COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: Resolving extreme star formation and AGN activity in a high redshift qua Exp. Code: gm076 Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: John McKean Address: ASTRON Postbus 2 7990 AA, Dwingeloo the Netherlands Phone: +31 521 595 780 EMAIL: mckean@astron.nl Fax: +31 521 595 101 Phone during observation: +31 624 328 991 Observing mode: 18cm 1024-8-2 Notes: Schedule for VLBA_HN (Code Hn ) Page 2 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- Next scan frequencies: 1594.00 1594.00 1626.00 1626.00 1658.00 1658.00 1690.00 1690.00 Next BBC frequencies: 806.00 806.00 774.00 774.00 742.00 742.00 710.00 710.00 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 14 30 30 J0827+5217 02 31 38 32.9 46.8 -6.0 -60.7 0 0 14 30 30 14 32 00 =0824+524 02 33 08 33.1 47.0 -5.9 -60.9 90 12 14 30 31 14 32 00 APM08279+525 02 33 08 32.8 46.1 -6.0 -60.6 -8 12 14 32 08 14 35 30 --- 02 36 39 33.3 46.5 -5.9 -61.1 202 38 14 32 01 14 36 00 J0827+5217 02 37 09 33.6 47.3 -5.9 -61.5 22 38 14 36 00 14 37 30 =0824+524 02 38 39 33.8 47.4 -5.8 -61.7 90 49 14 36 01 14 37 30 APM08279+525 02 38 39 33.5 46.6 -5.9 -61.4 -8 49 14 37 38 14 41 00 --- 02 42 09 34.0 46.9 -5.9 -61.9 202 75 14 37 31 14 41 00 J0827+5217 02 42 09 34.3 47.7 -5.8 -62.2 -8 75 14 41 08 14 42 30 =0824+524 02 43 40 34.5 47.9 -5.8 -62.4 82 86 14 41 01 14 42 30 APM08279+525 02 43 40 34.2 47.1 -5.8 -62.1 -8 86 14 42 38 14 46 00 --- 02 47 10 34.7 47.4 -5.8 -62.7 202 112 14 42 31 14 46 30 J0827+5217 02 47 40 35.0 48.2 -5.7 -63.0 22 112 14 46 30 14 48 00 =0824+524 02 49 11 35.2 48.3 -5.7 -63.3 90 123 14 46 31 14 48 00 APM08279+525 02 49 11 34.9 47.5 -5.7 -63.0 -8 123 14 48 08 14 51 30 --- 02 52 41 35.4 47.8 -5.7 -63.5 202 149 14 48 01 14 51 30 J0827+5217 02 52 41 35.7 48.6 -5.6 -63.8 -8 149 14 51 38 14 53 00 =0824+524 02 54 11 35.9 48.8 -5.6 -64.0 82 160 14 51 31 14 53 00 APM08279+525 02 54 11 35.6 47.9 -5.7 -63.7 -8 160 14 53 08 14 56 30 --- 02 57 42 36.1 48.2 -5.6 -64.3 202 186 14 53 01 14 57 00 J0827+5217 02 58 12 36.5 49.1 -5.5 -64.6 22 186 14 57 00 14 58 30 =0824+524 02 59 42 36.7 49.2 -5.5 -64.8 90 198 14 57 01 14 58 30 APM08279+525 02 59 42 36.4 48.4 -5.6 -64.6 -8 198 14 58 38 15 02 00 --- 03 03 13 36.8 48.7 -5.5 -65.1 202 224 14 58 31 15 02 00 J0827+5217 03 03 13 37.2 49.5 -5.4 -65.4 -8 224 15 02 08 15 03 30 =0824+524 03 04 43 37.4 49.6 -5.4 -65.6 82 234 15 02 01 15 03 30 APM08279+525 03 04 43 37.0 48.8 -5.5 -65.3 -8 234 15 03 38 15 07 00 --- 03 08 14 37.5 49.1 -5.4 -65.9 202 260 15 03 31 Schedule for VLBA_HN (Code Hn ) Page 3 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 15 07 30 J0827+5217 03 08 44 37.9 49.9 -5.3 -66.2 22 260 15 07 30 15 09 00 =0824+524 03 10 14 38.2 50.1 -5.3 -66.4 90 272 15 07 31 15 09 00 APM08279+525 03 10 14 37.8 49.2 -5.4 -66.2 -8 272 15 09 08 15 12 30 --- 03 13 45 38.3 49.5 -5.3 -66.7 202 298 15 09 01 15 12 30 J0827+5217 03 13 45 38.7 50.3 -5.3 -66.9 -8 298 15 12 38 15 14 00 =0824+524 03 15 15 38.9 50.4 -5.2 -67.2 82 308 15 12 31 15 14 00 APM08279+525 03 15 15 38.5 49.6 -5.3 -66.9 -8 308 15 14 08 15 17 30 --- 03 18 45 39.0 49.9 -5.2 -67.5 202 334 15 14 01 15 18 00 J0827+5217 03 19 15 39.4 50.7 -5.2 -67.8 22 334 15 18 00 15 19 30 =0824+524 03 20 46 39.6 50.9 -5.1 -68.0 90 346 15 18 01 15 19 30 APM08279+525 03 20 46 39.3 50.0 -5.2 -67.8 -8 346 15 19 38 15 23 00 --- 03 24 16 39.8 50.3 -5.1 -68.3 202 372 15 19 31 15 23 00 J0827+5217 03 24 16 40.1 51.1 -5.1 -68.5 -8 372 15 23 08 15 24 30 =0824+524 03 25 47 40.4 51.2 -5.1 -68.7 82 383 15 23 01 15 24 30 APM08279+525 03 25 47 40.0 50.4 -5.1 -68.5 -8 383 15 24 38 15 28 00 --- 03 29 17 40.5 50.6 -5.1 -69.1 202 409 15 24 31 15 28 30 J0827+5217 03 29 47 40.9 51.5 -5.0 -69.3 22 409 15 28 30 15 30 00 =0824+524 03 31 17 41.1 51.6 -5.0 -69.6 90 420 15 28 31 15 30 00 APM08279+525 03 31 17 40.8 50.8 -5.0 -69.4 -8 420 15 30 08 15 33 30 --- 03 34 48 41.3 51.0 -5.0 -69.9 202 446 15 30 01 15 33 30 J0827+5217 03 34 48 41.7 51.9 -4.9 -70.1 -9 446 15 33 39 15 35 00 =0824+524 03 36 18 41.9 52.0 -4.9 -70.3 81 457 15 33 31 15 35 00 APM08279+525 03 36 18 41.5 51.1 -4.9 -70.1 -8 457 15 35 08 15 38 30 --- 03 39 49 42.0 51.4 -4.9 -70.7 202 483 15 35 01 15 39 00 J0827+5217 03 40 19 42.4 52.2 -4.8 -70.9 21 483 15 39 00 15 40 30 =0824+524 03 41 49 42.7 52.3 -4.8 -71.2 90 494 15 39 01 15 40 30 APM08279+525 03 41 49 42.3 51.5 -4.9 -71.0 -9 494 15 40 39 15 44 00 --- 03 45 20 42.8 51.7 -4.8 -71.5 201 520 15 40 31 15 44 00 J0827+5217 03 45 20 43.2 52.6 -4.7 -71.7 -9 520 15 44 09 15 45 30 =0824+524 03 46 50 43.4 52.7 -4.7 -71.9 81 531 15 44 01 Schedule for VLBA_HN (Code Hn ) Page 4 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 15 45 30 APM08279+525 03 46 50 43.0 51.8 -4.8 -71.7 -9 531 15 45 39 15 49 00 --- 03 50 21 43.5 52.1 -4.7 -72.3 201 556 15 45 31 15 49 30 J0827+5217 