COVER INFORMATION Station: WSTRBORK (Code Wb ) Experiment: The origin of the radio jets in the young radio galaxy 4C 52.37 Exp. Code: ES090B Schedule Version: 1.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Robert Schulz Address: ASTRON Oude Hoogeveensedijk 4 7991 PD Dwingeloo The Netherlands Phone: 0031-521-595-755 EMAIL: schulz@astron.nl Fax: Phone during observation: 0031-521-595-755 Observing mode: Continuum Notes: Target: 4C52.37 Fringe finder,bandpass calibrator: J1638+5720 Phase-reference source: J1549+5038 Schedule for WSTRBORK (Code Wb ) Page 2 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- Next scan frequencies: 8384.49 8384.49 8416.49 8416.49 8448.49 8448.49 8480.49 8480.49 Next BBC frequencies: 287.49 287.49 319.49 319.49 351.49 351.49 383.49 383.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 06 52 30 J1549+5038 09 49 07 38.0 53.6 -6.0 D 0.0 0 0 06 52 30 06 54 00 =1547+507 09 50 38 38.1 53.8 -6.0 0.0 0 6 06 52 31 06 58 00 J1549+5038 09 54 38 38.6 54.4 -5.9 0.0 229 6 06 58 00 06 59 30 =1547+507 09 56 08 38.8 54.6 -5.9 0.0 90 12 06 58 01 07 03 30 J1549+5038 10 00 09 39.3 55.1 -5.8 0.0 229 12 07 03 30 07 05 00 =1547+507 10 01 39 39.5 55.3 -5.8 0.0 90 17 07 03 31 07 05 30 4C52.37 10 02 09 39.3 51.5 -6.0 D 0.0 8 17 07 05 30 07 08 30 --- 10 05 10 39.6 51.9 -6.0 0.0 0 29 07 05 31 07 09 00 J1549+5038 10 05 40 40.0 55.8 -5.7 0.0 6 29 07 09 00 07 10 30 =1547+507 10 07 10 40.2 56.0 -5.7 0.0 90 35 07 09 01 07 11 00 4C52.37 10 07 40 39.9 52.2 -5.9 0.0 6 35 07 11 00 07 14 00 --- 10 10 41 40.3 52.6 -5.9 0.0 180 46 07 11 01 07 14 30 J1549+5038 10 11 11 40.7 56.5 -5.6 0.0 6 46 07 14 30 07 16 00 =1547+507 10 12 41 40.9 56.7 -5.6 0.0 90 52 07 14 31 07 16 30 4C52.37 10 13 11 40.6 52.9 -5.8 0.0 6 52 07 16 30 07 19 30 --- 10 16 12 40.9 53.2 -5.8 0.0 180 64 07 16 31 07 20 00 J1549+5038 10 16 42 41.4 57.2 -5.6 0.0 6 64 07 20 00 07 21 30 =1547+507 10 18 12 41.6 57.4 -5.5 0.0 90 70 07 20 01 07 28 00 J1549+5038 10 24 43 42.4 58.2 -5.4 0.0 379 70 07 28 00 07 29 30 =1547+507 10 26 13 42.6 58.4 -5.4 0.0 90 75 07 28 01 07 30 00 4C52.37 10 26 43 42.2 54.5 -5.6 0.0 6 75 07 30 00 07 33 00 --- 10 29 44 42.6 54.9 -5.6 0.0 180 87 07 30 01 07 33 30 J1549+5038 10 30 14 43.1 58.9 -5.3 0.0 6 87 07 33 30 07 35 00 =1547+507 10 31 44 43.3 59.1 -5.3 0.0 90 93 07 33 31 07 35 30 4C52.37 10 32 14 42.9 55.2 -5.5 0.0 6 93 07 35 30 07 38 30 --- 10 35 15 43.3 55.5 -5.5 0.0 180 104 07 35 31 07 39 00 J1549+5038 10 35 45 43.8 59.6 -5.2 0.0 6 104 07 39 00 07 40 30 =1547+507 10 37 15 44.0 59.8 -5.2 0.0 90 110 07 39 01 Schedule for WSTRBORK (Code Wb ) Page 3 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- 07 41 00 4C52.37 10 37 45 43.6 55.8 -5.4 0.0 6 110 07 41 00 07 44 00 --- 10 40 46 44.0 56.2 -5.4 0.0 180 122 07 41 01 07 44 30 J1549+5038 10 41 16 44.6 60.3 -5.1 0.0 6 122 07 44 30 07 46 00 =1547+507 10 42 46 44.8 60.5 -5.1 0.0 90 128 07 44 31 07 46 30 4C52.37 10 43 16 44.3 56.5 -5.3 0.0 6 128 07 46 30 07 49 30 --- 10 46 17 44.6 56.8 -5.3 0.0 180 139 07 46 31 07 50 00 J1549+5038 10 46 47 45.3 61.0 -5.1 0.0 6 139 07 50 00 07 51 30 =1547+507 10 48 17 45.5 61.2 -5.0 0.0 90 145 07 50 01 07 52 00 4C52.37 