03 50 51 44.0 52.9 -4.6 -72.5 21 556 15 49 30 15 51 00 =0824+524 03 52 21 44.2 53.0 -4.6 -72.8 90 568 15 49 31 15 51 00 APM08279+525 03 52 21 43.8 52.2 -4.7 -72.6 -9 568 15 51 09 15 54 30 --- 03 55 51 44.3 52.4 -4.6 -73.1 201 594 15 51 01 15 54 30 J0827+5217 03 55 51 44.7 53.3 -4.6 -73.3 -9 594 15 54 39 15 56 00 =0824+524 03 57 22 44.9 53.3 -4.5 -73.5 81 604 15 54 31 15 56 00 APM08279+525 03 57 22 44.5 52.5 -4.6 -73.4 -9 604 15 56 09 15 59 30 --- 04 00 52 45.0 52.7 -4.5 -73.9 201 630 15 56 01 16 00 00 J0827+5217 04 01 22 45.5 53.6 -4.5 -74.2 21 630 16 00 00 16 01 30 =0824+524 04 02 53 45.7 53.7 -4.4 -74.4 90 642 16 00 01 16 01 30 APM08279+525 04 02 53 45.3 52.8 -4.5 -74.2 -9 642 16 01 39 16 05 00 --- 04 06 23 45.8 53.0 -4.4 -74.8 201 668 16 01 31 16 05 00 J0827+5217 04 06 23 46.3 53.9 -4.4 -74.9 -9 668 16 05 09 16 06 30 =0824+524 04 07 53 46.5 54.0 -4.4 -75.2 81 678 16 05 01 16 06 30 APM08279+525 04 07 53 46.0 53.1 -4.4 -75.0 -9 678 16 06 39 16 10 00 --- 04 11 24 46.6 53.3 -4.4 -75.6 201 704 16 06 31 16 10 30 J0827+5217 04 11 54 47.1 54.2 -4.3 -75.8 21 704 16 10 30 16 12 00 =0824+524 04 13 24 47.3 54.3 -4.3 -76.0 90 716 16 10 31 16 12 00 APM08279+525 04 13 24 46.9 53.4 -4.3 -75.9 -9 716 16 12 09 16 15 30 --- 04 16 55 47.4 53.6 -4.3 -76.5 201 742 16 12 01 16 15 30 J0827+5217 04 16 55 47.8 54.5 -4.2 -76.6 -9 742 16 15 39 16 17 00 =0824+524 04 18 25 48.1 54.5 -4.2 -76.8 81 752 16 15 31 16 17 00 APM08279+525 04 18 25 47.6 53.7 -4.2 -76.7 -9 752 16 17 09 16 20 30 --- 04 21 56 48.1 53.9 -4.2 -77.3 201 778 16 17 01 16 21 00 J0827+5217 04 22 26 48.6 54.7 -4.1 -77.5 21 778 16 21 00 16 22 30 =0824+524 04 23 56 48.9 54.8 -4.1 -77.7 90 790 16 21 01 16 22 30 APM08279+525 04 23 56 48.4 54.0 -4.2 -77.6 -9 790 16 22 39 16 26 00 --- 04 27 27 48.9 54.1 -4.1 -78.2 201 815 16 22 31 Schedule for VLBA_HN (Code Hn ) Page 5 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 16 26 00 J0827+5217 04 27 27 49.4 55.0 -4.0 -78.3 -9 815 16 26 09 16 27 30 =0824+524 04 28 57 49.6 55.1 -4.0 -78.5 81 826 16 26 01 16 32 30 4C39.25 04 33 58 36.1 67.4 -4.9 -60.4 260 826 16 32 30 16 37 30 --- 04 38 59 36.9 68.0 -4.8 -60.8 300 865 16 32 31 16 42 30 J0827+5217 04 43 59 51.9 55.7 -3.8 -81.0 260 865 16 42 30 16 44 30 =0824+524 04 46 00 52.2 55.8 -3.7 -81.3 120 880 16 42 31 16 44 30 APM08279+525 04 46 00 51.7 54.9 -3.8 -81.3 -9 880 16 44 39 16 48 00 --- 04 49 30 52.2 55.0 -3.7 -81.9 201 906 16 44 31 16 48 30 J0827+5217 04 50 00 52.8 55.9 -3.7 -82.0 21 906 16 48 30 16 50 00 =0824+524 04 51 31 53.0 56.0 -3.6 -82.3 90 917 16 48 31 16 50 00 APM08279+525 04 51 31 52.5 55.1 -3.7 -82.2 -9 917 16 50 09 16 53 30 --- 04 55 01 53.0 55.2 -3.6 -82.8 201 943 16 50 01 16 53 30 J0827+5217 04 55 01 53.6 56.1 -3.6 -82.9 -9 943 16 53 39 16 55 00 =0824+524 04 56 31 53.8 56.2 -3.5 -83.1 81 954 16 53 31 16 55 00 APM08279+525 04 56 31 53.3 55.3 -3.6 -83.1 -9 954 16 55 09 16 58 30 --- 05 00 02 53.8 55.4 -3.6 -83.7 201 980 16 55 01 16 59 00 J0827+5217 05 00 32 54.4 56.3 -3.5 -83.8 21 980 16 59 00 17 00 30 =0824+524 05 02 02 54.6 56.3 -3.5 -84.1 90 991 16 59 01 17 00 30 APM08279+525 05 02 02 54.1 55.4 -3.5 -84.0 -9 991 17 00 39 17 04 00 --- 05 05 33 54.6 55.5 -3.5 -84.7 201 1017 17 00 31 17 04 00 J0827+5217 05 05 33 55.2 56.4 -3.4 -84.7 -9 1017 17 04 09 17 05 30 =0824+524 05 07 03 55.4 56.4 -3.4 -85.0 81 1028 17 04 01 17 05 30 APM08279+525 05 07 03 54.9 55.6 -3.4 -84.9 -9 1028 17 05 39 17 09 00 --- 05 10 34 55.4 55.6 -3.4 -85.6 201 1053 17 05 31 17 09 30 J0827+5217 05 11 04 56.0 56.5 -3.3 -85.7 21 1053 17 09 30 17 11 00 =0824+524 05 12 34 56.2 56.6 -3.3 -86.0 90 1065 17 09 31 17 11 00 APM08279+525 05 12 34 55.7 55.7 -3.3 -85.9 -9 1065 17 11 09 17 14 30 --- 05 16 05 56.2 55.7 -3.3 -86.6 201 1091 17 11 01 17 14 30 J0827+5217 05 16 05 56.8 56.6 -3.2 -86.6 -9 1091 17 14 39 17 16 00 =0824+524 05 17 35 57.0 56.6 -3.2 -86.9 81 1101 17 14 31 Schedule for VLBA_HN (Code Hn ) Page 6 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 17 16 00 APM08279+525 05 17 35 56.4 55.8 -3.3 -86.9 -9 1101 17 16 09 17 19 30 --- 05 21 05 57.0 55.8 -3.2 -87.5 201 1127 17 16 01 17 20 00 J0827+5217 05 21 36 57.6 56.7 -3.1 -87.6 21 1127 17 20 00 17 21 30 =0824+524 05 23 06 57.8 56.7 -3.1 -87.9 90 1139 17 20 01 17 21 30 APM08279+525 05 23 06 57.3 55.8 -3.2 -87.9 -9 1139 17 21 39 17 25 00 --- 05 26 36 57.8 55.9 -3.1 -88.6 201 1165 17 21 31 17 25 00 J0827+5217 05 26 36 58.4 56.7 -3.0 -88.6 -9 1165 17 25 09 17 26 30 =0824+524 05 28 07 58.6 56.8 -3.0 -88.9 81 1175 17 25 01 17 26 30 APM08279+525 05 28 07 58.0 55.9 -3.1 -88.9 -9 1175 17 26 39 17 30 00 --- 05 31 37 58.6 55.9 -3.0 -89.6 201 1201 17 26 31 17 30 30 J0827+5217 05 32 07 59.2 56.8 -3.0 -89.6 21 1201 17 30 30 17 32 00 =0824+524 05 33 38 59.5 56.8 -2.9 -89.9 90 1213 17 30 31 17 32 00 APM08279+525 05 33 38 58.9 55.9 -3.0 -89.9 -9 1213 17 32 09 17 35 30 --- 05 37 08 59.4 55.9 -2.9 -90.7 201 1239 17 32 01 17 35 30 J0827+5217 05 37 08 60.0 56.8 -2.9 -90.6 -9 1239 17 35 39 17 37 00 =0824+524 05 38 38 60.2 56.8 -2.8 -90.9 81 1249 17 35 31 17 37 00 APM08279+525 05 38 38 59.6 55.9 -2.9 -91.0 -9 1249 17 37 09 17 40 30 --- 05 42 09 60.2 55.9 -2.9 -91.7 201 1275 17 37 01 17 41 00 J0827+5217 05 42 39 60.8 56.7 -2.8 -91.8 21 1275 17 41 00 17 42 30 =0824+524 05 44 09 61.1 56.7 -2.8 -92.1 90 1287 17 41 01 17 42 30 APM08279+525 05 44 09 60.5 55.8 -2.8 -92.1 -9 1287 17 42 39 17 46 00 --- 05 47 40 61.0 55.8 -2.8 -92.8 201 1312 17 42 31 17 46 00 J0827+5217 05 47 40 61.6 56.7 -2.7 -92.8 -9 1312 17 46 09 17 47 30 =0824+524 05 49 10 61.8 56.6 -2.7 -93.1 81 1323 17 46 01 17 47 30 APM08279+525 05 49 10 61.2 55.8 -2.7 -93.1 -9 1323 17 47 39 17 51 00 --- 05 52 41 61.8 55.7 -2.7 -93.9 201 1349 17 47 31 17 51 30 J0827+5217 05 53 11 62.4 56.6 -2.6 -94.0 21 1349 17 51 30 17 53 00 =0824+524 05 54 41 62.7 56.5 -2.6 -94.3 90 1360 17 51 31 17 53 00 APM08279+525 05 54 41 62.1 55.6 -2.6 -94.3 -9 1360 17 53 09 17 56 30 --- 05 58 12 62.6 55.6 -2.6 -95.1 201 1386 17 53 01 Schedule for VLBA_HN (Code Hn ) Page 7 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 17 56 30 J0827+5217 05 58 12 63.2 56.4 -2.5 -95.1 -9 1386 17 56 39 17 58 00 =0824+524 05 59 42 63.4 56.4 -2.5 -95.4 81 1397 17 56 31 17 58 00 APM08279+525 05 59 42 62.8 55.5 -2.6 -95.5 -9 1397 17 58 09 18 01 30 --- 06 03 12 63.4 55.4 -2.5 -96.3 201 1423 17 58 01 18 02 00 J0827+5217 06 03 42 64.1 56.2 -2.4 -96.4 21 1423 18 02 00 18 03 30 =0824+524 06 05 13 64.3 56.2 -2.4 -96.7 90 1434 18 02 01 18 03 30 APM08279+525 06 05 13 63.7 55.3 -2.5 -96.7 -9 1434 18 03 39 18 07 00 --- 06 08 43 64.2 55.2 -2.4 -97.6 201 1460 18 03 31 18 07 00 J0827+5217 06 08 43 64.8 56.0 -2.3 -97.5 -9 1460 18 07 09 18 08 30 =0824+524 06 10 14 65.0 56.0 -2.3 -97.9 81 1470 18 07 01 18 08 30 APM08279+525 06 10 14 64.4 55.1 -2.4 -97.9 -9 1470 18 08 39 18 12 00 --- 06 13 44 64.9 54.9 -2.3 -98.8 201 1496 18 08 31 18 12 30 J0827+5217 06 14 14 65.7 55.7 -2.3 -98.9 21 1496 18 12 30 18 14 00 =0824+524 06 15 44 65.9 55.6 -2.2 -99.3 90 1508 18 12 31 18 14 00 APM08279+525 06 15 44 65.2 54.8 -2.3 -99.3 -9 1508 18 14 09 18 17 30 --- 06 19 15 65.8 54.6 -2.2 -100.2 201 1534 18 14 01 18 17 30 J0827+5217 06 19 15 66.4 55.4 -2.2 -100.2 -9 1534 18 17 39 18 19 00 =0824+524 06 20 45 66.6 55.3 -2.1 -100.6 81 1544 18 17 31 18 19 00 APM08279+525 06 20 45 66.0 54.5 -2.2 -100.6 -9 1544 18 19 09 18 22 30 --- 06 24 16 66.5 54.2 -2.1 -101.5 201 1570 18 19 01 18 23 00 J0827+5217 06 24 46 67.2 55.0 -2.1 -101.6 21 1570 18 23 00 18 24 30 =0824+524 06 26 16 67.5 54.9 -2.1 -102.0 90 1582 18 23 01 18 24 30 APM08279+525 06 26 16 66.8 54.1 -2.1 -102.1 -9 1582 18 24 39 18 28 00 --- 06 29 47 67.3 53.8 -2.1 -103.0 201 1608 18 24 31 18 28 00 J0827+5217 06 29 47 68.0 54.6 -2.0 -103.0 -9 1608 18 28 09 18 29 30 =0824+524 06 31 17 68.2 54.4 -2.0 -103.5 81 1618 18 28 01 18 29 30 APM08279+525 06 31 17 67.5 53.6 -2.0 -103.5 -9 1618 18 29 39 18 33 00 --- 06 34 48 68.1 53.3 -2.0 -104.5 201 1644 18 29 31 18 33 30 J0827+5217 06 35 18 68.8 54.0 -1.9 -104.6 21 1644 18 33 30 18 35 00 =0824+524 06 36 48 69.0 53.9 -1.9 -105.1 90 1656 18 33 31 Schedule for VLBA_HN (Code Hn ) Page 8 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 18 35 00 APM08279+525 06 36 48 68.4 53.1 -1.9 -105.1 -9 1656 18 35 09 18 38 30 --- 06 40 18 68.9 52.7 -1.9 -106.1 201 1681 18 35 01 18 38 30 J0827+5217 06 40 18 69.5 53.5 -1.8 -106.2 -9 1681 18 38 39 18 40 00 =0824+524 06 41 49 69.8 53.3 -1.8 -106.6 81 1692 18 38 31 18 40 00 APM08279+525 06 41 49 69.1 52.5 -1.9 -106.6 -9 1692 18 40 09 18 43 30 --- 06 45 19 69.6 52.1 -1.8 -107.7 201 1718 18 40 01 18 44 00 J0827+5217 06 45 49 70.4 52.7 -1.7 -107.9 21 1718 18 44 00 18 45 30 =0824+524 06 47 20 70.6 52.5 -1.7 -108.4 90 1729 18 44 01 18 45 30 APM08279+525 06 47 20 69.9 51.8 -1.8 -108.4 -9 1729 18 45 39 18 49 00 --- 06 50 50 70.4 51.3 -1.7 -109.5 201 1755 18 45 31 18 49 00 J0827+5217 06 50 50 71.1 52.0 -1.6 -109.6 -9 1755 18 49 09 18 50 30 =0824+524 06 52 20 71.3 51.8 -1.6 -110.1 81 1766 18 49 01 18 50 30 APM08279+525 06 52 20 70.6 51.1 -1.7 -110.0 -9 1766 18 50 39 18 54 00 --- 06 55 51 71.1 50.5 -1.6 -111.3 201 1792 18 50 31 18 54 30 J0827+5217 06 56 21 71.9 51.1 -1.6 -111.6 21 1792 18 54 30 18 56 00 =0824+524 06 57 51 72.1 50.8 -1.5 -112.2 90 1803 18 54 31 18 56 00 APM08279+525 06 57 51 71.4 50.1 -1.6 -112.0 -9 1803 18 56 09 18 59 30 --- 07 01 22 71.9 49.5 -1.5 -113.3 201 1829 18 56 01 18 59 30 J0827+5217 07 01 22 72.6 50.1 -1.5 -113.5 -9 1829 18 59 39 19 01 00 =0824+524 07 02 52 72.8 49.8 -1.4 -114.1 81 1840 18 59 31 19 01 00 APM08279+525 07 02 52 72.1 49.2 -1.5 -113.9 -9 1840 19 01 09 19 04 30 --- 07 06 23 72.6 48.5 -1.4 -115.3 201 1865 19 01 01 19 05 00 J0827+5217 07 06 53 73.4 48.9 -1.4 -115.7 21 1865 19 05 00 19 