10 48 47 45.0 57.1 -5.2 0.0 6 145 07 52 00 07 55 00 --- 10 51 48 45.3 57.5 -5.2 0.0 180 157 07 52 01 07 55 30 J1549+5038 10 52 18 46.0 61.7 -5.0 0.0 6 157 07 55 30 07 57 00 =1547+507 10 53 48 46.2 61.9 -4.9 0.0 90 162 07 55 31 07 57 30 4C52.37 10 54 18 45.7 57.8 -5.1 0.0 6 162 07 57 30 08 00 30 --- 10 57 18 46.1 58.1 -5.1 0.0 180 174 07 57 31 08 01 00 J1549+5038 10 57 49 46.7 62.4 -4.9 0.0 6 174 08 01 00 08 02 30 =1547+507 10 59 19 46.9 62.6 -4.8 0.0 90 180 08 01 01 08 03 00 4C52.37 10 59 49 46.4 58.4 -5.1 0.0 6 180 08 03 00 08 06 00 --- 11 02 49 46.8 58.8 -5.0 0.0 180 191 08 03 01 08 06 30 J1549+5038 11 03 19 47.5 63.1 -4.8 0.0 6 191 08 06 30 08 08 00 =1547+507 11 04 50 47.7 63.3 -4.7 0.0 90 197 08 06 31 08 08 30 4C52.37 11 05 20 47.1 59.1 -5.0 0.0 6 197 08 08 30 08 11 30 --- 11 08 20 47.5 59.4 -4.9 0.0 180 209 08 08 31 08 12 00 J1549+5038 11 08 50 48.2 63.8 -4.7 0.0 6 209 08 12 00 08 13 30 =1547+507 11 10 21 48.4 63.9 -4.7 0.0 90 214 08 12 01 08 14 00 4C52.37 11 10 51 47.8 59.7 -4.9 0.0 6 214 08 14 00 08 17 00 --- 11 13 51 48.2 60.0 -4.8 0.0 180 226 08 14 01 08 17 30 J1549+5038 11 14 21 49.0 64.4 -4.6 0.0 6 226 08 17 30 08 19 00 =1547+507 11 15 51 49.2 64.6 -4.6 0.0 90 232 08 17 31 08 19 30 4C52.37 11 16 22 48.5 60.3 -4.8 0.0 6 232 08 19 30 08 22 30 --- 11 19 22 48.9 60.7 -4.7 0.0 180 243 08 19 31 Schedule for WSTRBORK (Code Wb ) Page 4 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- 08 23 00 J1549+5038 11 19 52 49.7 65.1 -4.5 0.0 6 243 08 23 00 08 24 30 =1547+507 11 21 22 49.9 65.3 -4.5 0.0 90 249 08 23 01 08 25 00 4C52.37 11 21 52 49.2 61.0 -4.7 0.0 6 249 08 25 00 08 28 00 --- 11 24 53 49.6 61.3 -4.6 0.0 180 261 08 25 01 08 28 30 J1549+5038 11 25 23 50.5 65.8 -4.4 0.0 6 261 08 28 30 08 30 00 =1547+507 11 26 53 50.7 66.0 -4.4 0.0 90 267 08 28 31 08 30 30 4C52.37 11 27 23 50.0 61.6 -4.6 0.0 6 267 08 30 30 08 33 30 --- 11 30 24 50.4 61.9 -4.5 0.0 180 278 08 30 31 08 34 00 J1549+5038 11 30 54 51.2 66.5 -4.3 0.0 6 278 08 34 00 08 35 30 =1547+507 11 32 24 51.5 66.7 -4.3 0.0 90 284 08 34 01 08 36 00 4C52.37 11 32 54 50.7 62.2 -4.5 0.0 6 284 08 36 00 08 39 00 --- 11 35 55 51.1 62.6 -4.5 0.0 180 296 08 36 01 08 39 30 J1549+5038 11 36 25 52.0 67.2 -4.2 0.0 6 296 08 39 30 08 41 00 =1547+507 11 37 55 52.2 67.4 -4.2 0.0 90 301 08 39 31 08 41 30 4C52.37 11 38 25 51.4 62.9 -4.4 0.0 6 301 08 41 30 08 44 30 --- 11 41 26 51.8 63.2 -4.4 0.0 180 313 08 41 31 08 45 00 J1549+5038 11 41 56 52.8 67.9 -4.1 0.0 6 313 08 45 00 08 46 30 =1547+507 11 43 26 53.0 68.1 -4.1 0.0 90 319 08 45 01 08 47 00 4C52.37 11 43 56 52.2 63.5 -4.3 0.0 6 319 08 47 00 08 50 00 --- 11 46 57 52.6 63.8 -4.3 0.0 180 330 08 47 01 08 50 30 J1549+5038 11 47 27 53.5 68.6 -4.0 0.0 6 330 08 50 30 08 52 00 =1547+507 11 48 57 53.8 68.8 -4.0 0.0 90 336 08 50 31 08 52 30 4C52.37 11 49 27 52.9 64.1 -4.2 0.0 6 336 08 52 30 08 55 30 --- 11 52 27 53.3 64.4 -4.2 0.0 180 348 08 52 31 08 56 00 J1549+5038 11 52 58 54.3 69.3 -3.9 0.0 6 348 08 56 00 08 57 30 =1547+507 11 54 28 54.5 69.5 -3.9 0.0 90 354 08 56 01 08 58 00 4C52.37 11 54 58 53.7 64.7 -4.1 0.0 6 354 08 58 00 09 01 00 --- 11 57 58 54.1 65.0 -4.1 0.0 180 365 08 58 01 09 01 30 J1549+5038 