06 30 =0824+524 07 08 23 73.6 48.5 -1.4 -116.4 90 1877 19 05 01 19 06 30 APM08279+525 07 08 23 72.8 48.0 -1.4 -116.1 -9 1877 19 06 39 19 10 00 --- 07 11 54 73.3 47.2 -1.4 -117.6 201 1903 19 06 31 19 10 00 J0827+5217 07 11 54 74.0 47.7 -1.3 -117.9 -9 1903 19 10 09 19 11 30 =0824+524 07 13 24 74.2 47.3 -1.3 -118.6 81 1913 19 10 01 19 11 30 APM08279+525 07 13 24 73.5 46.8 -1.3 -118.3 -9 1913 19 11 39 19 15 00 --- 07 16 54 74.0 45.9 -1.3 -119.9 201 1939 19 11 31 Schedule for VLBA_HN (Code Hn ) Page 9 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 19 15 30 J0827+5217 07 17 25 74.8 46.1 -1.2 -120.5 21 1939 19 15 30 19 17 00 =0824+524 07 18 55 75.0 45.7 -1.2 -121.2 90 1951 19 15 31 19 17 00 APM08279+525 07 18 55 74.2 45.3 -1.2 -120.8 -9 1951 19 17 09 19 20 30 --- 07 22 25 74.7 44.3 -1.2 -122.5 201 1977 19 17 01 19 20 30 J0827+5217 07 22 25 75.4 44.6 -1.1 -123.0 -9 1977 19 20 39 19 22 00 =0824+524 07 23 56 75.6 44.1 -1.1 -123.8 81 1987 19 20 31 19 22 00 APM08279+525 07 23 56 74.9 43.8 -1.2 -123.2 -9 1987 19 22 09 19 25 30 --- 07 27 26 75.3 42.7 -1.1 -125.1 201 2013 19 22 01 19 26 00 J0827+5217 07 27 56 76.1 42.6 -1.0 -126.0 21 2013 19 26 00 19 27 30 =0824+524 07 29 26 76.3 42.0 -1.0 -126.8 90 2025 19 26 01 19 27 30 APM08279+525 07 29 26 75.6 42.0 -1.1 -126.1 -9 2025 19 27 39 19 31 00 --- 07 32 57 76.0 40.6 -1.0 -128.1 201 2051 19 27 31 19 31 00 J0827+5217 07 32 57 76.7 40.6 -0.9 -128.9 -9 2051 19 31 09 19 32 30 =0824+524 07 34 27 76.9 40.0 -0.9 -129.8 81 2061 19 31 01 19 32 30 APM08279+525 07 34 27 76.2 40.1 -1.0 -129.0 -9 2061 19 32 39 19 36 00 --- 07 37 58 76.6 38.6 -0.9 -131.1 201 2087 19 32 31 19 36 30 J0827+5217 07 38 28 77.4 38.2 -0.8 -132.4 21 2087 19 36 30 19 38 00 =0824+524 07 39 58 77.5 37.5 -0.8 -133.4 90 2098 19 36 31 19 38 00 APM08279+525 07 39 58 76.8 37.7 -0.9 -132.4 -9 2098 19 38 09 19 41 30 --- 07 43 29 77.2 36.1 -0.8 -134.6 201 2124 19 38 01 19 41 30 J0827+5217 07 43 29 77.9 35.7 -0.8 -135.8 -9 2124 19 41 39 19 43 00 =0824+524 07 44 59 78.1 34.9 -0.7 -136.9 81 2135 19 41 31 19 43 00 APM08279+525 07 44 59 77.4 35.4 -0.8 -135.6 -9 2135 19 43 09 19 46 30 --- 07 48 30 77.7 33.6 -0.7 -138.1 201 2161 19 43 01 19 47 00 J0827+5217 07 49 00 78.5 32.6 -0.7 -139.9 21 2161 19 47 00 19 48 30 =0824+524 07 50 30 78.6 31.7 -0.6 -141.1 90 2172 19 47 01 19 48 30 APM08279+525 07 50 30 77.9 32.5 -0.7 -139.6 -9 2172 19 48 39 19 52 00 --- 07 54 01 78.3 30.5 -0.7 -142.2 201 2198 19 48 31 19 52 00 J0827+5217 07 54 01 79.0 29.5 -0.6 -143.9 -9 2198 19 52 09 19 53 30 =0824+524 07 55 31 79.1 28.5 -0.6 -145.2 81 2209 19 52 01 Schedule for VLBA_HN (Code Hn ) Page 10 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 19 58 30 4C39.25 08 00 32 73.0 96.1 -1.5 -69.4 243 2209 19 58 30 20 03 30 --- 08 05 32 73.9 97.3 -1.4 -69.0 300 2247 19 58 31 20 08 30 J0827+5217 08 10 33 80.2 17.2 -0.3 -159.3 235 2247 20 08 30 20 13 30 =0824+524 08 15 34 80.4 12.9 -0.2 -164.6 300 2286 20 08 31 20 13 30 APM08279+525 08 15 34 79.8 15.3 -0.3 -161.4 -10 2286 20 13 40 20 17 00 --- 08 19 05 80.0 12.4 -0.2 -165.0 200 2312 20 13 31 20 17 30 J0827+5217 08 19 35 80.6 9.2 -0.2 -168.9 20 2312 20 17 30 20 19 00 =0824+524 08 21 05 80.6 7.9 -0.1 -170.6 90 2323 20 17 31 20 19 00 APM08279+525 08 21 05 80.0 10.7 -0.2 -167.0 -10 2323 20 19 10 20 22 30 --- 08 24 36 80.1 7.7 -0.1 -170.7 200 2349 20 19 01 20 22 30 J0827+5217 08 24 36 80.7 4.6 -0.1 -174.5 -10 2349 20 22 40 20 24 00 =0824+524 08 26 06 80.7 3.2 -0.1 -176.2 80 2359 20 22 31 20 24 00 APM08279+525 08 26 06 80.2 6.4 -0.1 -172.3 -10 2359 20 24 10 20 27 30 --- 08 29 36 80.2 3.2 -0.1 -176.1 200 2385 20 24 01 20 28 00 J0827+5217 08 30 06 80.7 -0.6 0.0 179.2 20 2385 20 28 00 20 29 30 =0824+524 08 31 37 80.7 -2.1 0.0 177.5 90 2397 20 28 01 20 29 30 APM08279+525 08 31 37 80.2 1.5 -0.0 -178.2 -10 2397 20 29 40 20 33 00 --- 08 35 07 80.2 -1.7 0.0 178.0 200 2422 20 29 31 20 33 00 J0827+5217 08 35 07 80.7 -5.4 0.1 173.6 -11 2422 20 33 11 20 34 30 =0824+524 08 36 37 80.6 -6.8 0.1 171.9 79 2433 20 33 01 20 34 30 APM08279+525 08 36 37 80.2 -3.0 0.1 176.3 -11 2433 20 34 41 20 38 00 --- 08 40 08 80.2 -6.1 0.1 172.6 199 2458 20 34 31 20 38 30 J0827+5217 08 40 38 80.5 -10.5 0.2 167.5 19 2458 20 38 30 20 40 00 =0824+524 08 42 08 80.5 -11.8 0.2 165.8 90 2470 20 38 31 20 40 00 APM08279+525 08 42 08 80.1 -7.9 0.1 170.5 -11 2470 20 40 11 20 43 30 --- 08 45 39 80.0 -10.9 0.2 166.8 199 2495 20 40 01 20 43 30 J0827+5217 08 45 39 80.3 -14.9 0.3 162.1 -11 2495 20 43 41 20 45 00 =0824+524 08 47 09 80.2 -16.2 0.3 160.5 79 2506 20 43 31 20 45 00 APM08279+525 08 47 09 80.0 -12.2 0.2 165.2 -11 2506 20 45 11 20 48 30 --- 08 50 40 79.8 -15.1 0.3 161.7 199 2531 20 45 01 Schedule for VLBA_HN (Code Hn ) Page 11 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 20 49 00 J0827+5217 08 51 10 80.0 -19.5 0.4 156.4 19 2531 20 49 00 20 50 30 =0824+524 08 52 40 79.9 -20.7 0.4 155.0 90 2543 20 49 01 20 50 30 APM08279+525 08 52 40 79.7 -16.7 0.3 159.7 -11 2543 20 50 41 20 54 00 --- 08 56 11 79.5 -19.5 0.4 156.3 199 2569 20 50 31 20 54 00 J0827+5217 08 56 11 79.7 -23.4 0.4 151.6 -11 2569 20 54 11 20 55 30 =0824+524 08 57 41 79.6 -24.6 0.5 150.2 79 2579 20 54 01 20 55 30 APM08279+525 08 57 41 79.4 -20.6 0.4 154.9 -11 2579 20 55 41 20 59 00 --- 09 01 12 79.2 -23.2 0.5 151.7 199 2604 20 55 31 20 59 30 J0827+5217 09 01 42 79.2 -27.4 0.5 146.6 19 2604 20 59 30 21 01 00 =0824+524 09 03 12 79.1 -28.4 0.6 145.3 90 2616 20 59 31 21 01 00 APM08279+525 09 03 12 79.0 -24.6 0.5 149.9 -11 2616 21 01 11 21 04 30 --- 09 06 42 78.8 -26.9 0.6 146.9 199 2642 21 01 01 21 04 30 J0827+5217 09 06 42 78.8 -30.7 0.6 142.4 -11 2642 21 04 41 21 06 00 =0824+524 09 08 13 78.7 -31.6 0.6 141.2 79 2652 21 04 31 21 06 00 APM08279+525 09 08 13 78.6 -27.9 0.6 145.6 -11 2652 21 06 11 21 09 30 --- 09 11 43 78.3 -30.0 0.6 142.8 199 2677 21 06 01 21 10 00 J0827+5217 09 12 13 78.3 -34.0 0.7 138.1 19 2677 21 10 00 21 11 30 =0824+524 09 13 44 78.1 -34.8 0.7 137.0 90 2689 21 10 01 21 11 30 APM08279+525 09 13 44 78.1 -31.2 0.7 141.3 -10 2689 21 11 40 21 15 00 --- 09 17 14 77.8 -33.2 0.7 138.6 200 2715 21 11 31 21 15 00 J0827+5217 09 17 14 77.7 -36.6 0.8 134.5 -10 2715 21 15 10 21 16 30 =0824+524 09 18 44 77.6 -37.4 0.8 133.5 80 2725 21 15 01 21 16 30 APM08279+525 09 18 44 77.6 -34.0 0.8 137.6 -10 2725 21 16 40 21 20 00 --- 09 22 15 77.3 -35.7 0.8 135.1 200 2751 21 16 31 21 20 30 J0827+5217 09 22 45 77.1 -39.2 0.9 130.9 20 2751 21 20 30 21 22 00 =0824+524 09 24 15 76.9 -39.9 0.9 129.9 90 2762 21 20 31 21 22 00 APM08279+525 09 24 15 77.1 -36.7 0.9 133.8 -10 2762 21 22 10 21 25 30 --- 09 27 46 76.7 -38.3 0.9 131.6 200 2788 21 22 01 21 25 30 J0827+5217 09 27 46 76.5 -41.4 1.0 127.8 -10 2788 21 25 40 21 27 00 =0824+524 09 29 16 76.3 -42.0 1.0 126.9 80 2798 21 25 31 Schedule for VLBA_HN (Code Hn ) Page 12 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 21 27 00 APM08279+525 09 29 16 76.5 -38.9 0.9 130.6 -10 2798 21 27 10 21 30 30 --- 09 32 47 76.1 -40.4 1.0 128.5 200 2824 21 27 01 21 31 00 J0827+5217 09 33 17 75.8 -43.5 1.1 124.7 20 2824 21 31 00 21 32 30 =0824+524 09 34 47 75.6 -44.0 1.1 123.9 90 2836 21 31 01 21 32 30 APM08279+525 09 34 47 75.8 -41.1 1.0 127.4 -10 2836 21 32 40 21 36 00 --- 09 38 18 75.4 -42.4 1.1 125.5 200 2862 21 32 31 21 36 00 J0827+5217 09 38 18 75.2 -45.2 1.1 122.1 -10 2862 21 36 10 21 37 30 =0824+524 09 39 48 75.0 -45.6 1.2 121.3 80 2872 21 36 01 21 37 30 APM08279+525 09 39 48 75.2 -42.9 1.1 124.7 -10 2872 21 37 40 21 41 00 --- 09 43 18 74.8 -44.1 1.2 122.9 200 2898 21 37 31 21 41 30 J0827+5217 09 43 48 74.5 -46.8 1.2 119.4 20 2898 21 41 30 21 43 00 =0824+524 09 45 19 74.3 -47.2 1.3 118.7 90 2909 21 41 31 21 43 00 APM08279+525 09 45 19 74.5 -44.7 1.2 121.9 -10 2909 21 43 10 21 46 30 --- 09 48 49 74.1 -45.7 1.3 120.2 200 2935 21 43 01 21 46 30 J0827+5217 09 48 49 73.8 -48.1 1.3 117.1 -10 2935 21 46 40 21 48 00 =0824+524 09 50 20 73.6 -48.5 1.3 116.5 80 2945 21 46 31 21 48 00 APM08279+525 09 50 20 73.9 -46.1 1.3 119.5 -10 2945 21 48 10 21 51 30 --- 09 53 50 73.4 -47.0 1.3 117.9 200 2971 21 48 01 21 52 00 J0827+5217 09 54 20 73.0 -49.4 1.4 114.8 20 2971 21 52 00 21 53 30 =0824+524 09 55 50 72.8 -49.7 1.4 114.2 90 2983 21 52 01 21 53 30 APM08279+525 09 55 50 73.1 -47.5 1.4 117.1 -9 2983 21 53 39 21 57 00 --- 09 59 21 72.7 -48.3 1.4 115.6 201 3009 21 53 31 21 57 00 J0827+5217 09 59 21 72.3 -50.5 1.5 112.8 -9 3009 21 57 09 21 58 30 =0824+524 10 00 51 72.1 -50.8 1.5 112.2 81 3019 21 57 01 21 58 30 APM08279+525 10 00 51 72.5 -48.6 1.5 115.0 -9 3019 21 58 39 22 02 00 --- 10 04 22 72.0 -49.3 1.5 113.6 201 3045 21 58 31 22 02 30 J0827+5217 10 04 52 71.5 -51.5 1.6 110.7 21 3045 22 02 30 22 04 00 =0824+524 10 06 22 71.3 -51.7 1.6 110.2 90 3056 22 02 31 22 04 00 APM08279+525 10 06 22 71.7 -49.7 1.6 112.9 -9 3056 22 04 09 22 07 30 --- 10 09 53 71.2 -50.4 1.6 111.6 201 3082 22 04 01 Schedule for VLBA_HN (Code Hn ) Page 13 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 22 07 30 J0827+5217 10 09 53 70.8 -52.3 1.7 109.0 -9 3082 22 07 39 22 09 00 =0824+524 10 11 23 70.6 -52.5 1.7 108.5 81 3093 22 07 31 22 09 00 APM08279+525 10 11 23 71.0 -50.6 1.6 111.0 -9 3093 22 09 09 22 12 30 --- 10 14 54 70.5 -51.2 1.7 109.8 201 3119 22 09 01 22 13 00 J0827+5217 10 15 24 70.0 -53.1 1.8 107.2 21 3119 22 13 00 22 14 30 =0824+524 10 16 54 69.8 -53.3 1.8 106.7 90 3130 22 13 01 22 14 30 APM08279+525 10 16 54 70.2 -51.5 1.7 109.1 -9 3130 22 14 39 22 18 00 --- 10 20 24 69.7 -52.0 1.8 107.9 201 3156 22 14 31 22 18 00 J0827+5217 10 20 24 69.3 -53.7 1.8 105.6 -9 3156 22 18 09 22 19 30 =0824+524 10 21 55 69.1 -53.9 1.9 105.1 81 3167 22 18 01 22 19 30 APM08279+525 10 21 55 69.5 -52.2 1.8 107.5 -9 3167 22 19 39 22 23 00 --- 10 