11 58 28 55.1 70.0 -3.9 0.0 6 365 09 01 30 09 03 00 =1547+507 11 59 59 55.3 70.1 -3.8 0.0 90 371 09 01 31 Schedule for WSTRBORK (Code Wb ) Page 5 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- 09 03 30 4C52.37 12 00 29 54.4 65.3 -4.0 0.0 6 371 09 03 30 09 06 30 --- 12 03 29 54.8 65.7 -4.0 0.0 180 383 09 03 31 09 07 00 J1549+5038 12 03 59 55.9 70.6 -3.8 0.0 6 383 09 07 00 09 08 30 =1547+507 12 05 30 56.1 70.8 -3.7 0.0 90 388 09 07 01 09 09 00 4C52.37 12 06 00 55.2 65.9 -4.0 0.0 6 388 09 09 00 09 12 00 --- 12 09 00 55.6 66.3 -3.9 0.0 180 400 09 09 01 09 12 30 J1549+5038 12 09 30 56.7 71.3 -3.7 0.0 6 400 09 12 30 09 14 00 =1547+507 12 11 01 56.9 71.5 -3.6 0.0 90 406 09 12 31 09 14 30 4C52.37 12 11 31 56.0 66.6 -3.9 0.0 6 406 09 14 30 09 17 30 --- 12 14 31 56.4 66.9 -3.8 0.0 180 417 09 14 31 09 18 00 J1549+5038 12 15 01 57.5 72.0 -3.6 0.0 6 417 09 18 00 09 19 30 =1547+507 12 16 31 57.7 72.2 -3.6 0.0 90 423 09 18 01 09 20 00 4C52.37 12 17 02 56.7 67.2 -3.8 0.0 6 423 09 20 00 09 23 00 --- 12 20 02 57.1 67.5 -3.7 0.0 180 435 09 20 01 09 23 30 J1549+5038 12 20 32 58.3 72.7 -3.5 0.0 6 435 09 23 30 09 25 00 =1547+507 12 22 02 58.5 72.9 -3.5 0.0 90 441 09 23 31 09 25 30 4C52.37 12 22 32 57.5 67.8 -3.7 0.0 6 441 09 25 30 09 28 30 --- 12 25 33 57.9 68.1 -3.6 0.0 180 452 09 25 31 09 29 00 J1549+5038 12 26 03 59.0 73.4 -3.4 0.0 6 452 09 29 00 09 30 30 =1547+507 12 27 33 59.3 73.6 -3.4 0.0 90 458 09 29 01 09 31 00 4C52.37 12 28 03 58.3 68.4 -3.6 0.0 6 458 09 31 00 09 34 00 --- 12 31 04 58.7 68.7 -3.5 0.0 180 470 09 31 01 09 34 30 J1549+5038 12 31 34 59.8 74.1 -3.3 0.0 6 470 09 34 30 09 36 00 =1547+507 12 33 04 60.1 74.3 -3.3 0.0 90 475 09 34 31 09 36 30 4C52.37 12 33 34 59.0 69.0 -3.5 0.0 6 475 09 36 30 09 39 30 --- 12 36 35 59.5 69.3 -3.4 0.0 180 487 09 36 31 09 40 00 J1549+5038 12 37 05 60.6 74.9 -3.2 0.0 6 487 09 40 00 09 41 30 =1547+507 12 38 35 60.9 75.1 -3.2 0.0 90 493 09 40 01 09 42 00 4C52.37 12 39 05 59.8 69.6 -3.4 0.0 6 493 09 42 00 09 45 00 --- 12 42 06 60.2 69.9 -3.4 0.0 180 504 09 42 01 Schedule for WSTRBORK (Code Wb ) Page 6 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- 09 45 30 J1549+5038 12 42 36 61.5 75.6 -3.1 0.0 6 504 09 45 30 09 47 00 =1547+507 12 44 06 61.7 75.8 -3.1 0.0 90 510 09 45 31 09 47 30 4C52.37 12 44 36 60.6 70.2 -3.3 0.0 6 510 09 47 30 09 50 30 --- 12 47 37 61.0 70.5 -3.3 0.0 180 522 09 47 31 09 51 00 J1549+5038 12 48 07 62.3 76.3 -3.0 0.0 6 522 09 51 00 09 52 30 =1547+507 12 49 37 62.5 76.5 -3.0 0.0 90 528 09 51 01 09 53 00 4C52.37 12 50 07 61.4 70.8 -3.2 0.0 6 528 09 53 00 09 56 00 --- 12 53 07 61.8 71.1 -3.2 0.0 180 539 09 53 01 09 56 30 J1549+5038 12 53 38 63.1 77.0 -2.9 0.0 6 539 09 56 30 09 58 00 =1547+507 12 55 08 63.3 77.2 -2.9 0.0 90 545 09 56 31 09 58 30 4C52.37 12 55 38 62.2 71.4 -3.1 0.0 6 545 09 58 30 10 01 30 --- 12 58 38 62.6 71.7 -3.1 0.0 180 556 09 58 31 10 02 00 J1549+5038 12 59 08 63.9 77.8 -2.8 0.0 6 556 10 02 00 10 03 30 =1547+507 13 00 39 64.1 78.0 -2.8 0.0 90 562 10 02 01 10 04 00 4C52.37 13 01 09 62.9 72.0 -3.0 0.0 6 562 10 04 00 10 07 00 --- 13 04 09 63.4 72.3 -3.0 0.0 180 574 10 04 01 10 07 30 J1549+5038 13 04 39 64.7 78.5 -2.8 0.0 6 574 10 07 30 10 09 00 =1547+507 13 06 10 64.9 78.7 -2.7 0.0 90 580 10 07 31 10 09 30 4C52.37 13 06 40 63.7 72.6 -2.9 0.0 6 580 10 09 30 10 12 30 --- 13 09 40 64.2 72.9 -2.9 0.0 180 591 10 09 31 10 13 00 J1549+5038 13 10 10 65.5 79.3 -2.7 0.0 6 591 10 13 00 10 14 30 =1547+507 13 11 40 65.7 79.5 -2.6 0.0 90 597 10 13 01 10 15 00 4C52.37 13 12 11 64.5 73.2 -2.9 0.0 6 597 10 15 00 10 18 00 --- 13 15 11 65.0 73.5 -2.8 0.0 180 609 10 15 01 10 18 30 J1549+5038 13 15 41 66.3 80.0 -2.6 0.0 6 609 10 18 30 10 20 00 =1547+507 13 17 11 66.5 80.2 -2.5 0.0 90 614 10 18 31 10 20 30 4C52.37 13 17 41 65.3 73.8 -2.8 0.0 6 614 10 20 30 10 23 30 --- 13 20 42 65.8 74.1 -2.7 0.0 180 626 10 20 31 10 24 00 J1549+5038 13 21 12 67.1 80.8 -2.5 0.0 6 626 10 24 00 10 25 30 =1547+507 13 22 42 67.4 81.0 -2.5 0.0 90 632 10 24 01 Schedule for WSTRBORK (Code Wb ) Page 7 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- 10 26 00 4C52.37 13 23 12 66.1 74.4 -2.7 0.0 6 632 10 26 00 10 29 00 --- 13 26 13 66.6 74.7 -2.6 0.0 180 643 10 26 01 10 29 30 J1549+5038 13 26 43 68.0 81.6 -2.4 0.0 6 643 10 29 30 10 31 00 =1547+507 13 28 13 68.2 81.8 -2.4 0.0 90 649 10 29 31 10 31 30 4C52.37 13 28 43 66.9 74.9 -2.6 0.0 6 649 10 31 30 10 34 30 --- 13 31 44 67.4 75.3 -2.5 0.0 180 661 10 31 31 10 35 00 J1549+5038 13 32 14 68.8 82.4 -2.3 0.0 6 661 10 35 00 10 36 30 =1547+507 13 33 44 69.0 82.6 -2.3 0.0 90 667 10 35 01 10 37 00 4C52.37 13 34 14 67.7 75.5 -2.5 0.0 6 667 10 37 00 10 40 00 --- 13 37 15 68.2 75.9 -2.4 0.0 180 678 10 37 01 10 40 30 J1549+5038 13 37 45 69.6 83.2 -2.2 0.0 6 678 10 40 30 10 42 00 =1547+507 13 39 15 69.8 83.5 -2.2 0.0 90 684 10 40 31 10 42 30 4C52.37 13 39 45 68.5 76.1 -2.4 0.0 6 684 10 42 30 10 45 30 --- 13 42 46 69.0 76.5 -2.3 0.0 180 696 10 42 31 10 46 00 J1549+5038 13 43 16 70.4 84.1 -2.1 0.0 6 696 10 46 00 10 47 30 =1547+507 13 44 46 70.7 84.3 -2.1 0.0 90 701 10 46 01 10 48 00 4C52.37 13 45 16 69.4 76.7 -2.3 0.0 6 701 10 48 00 10 51 00 --- 13 48 16 69.8 77.0 -2.2 0.0 180 713 10 48 01 10 51 30 J1549+5038 13 48 47 71.3 84.9 -2.0 0.0 6 713 10 51 30 10 53 00 =1547+507 13 50 17 71.5 85.2 -2.0 0.0 90 719 10 51 31 10 53 30 4C52.37 13 50 47 70.2 77.3 -2.2 0.0 6 719 10 53 30 10 56 30 --- 13 53 47 70.6 77.6 -2.2 0.0 180 730 10 53 31 10 57 00 J1549+5038 13 54 17 72.1 85.8 -1.9 0.0 6 730 10 57 00 10 58 30 =1547+507 13 55 48 72.3 86.1 -1.9 0.0 90 736 10 57 01 10 59 00 4C52.37 13 56 18 71.0 77.9 -2.1 0.0 6 736 10 59 00 11 02 00 --- 13 59 18 71.4 78.2 -2.1 0.0 180 748 10 59 01 11 02 30 J1549+5038 13 59 48 72.9 86.8 -1.8 0.0 6 748 11 02 30 11 04 00 =1547+507 14 01 19 73.2 87.0 -1.8 0.0 90 754 11 02 31 11 04 30 4C52.37 14 01 49 71.8 78.5 -2.0 0.0 6 754 11 04 30 11 07 30 --- 14 04 49 72.2 78.8 -2.0 0.0 180 765 11 04 31 Schedule for WSTRBORK (Code Wb ) Page 8 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- 11 08 00 J1549+5038 14 05 19 73.8 87.7 -1.7 0.0 6 765 11 08 00 11 09 30 =1547+507 14 06 50 74.0 88.0 -1.7 0.0 90 771 11 08 01 11 10 00 4C52.37 14 07 20 72.6 79.1 -1.9 0.0 6 771 11 10 00 11 13 00 --- 14 10 20 73.0 79.4 -1.9 0.0 180 783 11 10 01 11 13 30 J1549+5038 14 10 50 74.6 88.8 -1.6 0.0 6 783 11 13 30 11 15 00 =1547+507 14 12 20 74.8 89.0 -1.6 0.0 90 788 11 13 31 11 15 30 4C52.37 14 12 50 73.4 79.7 -1.8 0.0 6 788 11 15 30 11 18 30 --- 14 15 51 73.9 80.0 -1.8 0.0 180 800 11 15 31 11 19 00 J1549+5038 14 16 21 75.4 89.8 -1.6 0.0 6 800 11 19 00 11 20 30 =1547+507 14 17 51 75.6 90.1 -1.5 0.0 90 806 11 19 01 11 21 00 4C52.37 14 18 21 74.2 80.3 -1.7 0.0 6 806 11 21 00 11 24 00 --- 14 21 22 74.7 80.6 -1.7 0.0 180 817 11 21 01 11 24 30 J1549+5038 14 21 52 76.3 90.9 -1.5 0.0 6 817 11 24 30 11 26 00 =1547+507 14 23 22 76.5 91.3 -1.4 0.0 90 823 11 24 31 11 26 30 4C52.37 14 23 52 75.1 80.9 -1.7 0.0 6 823 11 26 30 11 29 30 --- 14 26 53 75.5 81.2 -1.6 0.0 180 835 11 26 31 11 30 00 J1549+5038 14 27 23 77.1 92.1 -1.4 0.0 6 835 11 30 00 11 31 30 =1547+507 14 28 53 77.3 92.5 -1.3 0.0 90 841 11 30 01 11 32 00 4C52.37 14 29 23 75.9 81.5 -1.6 0.0 6 841 11 32 00 11 35 00 --- 14 32 24 76.3 81.9 -1.5 0.0 180 852 11 32 01 11 35 30 J1549+5038 14 32 54 77.9 93.4 -1.3 0.0 6 852 11 35 30 11 37 00 =1547+507 14 34 24 78.1 93.8 -1.3 0.0 90 858 11 35 31 11 37 30 4C52.37 14 34 54 76.7 82.1 -1.5 0.0 6 858 11 37 30 11 40 30 --- 14 37 55 77.2 82.5 -1.4 0.0 180 870 11 37 31 11 41 00 J1549+5038 14 38 25 78.7 94.8 -1.2 0.0 6 870 11 41 00 11 42 30 =1547+507 14 39 55 79.0 95.2 -1.2 0.0 90 875 11 41 01 11 43 00 4C52.37 14 40 25 77.5 82.8 -1.4 0.0 6 875 11 43 00 11 46 00 --- 14 43 26 78.0 83.1 -1.3 0.0 180 887 11 43 01 11 46 30 J1549+5038 14 43 56 79.6 96.3 -1.1 0.0 6 887 11 46 30 11 48 00 =1547+507 14 45 26 79.8 96.8 -1.1 0.0 90 893 11 46 31 Schedule for WSTRBORK (Code Wb ) Page 9 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- 11 48 30 4C52.37 14 45 56 78.4 83.4 -1.3 0.0 6 893 11 48 30 11 51 30 --- 14 48 56 78.8 83.7 -1.2 0.0 180 904 11 48 31 11 52 00 J1549+5038 14 49 26 80.4 98.0 -1.0 0.0 6 904 11 52 00 11 53 30 =1547+507 14 50 57 80.6 98.5 -1.0 0.0 90 910 11 52 01 11 54 00 4C52.37 14 51 27 79.2 84.0 -1.2 0.0 6 910 11 54 00 11 57 00 --- 14 54 27 79.6 84.4 -1.1 0.0 180 922 11 54 01 11 57 30 J1549+5038 14 54 57 81.2 99.9 -0.9 0.0 6 922 11 57 30 11 59 00 =1547+507 14 56 28 81.4 100.5 -0.9 0.0 90 927 11 57 31 11 59 30 4C52.37 14 56 58 80.0 84.7 -1.1 0.0 6 927 11 59 30 12 02 30 --- 14 59 58 80.5 85.1 -1.1 0.0 180 939 11 59 31 12 03 00 J1549+5038 15 00 28 82.0 102.1 -0.8 0.0 6 939 12 03 00 12 04 30 =1547+507 15 01 59 82.3 102.7 -0.8 0.0 90 945 12 03 01 12 05 00 4C52.37 15 02 29 80.8 85.4 -1.0 0.0 6 945 12 05 00 12 08 00 --- 15 05 29 81.3 85.7 -1.0 0.0 180 956 12 05 01 12 08 30 J1549+5038 15 05 59 82.8 104.6 -0.7 0.0 6 956 12 08 30 12 10 00 =1547+507 15 07 29 83.1 105.4 -0.7 0.0 90 962 12 08 31 12 10 30 4C52.37 15 08 00 81.7 86.1 -0.9 0.0 6 962 12 10 30 12 13 30 --- 15 11 00 82.1 86.4 -0.9 0.0 180 974 12 10 31 12 14 00 J1549+5038 15 11 30 83.6 107.7 -0.6 0.0 6 974 12 14 00 12 15 30 =1547+507 15 13 00 83.9 108.6 -0.6 0.0 90 980 12 14 01 12 16 00 4C52.37 15 13 30 82.5 86.8 -0.8 0.0 6 980 12 16 00 12 19 00 --- 15 16 31 82.9 87.2 -0.8 0.0 180 991 12 16 01 12 19 30 J1549+5038 15 17 01 84.4 111.4 -0.5 0.0 6 991 12 19 30 12 21 00 =1547+507 15 18 31 84.6 112.6 -0.5 0.0 90 997 12 19 31 12 21 30 4C52.37 15 19 01 83.3 87.6 -0.7 0.0 6 997 12 21 30 12 24 30 --- 15 22 02 83.8 88.0 -0.7 0.0 180 1009 12 21 31 12 25 00 J1549+5038 15 22 32 85.2 116.2 -0.5 0.0 6 1009 12 25 00 12 26 30 =1547+507 15 24 02 85.4 117.8 -0.4 0.0 90 1014 12 25 01 12 27 00 4C52.37 15 24 32 84.2 88.4 -0.6 0.0 6 1014 12 27 00 12 30 00 --- 15 27 33 84.6 88.9 -0.6 0.0 180 1026 12 27 01 Schedule for WSTRBORK (Code Wb ) Page 10 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- 12 30 30 J1549+5038 15 28 03 85.9 122.6 -0.4 0.0 6 1026 12 30 30 12 32 00 =1547+507 15 29 33 86.1 124.7 -0.3 0.0 90 1032 12 30 31 12 32 30 4C52.37 15 30 03 85.0 89.3 -0.6 0.0 6 1032 12 32 30 12 35 30 --- 15 33 04 85.4 89.9 -0.5 0.0 180 1043 12 32 31 12 36 00 J1549+5038 15 33 34 86.6 131.3 -0.3 0.0 6 1043 12 36 00 12 37 30 =1547+507 15 35 04 86.7 134.2 -0.2 0.0 90 1049 12 36 01 12 38 00 4C52.37 15 35 34 85.8 90.4 -0.5 0.0 6 1049 12 38 00 12 41 00 --- 15 38 35 86.3 91.1 -0.4 0.0 180 1061 12 38 01 12 41 30 J1549+5038 15 39 05 87.1 143.6 -0.2 0.0 6 1061 12 41 30 12 43 00 =1547+507 15 40 35 87.3 147.7 -0.2 0.0 90 1067 12 41 31 12 43 30 4C52.37 15 41 05 86.6 91.7 -0.4 0.0 6 1067 12 43 30 12 46 30 --- 15 44 05 87.1 92.6 -0.3 0.0 180 1078 12 43 31 12 47 00 J1549+5038 15 44 36 87.5 160.5 -0.1 0.0 6 1078 12 47 00 12 48 30 =1547+507 15 46 06 87.6 165.9 -0.1 0.0 90 1084 12 47 01 12 49 00 4C52.37 15 46 36 87.5 93.5 -0.3 0.0 6 1084 12 49 00 12 52 00 --- 15 49 36 87.9 95.0 -0.2 0.0 180 1096 12 49 01 12 52 30 J1549+5038 15 50 06 87.7 181.3 0.0 0.0 6 1096 12 52 30 12 54 00 =1547+507 15 51 37 87.7 187.1 0.0 0.0 90 1101 12 52 31 12 54 30 4C52.37 15 52 07 88.3 96.7 -0.2 0.0 6 1101 12 54 30 12 57 30 --- 15 55 07 88.8 99.8 -0.1 0.0 180 1113 12 54 31 12 58 00 J1549+5038 15 55 37 87.5 201.8 0.1 0.0 6 1113 12 58 00 12 59 30 =1547+507 15 57 08 87.4 206.7 0.1 0.0 90 1119 12 58 01 13 00 00 J1638+5720 15 57 38 82.7 49.0 -0.7 0.0 -23 1119 13 00 00 13 05 30 =1637+574 16 03 09 83.3 45.5 -0.6 0.0 307 1140 13 00 01 13 06 00 J1549+5038 16 03 39 86.8 224.0 0.2 0.0 -24 1140 13 06 00 13 07 30 =1547+507 16 05 09 86.7 227.1 0.3 0.0 66 1146 13 06 01 13 08 00 4C52.37 16 05 39 89.6 238.4 0.0 0.0 6 1146 13 08 00 13 11 00 --- 16 08 39 89.1 255.0 0.1 0.0 180 1157 13 08 01 13 11 30 J1549+5038 16 09 10 86.2 234.1 0.3 0.0 6 1157 13 11 30 13 13 00 =1547+507 16 10 40 86.0 236.3 0.3 0.0 90 1163 13 11 31 Schedule for WSTRBORK (Code Wb ) Page 11 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- 13 13 30 4C52.37 16 11 10 88.8 260.0 0.1 0.0 6 1163 13 13 30 13 16 30 --- 16 14 10 88.3 263.2 0.2 0.0 180 1175 13 13 31 13 17 00 J1549+5038 16 14 40 85.5 241.3 0.4 0.0 6 1175 13 17 00 13 18 30 =1547+507 16 16 11 85.3 242.9 0.4 0.0 90 1181 13 17 01 13 19 00 4C52.37 16 16 41 88.0 264.9 0.2 0.0 6 1181 13 19 00 13 22 00 --- 16 19 41 87.5 266.4 0.3 0.0 180 1192 13 19 01 13 22 30 J1549+5038 16 20 11 84.8 246.7 0.5 0.0 6 1192 13 22 30 13 24 00 =1547+507 16 21 42 84.5 247.9 0.5 0.0 90 1198 13 22 31 13 24 30 4C52.37 16 22 12 87.1 267.3 0.3 0.0 6 1198 13 24 30 13 27 30 --- 16 25 12 86.7 268.3 0.4 0.0 180 1210 13 24 31 13 28 00 J1549+5038 16 25 42 84.0 250.8 0.6 0.0 6 1210 13 28 00 13 29 30 =1547+507 16 27 13 83.8 251.8 0.6 0.0 90 1215 13 28 01 13 30 00 4C52.37 16 27 43 86.3 268.9 0.4 0.0 6 1215 13 30 00 13 33 00 --- 16 30 43 85.8 269.6 0.5 0.0 180 1227 13 30 01 13 33 30 J1549+5038 16 31 13 83.2 254.1 0.7 0.0 6 1227 13 33 30 13 35 00 =1547+507 16 32 43 83.0 254.9 0.7 0.0 90 1233 13 33 31 13 35 30 4C52.37 16 33 13 85.5 270.1 0.5 0.0 6 1233 13 35 30 13 38 30 --- 16 36 14 85.0 270.7 0.6 0.0 180 1244 13 35 31 13 39 00 J1549+5038 16 36 44 82.4 256.9 0.8 0.0 6 1244 13 39 00 13 40 30 =1547+507 16 38 14 82.2 257.6 0.8 0.0 90 1250 13 39 01 13 41 00 4C52.37 16 38 44 84.6 271.1 0.6 0.0 6 1250 13 41 00 13 44 00 --- 16 41 45 84.2 271.6 0.6 0.0 180 1262 13 41 01 13 44 30 J1549+5038 16 42 15 81.6 259.2 0.9 0.0 6 1262 13 44 30 13 46 00 =1547+507 16 43 45 81.3 259.8 0.9 0.0 90 1268 13 44 31 13 46 30 4C52.37 16 44 15 83.8 272.0 0.7 0.0 6 1268 13 46 30 13 49 30 --- 16 47 16 83.3 272.4 0.7 0.0 180 1279 13 46 31 13 50 00 J1549+5038 16 47 46 80.7 261.2 1.0 0.0 6 1279 13 50 00 13 51 30 =1547+507 16 49 16 80.5 261.7 1.0 0.0 90 1285 13 50 01 13 52 00 4C52.37 16 49 46 83.0 272.8 0.8 0.0 6 1285 13 52 00 13 55 00 --- 16 52 47 82.5 273.2 0.8 0.0 180 1297 13 52 01 Schedule for WSTRBORK (Code Wb ) Page 12 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- 13 55 30 J1549+5038 16 53 17 79.9 263.0 1.1 0.0 6 1297 13 55 30 13 57 00 =1547+507 16 54 47 79.7 263.4 1.1 0.0 90 1302 13 55 31 13 57 30 4C52.37 16 55 17 82.1 273.5 0.9 0.0 6 1302 13 57 30 14 00 30 --- 16 58 18 81.7 273.9 0.9 0.0 180 1314 13 57 31 14 01 00 J1549+5038 16 58 48 79.1 264.6 1.2 0.0 6 1314 14 01 00 14 02 30 =1547+507 17 00 18 78.9 265.0 1.2 0.0 90 1320 14 01 01 14 03 00 4C52.37 17 00 48 81.3 274.2 1.0 0.0 6 1320 14 03 00 14 06 00 --- 17 03 48 80.9 274.6 1.0 0.0 180 1331 14 03 01 14 06 30 J1549+5038 17 04 19 78.3 266.0 1.2 0.0 6 1331 14 06 30 14 08 00 =1547+507 17 05 49 78.0 266.4 1.3 0.0 90 1337 14 06 31 14 08 30 4C52.37 17 06 19 80.5 274.9 1.1 0.0 6 1337 14 08 30 14 11 30 --- 17 09 19 80.0 275.3 1.1 0.0 180 1349 14 08 31 14 12 00 J1549+5038 17 09 49 77.4 267.3 1.3 0.0 6 1349 14 12 00 14 13 30 =1547+507 17 11 20 77.2 267.7 1.4 0.0 90 1355 14 12 01 14 14 00 4C52.37 17 11 50 79.7 275.6 1.1 0.0 6 1355 14 14 00 14 17 00 --- 17 14 50 79.2 276.0 1.2 0.0 180 1366 14 14 01 14 17 30 J1549+5038 17 15 20 76.6 268.6 1.4 0.0 6 1366 14 17 30 14 19 00 =1547+507 17 16 51 76.4 268.9 1.5 0.0 90 1372 14 17 31 14 19 30 4C52.37 17 17 21 78.8 276.2 1.2 0.0 6 1372 14 19 30 14 22 30 --- 17 20 21 78.4 276.6 1.3 0.0 180 1384 14 19 31 14 23 00 J1549+5038 17 20 51 75.8 269.7 1.5 0.0 6 1384 14 23 00 14 24 30 =1547+507 17 22 22 75.5 270.0 1.5 0.0 90 1389 14 23 01 14 25 00 4C52.37 17 22 52 78.0 276.9 1.3 0.0 6 1389 14 25 00 14 28 00 --- 17 25 52 77.5 277.2 1.4 0.0 180 1401 14 25 01 14 28 30 J1549+5038 17 26 22 74.9 270.8 1.6 0.0 6 1401 14 28 30 14 30 00 =1547+507 17 27 52 74.7 271.1 1.6 0.0 90 1407 14 28 31 14 30 30 4C52.37 17 28 23 77.2 277.5 1.4 0.0 6 1407 14 30 30 14 33 30 --- 17 31 23 76.7 277.8 1.5 0.0 180 1418 14 30 31 14 34 00 J1549+5038 17 31 53 74.1 271.8 1.7 0.0 6 1418 14 34 00 14 35 30 =1547+507 17 33 23 73.9 272.1 1.7 0.0 90 1424 14 34 01 Schedule for WSTRBORK (Code Wb ) Page 13 The origin of the radio jets in the young radio galaxy 4C 52.37 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 ---------------------------------------------------------------------------------------- --- Mon 29 Oct 2018 Day 302 --- 14 36 00 4C52.37 17 33 53 76.3 278.1 1.5 0.0 6 1424 14 36 00 14 39 00 --- 17 36 54 75.9 278.5 1.6 0.0 180 1436 14 36 01 14 39 30 J1549+5038 17 37 24 73.3 272.8 1.8 0.0 6 1436 14 39 30 14 41 00 =1547+507 17 38 54 73.1 273.1 1.8 0.0 90 1441 14 39 31 14 41 30 4C52.37 17 39 24 75.5 278.7 1.6 0.0 6 1441 14 41 30 14 44 30 --- 17 42 25 75.1 279.1 1.7 0.0 180 1453 14 41 31 14 45 00 J1549+5038 17 42 55 72.5 273.8 1.9 0.0 6 1453 14 45 00 14 46 30 =1547+507 17 44 25 72.2 274.0 1.9 0.0 90 1459 14 45 01 14 47 00 4C52.37 17 44 55 74.7 279.3 1.7 0.0 6 1459 14 47 00 14 50 00 --- 17 47 56 74.3 279.7 1.7 0.0 180 1470 14 47 01 14 50 30 J1549+5038 17 48 26 71.6 274.7 2.0 0.0 6 1470 14 50 30 14 52 00 =1547+507 17 49 56 71.4 274.9 2.0 0.0 90 1476 14 50 31 14 52 30 4C52.37 17 50 26 73.9 280.0 1.8 0.0 6 1476 14 52 30 14 55 30 --- 17 53 27 73.4 280.3 1.8 0.0 180 1488 14 52 31 14 56 00 J1549+5038 17 53 57 70.8 275.6 2.1 0.0 6 1488 14 56 00 14 57 30 =1547+507 17 55 27 70.6 275.8 2.1 0.0 90 1494 14 56 01 14 58 00 4C52.37 17 55 57 73.1 280.6 1.9 0.0 6 1494 14 58 00 15 00 00 --- 17 57 57 72.8 280.8 1.9 0.0 120 1501 14 58 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess318.SX1024 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 11 Station: WSTRBORK Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate: 32.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 8097.00 8097.00 8097.00 8097.00 8097.00 8097.00 8097.00 8097.00 Net SB= L U L U L U L U IF SB = U U U U U U U U Pol. = RCP RCP RCP RCP RCP RCP RCP RCP BBC = 1 1 2 2 3 3 4 4 BBC SB= L U L U L U L U IF = A1 A1 A1 A1 A1 A1 A1 A1 The following frequency sets based on these setups were used. Frequency Set: 12 Setup file default. Used with PCAL = off LO sum= 8384.49 8384.49 8416.49 8416.49 8448.49 8448.49 8480.49 8480.49 BBC fr= 287.49 287.49 319.49 319.49 351.49 351.49 383.49 383.49 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 12 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) * 4C52.37 16 01 29.239407 * 16 02 46.398000 16 03 12.768934 0.00 52 52 11.52704 * 52 43 58.74300 52 41 11.41594 0.00 From catalog imbedded in main SCHED input file. 1547+507 15 47 52.271618 * 15 49 17.468559 15 49 46.848002 0.03 * J1549+5038 50 47 09.25446 * 50 38 05.78817 50 34 58.84463 0.03 J1549+50 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 1479 observations. 1637+574 16 37 17.425185 * 16 38 13.456300 16 38 31.978989 0.01 * J1638+5720 57 26 15.76132 * 57 20 23.97903 57 18 31.02368 0.01 J1638+57 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 10291 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 4C52.37 sess318.SX1024 1 2 3 4 5 6 7 8 10 12 5.033 279.771 J1549+5038 sess318.SX1024 1 2 3 4 5 6 7 8 10 12 2.575 139.229 J1638+5720 sess318.SX1024 1 2 3 4 5 6 7 8 10 12 0.183 7.882 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) 4C52.37 70.2 J1549+5038 67.4 J1638+5720 76.8 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