25 25 69.0 -52.6 1.9 106.4 201 3193 22 19 31 22 23 30 J0827+5217 10 25 55 68.5 -54.3 1.9 103.9 21 3193 22 23 30 22 25 00 =0824+524 10 27 26 68.2 -54.4 2.0 103.5 90 3204 22 23 31 22 25 00 APM08279+525 10 27 26 68.7 -52.8 1.9 105.7 -9 3204 22 25 09 22 28 30 --- 10 30 56 68.2 -53.2 2.0 104.7 201 3230 22 25 01 22 28 30 J0827+5217 10 30 56 67.7 -54.8 2.0 102.5 -9 3230 22 28 39 22 30 00 =0824+524 10 32 26 67.5 -54.9 2.1 102.1 81 3240 22 28 31 22 30 00 APM08279+525 10 32 26 68.0 -53.4 2.0 104.2 -9 3240 22 30 09 22 33 30 --- 10 35 57 67.4 -53.7 2.0 103.2 201 3266 22 30 01 22 34 00 J0827+5217 10 36 27 66.9 -55.2 2.1 101.0 21 3266 22 34 00 22 35 30 =0824+524 10 37 57 66.7 -55.3 2.1 100.6 90 3278 22 34 01 22 35 30 APM08279+525 10 37 57 67.1 -53.9 2.1 102.7 -9 3278 22 35 39 22 39 00 --- 10 41 28 66.6 -54.2 2.1 101.7 201 3304 22 35 31 22 39 30 J0827+5217 10 41 58 66.1 -55.6 2.2 99.6 21 3304 22 39 30 22 41 00 =0824+524 10 43 28 65.8 -55.7 2.2 99.2 90 3315 22 39 31 22 41 00 APM08279+525 10 43 28 66.3 -54.3 2.2 101.2 -9 3315 22 41 09 22 44 30 --- 10 46 59 65.8 -54.6 2.2 100.3 201 3341 22 41 01 22 45 00 J0827+5217 10 47 29 65.2 -55.9 2.3 98.2 21 3341 22 45 00 22 46 30 =0824+524 10 48 59 65.0 -56.0 2.3 97.8 90 3353 22 45 01 Schedule for VLBA_HN (Code Hn ) Page 14 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 22 46 30 APM08279+525 10 48 59 65.5 -54.7 2.3 99.7 -9 3353 22 46 39 22 50 00 --- 10 52 30 65.0 -54.9 2.3 98.9 201 3379 22 46 31 22 50 30 J0827+5217 10 53 00 64.4 -56.2 2.4 96.9 21 3379 22 50 30 22 52 00 =0824+524 10 54 30 64.2 -56.2 2.4 96.5 90 3390 22 50 31 22 52 00 APM08279+525 10 54 30 64.7 -55.0 2.4 98.4 -9 3390 22 52 09 22 55 30 --- 10 58 01 64.1 -55.2 2.4 97.5 201 3416 22 52 01 22 56 00 J0827+5217 10 58 31 63.5 -56.4 2.5 95.6 21 3416 22 56 00 22 57 30 =0824+524 11 00 01 63.3 -56.4 2.5 95.3 90 3428 22 56 01 22 57 30 APM08279+525 11 00 01 63.8 -55.3 2.4 97.0 -9 3428 22 57 39 23 01 00 --- 11 03 32 63.3 -55.4 2.5 96.2 201 3454 22 57 31 23 01 30 J0827+5217 11 04 02 62.7 -56.5 2.6 94.4 21 3454 23 01 30 23 03 00 =0824+524 11 05 32 62.5 -56.6 2.6 94.0 90 3465 23 01 31 23 03 00 APM08279+525 11 05 32 63.0 -55.5 2.5 95.8 -9 3465 23 03 09 23 06 30 --- 11 09 02 62.5 -55.6 2.6 95.0 201 3491 23 03 01 23 07 00 J0827+5217 11 09 33 61.9 -56.6 2.7 93.2 21 3491 23 07 00 23 08 30 =0824+524 11 11 03 61.6 -56.7 2.7 92.8 90 3503 23 07 01 23 08 30 APM08279+525 11 11 03 62.2 -55.6 2.6 94.5 -9 3503 23 08 39 23 12 00 --- 11 14 33 61.7 -55.7 2.7 93.7 201 3529 23 08 31 23 12 30 J0827+5217 11 15 03 61.0 -56.7 2.8 92.0 21 3529 23 12 30 23 14 00 =0824+524 11 16 34 60.8 -56.7 2.8 91.7 90 3540 23 12 31 23 14 00 APM08279+525 11 16 34 61.3 -55.7 2.7 93.3 -9 3540 23 14 09 23 17 30 --- 11 20 04 60.8 -55.8 2.8 92.6 201 3566 23 14 01 23 18 00 J0827+5217 11 20 34 60.2 -56.8 2.9 90.9 21 3566 23 18 00 23 19 30 =0824+524 11 22 05 59.9 -56.8 2.9 90.6 90 3578 23 18 01 23 19 30 APM08279+525 11 22 05 60.5 -55.8 2.8 92.1 -9 3578 23 19 39 23 23 00 --- 11 25 35 60.0 -55.9 2.9 91.4 201 3604 23 19 31 23 23 30 J0827+5217 11 26 05 59.3 -56.8 2.9 89.8 21 3604 23 23 30 23 25 00 =0824+524 11 27 35 59.1 -56.8 3.0 89.5 90 3615 23 23 31 23 25 00 APM08279+525 11 27 35 59.7 -55.9 2.9 91.0 -9 3615 23 25 09 23 28 30 --- 11 31 06 59.1 -55.9 3.0 90.3 201 3641 23 25 01 Schedule for VLBA_HN (Code Hn ) Page 15 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 3 Jun 2021 Day 154 --- 23 29 00 J0827+5217 11 31 36 58.5 -56.8 3.0 88.7 21 3641 23 29 00 23 30 30 =0824+524 11 33 06 58.3 -56.7 3.1 88.4 90 3653 23 29 01 23 30 30 APM08279+525 11 33 06 58.8 -55.9 3.0 89.9 -9 3653 23 30 39 23 34 00 --- 11 36 37 58.3 -55.9 3.1 89.2 201 3679 23 30 31 23 34 30 J0827+5217 11 37 07 57.6 -56.7 3.1 87.7 21 3679 23 34 30 23 36 00 =0824+524 11 38 37 57.4 -56.7 3.2 87.4 90 3690 23 34 31 23 36 00 APM08279+525 11 38 37 58.0 -55.9 3.1 88.8 -9 3690 23 36 09 23 39 30 --- 11 42 08 57.5 -55.8 3.1 88.1 201 3716 23 36 01 23 40 00 J0827+5217 11 42 38 56.8 -56.6 3.2 86.6 21 3716 23 40 00 23 41 30 =0824+524 11 44 08 56.6 -56.6 3.2 86.4 90 3728 23 40 01 23 41 30 APM08279+525 11 44 08 57.2 -55.8 3.2 87.8 -9 3728 23 41 39 23 45 00 --- 11 47 39 56.6 -55.8 3.2 87.1 201 3754 23 41 31 23 45 30 J0827+5217 11 48 09 56.0 -56.5 3.3 85.6 21 3754 23 45 30 23 47 00 =0824+524 11 49 39 55.7 -56.5 3.3 85.4 90 3765 23 45 31 23 47 00 APM08279+525 11 49 39 56.3 -55.8 3.3 86.7 -9 3765 23 47 09 23 50 30 --- 11 53 10 55.8 -55.7 3.3 86.1 201 3791 23 47 01 23 51 00 J0827+5217 11 53 40 55.1 -56.4 3.4 84.6 21 3791 23 51 00 23 52 30 =0824+524 11 55 10 54.9 -56.4 3.4 84.4 90 3803 23 51 01 23 52 30 APM08279+525 11 55 10 55.5 -55.7 3.4 85.7 -9 3803 23 52 39 23 56 00 --- 11 58 41 55.0 -55.6 3.4 85.1 201 3829 23 52 31 23 56 30 J0827+5217 11 59 11 54.3 -56.2 3.5 83.7 21 3829 23 56 30 23 58 00 =0824+524 12 00 41 54.0 -56.2 3.5 83.4 90 3840 23 56 31 --- Start: Thu 3 Jun 2021 Day 154 -- Stop: Fri 4 Jun 2021 Day 155 --- 23 58 00 APM08279+525 12 00 41 54.7 -55.5 3.5 84.7 -9 3840 23 58 09 00 01 30 --- 12 04 11 54.1 -55.4 3.5 84.1 201 3866 23 58 01 00 02 00 J0827+5217 12 04 42 53.4 -56.1 3.6 82.7 21 3866 00 02 00 00 03 30 =0824+524 12 06 12 53.2 -56.0 3.6 82.5 90 3878 00 02 01 00 03 30 APM08279+525 12 06 12 53.8 -55.4 3.5 83.7 -9 3878 00 03 39 00 07 00 --- 12 09 42 53.3 -55.3 3.6 83.1 201 3904 00 03 31 Schedule for VLBA_HN (Code Hn ) Page 16 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 00 07 30 J0827+5217 12 10 12 52.6 -55.9 3.7 81.8 21 3904 00 07 30 00 09 00 =0824+524 12 11 43 52.4 -55.8 3.7 81.5 90 3915 00 07 31 00 09 00 APM08279+525 12 11 43 53.0 -55.2 3.6 82.8 -9 3915 00 09 09 00 12 30 --- 12 15 13 52.5 -55.1 3.7 82.2 201 3941 00 09 01 00 13 00 J0827+5217 12 15 43 51.8 -55.7 3.8 80.9 21 3941 00 13 00 00 14 30 =0824+524 12 17 14 51.5 -55.6 3.8 80.6 90 3953 00 13 01 00 14 30 APM08279+525 12 17 14 52.2 -55.0 3.7 81.8 -9 3953 00 14 39 00 18 00 --- 12 20 44 51.7 -54.9 3.8 81.2 201 3979 00 14 31 00 18 30 J0827+5217 12 21 14 50.9 -55.5 3.9 79.9 21 3979 00 18 30 00 20 00 =0824+524 12 22 45 50.7 -55.4 3.9 79.7 90 3990 00 18 31 00 25 00 4C39.25 12 27 45 56.3 -81.2 3.0 68.5 273 3990 00 25 00 00 30 00 --- 12 32 46 55.4 -80.6 3.1 68.2 300 4029 00 25 01 00 34 30 J0827+5217 12 37 17 48.5 -54.7 4.1 77.3 243 4029 00 34 30 00 36 30 =0824+524 12 39 17 48.2 -54.6 4.2 77.0 120 4044 00 34 31 00 36 30 APM08279+525 12 39 17 48.9 -54.1 4.1 78.1 -9 4044 00 36 39 00 40 00 --- 12 42 48 48.4 -54.0 4.2 77.6 201 4070 00 36 31 00 40 30 J0827+5217 12 43 18 47.6 -54.4 4.2 76.4 21 4070 00 40 30 00 42 00 =0824+524 12 44 48 47.4 -54.3 4.3 76.1 90 4082 00 40 31 00 42 00 APM08279+525 12 44 48 48.1 -53.9 4.2 77.2 -9 4082 00 42 09 00 45 30 --- 12 48 19 47.6 -53.7 4.3 76.7 201 4108 00 42 01 00 46 00 J0827+5217 12 48 49 46.8 -54.1 4.3 75.5 21 4108 00 46 00 00 47 30 =0824+524 12 50 19 46.6 -54.0 4.3 75.3 90 4119 00 46 01 00 47 30 APM08279+525 12 50 19 47.3 -53.6 4.3 76.4 -9 4119 00 47 39 00 51 00 --- 12 53 50 46.7 -53.4 4.3 75.8 201 4145 00 47 31 00 51 30 J0827+5217 12 54 20 46.0 -53.8 4.4 74.7 21 4145 00 51 30 00 53 00 =0824+524 12 55 50 45.8 -53.7 4.4 74.4 90 4157 00 51 31 00 53 00 APM08279+525 12 55 50 46.4 -53.3 4.4 75.5 -9 4157 00 53 09 00 56 30 --- 12 59 21 45.9 -53.1 4.4 74.9 201 4183 00 53 01 00 57 00 J0827+5217 12 59 51 45.2 -53.4 4.5 73.8 21 4183 00 57 00 00 58 30 =0824+524 13 01 21 45.0 -53.4 4.5 73.6 90 4194 00 57 01 Schedule for VLBA_HN (Code Hn ) Page 17 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 00 58 30 APM08279+525 13 01 21 45.6 -53.0 4.5 74.6 -9 4194 00 58 39 01 02 00 --- 13 04 51 45.1 -52.8 4.5 74.1 201 4220 00 58 31 01 02 30 J0827+5217 13 05 22 44.4 -53.1 4.6 73.0 21 4220 01 02 30 01 04 00 =0824+524 13 06 52 44.2 -53.0 4.6 72.7 90 4232 01 02 31 01 04 00 APM08279+525 13 06 52 44.8 -52.6 4.6 73.7 -9 4232 01 04 09 01 07 30 --- 13 10 22 44.3 -52.4 4.6 73.2 201 4258 01 04 01 01 08 00 J0827+5217 13 10 52 43.6 -52.8 4.7 72.1 21 4258 01 08 00 01 09 30 =0824+524 13 12 23 43.3 -52.7 4.7 71.9 90 4269 01 08 01 01 09 30 APM08279+525 13 12 23 44.0 -52.3 4.7 72.9 -9 4269 01 09 39 01 13 00 --- 13 15 53 43.5 -52.1 4.7 72.3 201 4295 01 09 31 01 13 30 J0827+5217 13 16 23 42.8 -52.4 4.8 71.3 21 4295 01 13 30 01 15 00 =0824+524 13 17 54 42.5 -52.3 4.8 71.0 90 4307 01 13 31 01 15 00 APM08279+525 13 17 54 43.2 -52.0 4.7 72.0 -9 4307 01 15 09 01 18 30 --- 13 21 24 42.7 -51.7 4.8 71.5 201 4333 01 15 01 01 19 00 J0827+5217 13 21 54 42.0 -52.0 4.9 70.4 21 4333 01 19 00 01 20 30 =0824+524 13 23 24 41.7 -51.9 4.9 70.2 90 4344 01 19 01 01 20 30 APM08279+525 13 23 24 42.4 -51.6 4.8 71.2 -9 4344 01 20 39 01 24 00 --- 13 26 55 41.9 -51.4 4.9 70.6 201 4370 01 20 31 01 24 30 J0827+5217 13 27 25 41.2 -51.6 5.0 69.6 21 4370 01 24 30 01 26 00 =0824+524 13 28 55 41.0 -51.5 5.0 69.4 90 4382 01 24 31 01 26 00 APM08279+525 13 28 55 41.7 -51.2 4.9 70.3 -9 4382 01 26 09 01 29 30 --- 13 32 26 41.2 -51.0 5.0 69.8 201 4408 01 26 01 01 30 00 J0827+5217 13 32 56 40.4 -51.2 5.1 68.8 21 4408 01 30 00 01 31 30 =0824+524 13 34 26 40.2 -51.1 5.1 68.5 90 4419 01 30 01 01 31 30 APM08279+525 13 34 26 40.9 -50.8 5.0 69.5 -9 4419 01 31 39 01 35 00 --- 13 37 57 40.4 -50.6 5.1 68.9 201 4445 01 31 31 01 35 30 J0827+5217 13 38 27 39.6 -50.8 5.2 67.9 21 4445 01 35 30 01 37 00 =0824+524 13 39 57 39.4 -50.7 5.2 67.7 90 4457 01 35 31 01 37 00 APM08279+525 13 39 57 40.1 -50.4 5.1 68.6 -9 4457 01 37 09 01 40 30 --- 13 43 28 39.6 -50.2 5.2 68.1 201 4483 01 37 01 Schedule for VLBA_HN (Code Hn ) Page 18 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 01 41 00 J0827+5217 13 43 58 38.8 -50.4 5.2 67.1 21 4483 01 41 00 01 42 30 =0824+524 13 45 28 38.6 -50.3 5.3 66.9 90 4494 01 41 01 01 42 30 APM08279+525 13 45 28 39.3 -50.0 5.2 67.8 -9 4494 01 42 39 01 46 00 --- 13 48 59 38.8 -49.8 5.3 67.3 201 4520 01 42 31 01 46 30 J0827+5217 13 49 29 38.0 -50.0 5.3 66.3 21 4520 01 46 30 01 48 00 =0824+524 13 50 59 37.8 -49.9 5.4 66.1 90 4532 01 46 31 01 48 00 APM08279+525 13 50 59 38.5 -49.6 5.3 67.0 -9 4532 01 48 09 01 51 30 --- 13 54 30 38.1 -49.4 5.4 66.4 201 4557 01 48 01 01 52 00 J0827+5217 13 55 00 37.3 -49.5 5.4 65.5 21 4557 01 52 00 01 53 30 =0824+524 13 56 30 37.1 -49.4 5.5 65.2 90 4569 01 52 01 01 53 30 APM08279+525 13 56 30 37.8 -49.2 5.4 66.1 -9 4569 01 53 39 01 57 00 --- 14 00 00 37.3 -48.9 5.4 65.6 201 4595 01 53 31 01 57 30 J0827+5217 14 00 31 36.5 -49.1 5.5 64.6 21 4595 01 57 30 01 59 00 =0824+524 14 02 01 36.3 -49.0 5.5 64.4 90 4607 01 57 31 01 59 00 APM08279+525 14 02 01 37.0 -48.8 5.5 65.3 -9 4607 01 59 09 02 02 30 --- 14 05 31 36.5 -48.5 5.5 64.8 201 4632 01 59 01 02 03 00 J0827+5217 14 06 01 35.7 -48.6 5.6 63.8 21 4632 02 03 00 02 04 30 =0824+524 14 07 32 35.5 -48.5 5.6 63.6 90 4644 02 03 01 02 04 30 APM08279+525 14 07 32 36.3 -48.3 5.6 64.5 -9 4644 02 04 39 02 08 00 --- 14 11 02 35.8 -48.0 5.6 63.9 201 4670 02 04 31 02 08 30 J0827+5217 14 11 32 35.0 -48.2 5.7 63.0 21 4670 02 08 30 02 10 00 =0824+524 14 13 03 34.8 -48.1 5.7 62.8 90 4682 02 08 31 02 10 00 APM08279+525 14 13 03 35.5 -47.9 5.7 63.6 -9 4682 02 10 09 02 13 30 --- 14 16 33 35.0 -47.6 5.7 63.1 201 4707 02 10 01 02 14 00 J0827+5217 14 17 03 34.2 -47.7 5.8 62.2 21 4707 02 14 00 02 15 30 =0824+524 14 18 34 34.0 -47.6 5.8 61.9 90 4719 02 14 01 02 15 30 APM08279+525 14 18 34 34.8 -47.4 5.8 62.8 -9 4719 02 15 39 02 19 00 --- 14 22 04 34.3 -47.1 5.8 62.3 201 4745 02 15 31 02 19 30 J0827+5217 14 22 34 33.5 -47.2 5.9 61.3 21 4745 02 19 30 02 21 00 =0824+524 14 24 04 33.3 -47.1 5.9 61.1 90 4757 02 19 31 Schedule for VLBA_HN (Code Hn ) Page 19 Resolving extreme star formation and AGN activity in a high redshift qua UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 02 21 00 APM08279+525 14 24 04 34.0 -47.0 5.8 62.0 -9 4757 02 21 09 02 24 30 --- 14 27 35 33.6 -46.6 5.9 61.4 201 4782 02 21 01 02 25 00 J0827+5217 14 28 05 32.8 -46.7 6.0 60.5 21 4782 02 25 00 02 26 30 =0824+524 14 29 35 32.6 -46.6 6.0 60.3 90 4794 02 25 01 02 26 30 APM08279+525 14 29 35 33.3 -46.5 5.9 61.1 -9 4794 02 26 39 02 30 00 --- 14 33 06 32.8 -46.2 6.0 60.6 201 4820 02 26 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess221.L1024glob Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat: v20cm_2 FD filtered above 1760. SC filtered above 1740. Setup group: 2 Station: VLBA_HN Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: RDBE_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U U U U U IF SB = L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= L L L L L L L L IF = A C A C A C A C VLBA FE= 20cm omit 20cm omit VLBA Synth= 14.6 2.4 14.6 The following frequency sets based on these setups were used. See the crd files for VLBA legacy system setups and pcal detection details. Frequency Set: 20 Setup file default. Used with PCAL = off LO sum= 1594.00 1594.00 1626.00 1626.00 1658.00 1658.00 1690.00 1690.00 BBC fr= 806.00 806.00 774.00 774.00 742.00 742.00 710.00 710.00 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 VLBA legacy crd files using 4 channels based on RDBE channels: 3 4 5 6 CRD fr= 766.00 766.00 734.00 734.00 CRD bw= 16.00 16.00 16.00 16.00 Matching frequency sets: 20 21 22 23 24 25 26 27 28 29 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * APM08279+525 08 27 58.009421 * 08 31 41.709536 08 33 14.545864 0.00 52 55 26.95765 * 52 45 17.62034 52 41 10.34807 0.00 From catalog imbedded in main SCHED input file. 0824+524 08 24 10.281445 * 08 27 53.698140 08 29 26.407262 0.19 * J0827+5217 52 27 54.37285 * 52 17 58.29635 52 13 56.35400 0.11 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc2016 GSFC 2016a X/S astro solution, 124 observations. * 4C39.25 09 23 55.319216 * 09 27 03.013937 09 28 21.410343 0.31 J0927+3902 39 15 23.56644 * 39 02 20.85185 38 56 59.61195 0.16 0923+392 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc2016 J0927+39 GSFC 2016a X/S astro solution, 250526 observations. SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Setup file Frequency sets Observing hours (duplicates not shown) Scan Baseline APM08279+52sess221.L1024glob 1 2 3 4 5 6 7 8 9 10 13 14 + 9.733 2076.703 J0827+5217 sess221.L1024glob 1 2 3 4 5 6 7 8 9 10 13 14 + 4.408 905.031 4C39.25 sess221.L1024glob 1 2 3 4 5 6 7 8 9 10 13 14 + 0.333 66.763 EFFECT OF SOLAR CORONA The solar corona can cause unstable phases for sources too close to the Sun. SCHED provides warnings at individual scans for distances less than 10 degrees. The distance from the Sun to each source in this schedule is: Source Sun distance (deg) APM08279+525 52.1 J0827+5217 51.5 4C39.25 61.0 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg