COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: new UCD -6cm Exp. Code: EC083C Schedule Version: 3.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Juan B. Climent Address: Dpto. Astronomia, Univ. Valencia Dr. Moliner 50 E-46100 Burjassot Valencia, Spain Phone: +34 963543078 EMAIL: cliojuan@uv.es Fax: +34 963543084 Phone during observation: +34 963543078, +34629509130 Observing mode: Phase-referencing at 6cm (4096 Mb/s) Notes: Dual Pol v.3 - with correct 4Gbps mode Schedule for JODRELL1 (Code Jb ) Page 2 new UCD -6cm 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 14 Mar 2022 Day 73 --- Next scan frequencies: 4632.00 4632.00 4632.00 4632.00 4696.00 4696.00 4696.00 4696.00 4760.00 4760.00 4760.00 4760.00 4824.00 4824.00 4824.00 4824.00 4888.00 4888.00 4888.00 4888.00 4952.00 4952.00 4952.00 4952.00 5016.00 5016.00 5016.00 5016.00 5080.00 5080.00 5080.00 5080.00 Next BBC frequencies: 992.00 992.00 992.00 992.00 928.00 928.00 928.00 928.00 864.00 864.00 864.00 864.00 800.00 800.00 800.00 800.00 736.00 736.00 736.00 736.00 672.00 672.00 672.00 672.00 608.00 608.00 608.00 608.00 544.00 544.00 544.00 544.00 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 16 30 00 1226+638 03 49 52 33.0 24.1 -8.7 -33.1 0 0 16 30 00 16 34 00 --- 03 53 52 33.2 24.5 -8.6 -33.7 240 124 16 30 01 16 34 17 J1229+6335 03 54 09 33.3 24.5 -8.6 -33.8 10 124 16 34 17 16 36 17 --- 03 56 10 33.4 24.8 -8.6 -34.1 120 185 16 34 18 16 36 17 2MJ1237+6526 03 56 10 34.4 22.6 -8.7 -33.4 -24 185 No stop 16 40 17 --- 04 00 10 34.6 23.0 -8.6 -34.1 216 309 16 36 18 16 42 07 2MJ1237+6526 04 02 01 34.8 23.2 -8.6 -34.4 103 309 16 42 07 16 46 07 --- 04 06 01 35.0 23.6 -8.5 -35.1 240 433 16 42 08 16 46 07 J1229+6335 04 06 01 34.0 25.8 -8.4 -35.7 -25 433 No stop 16 47 17 --- 04 07 12 34.1 26.0 -8.4 -35.9 45 469 16 46 08 16 47 17 2MJ1237+6526 04 07 12 35.1 23.8 -8.5 -35.3 -24 469 No stop 16 51 17 --- 04 11 12 35.3 24.2 -8.5 -35.9 216 593 16 47 18 16 53 07 2MJ1237+6526 04 13 03 35.4 24.4 -8.4 -36.2 103 593 16 53 07 16 57 07 --- 04 17 03 35.7 24.8 -8.4 -36.9 240 716 16 53 08 16 57 07 J1229+6335 04 17 03 34.7 27.0 -8.2 -37.5 -25 716 No stop 16 58 17 --- 04 18 13 34.8 27.2 -8.2 -37.7 45 752 16 57 08 16 58 17 2MJ1237+6526 04 18 13 35.7 24.9 -8.3 -37.1 -25 752 No stop 17 02 17 --- 04 22 14 36.0 25.3 -8.3 -37.8 215 876 16 58 18 17 04 07 2MJ1237+6526 04 24 04 36.1 25.5 -8.2 -38.1 103 876 17 04 07 17 08 07 --- 04 28 05 36.4 25.9 -8.2 -38.8 240 1000 17 04 08 17 08 07 J1229+6335 04 28 05 35.5 28.2 -8.0 -39.3 -25 1000 No stop 17 09 17 --- 04 29 15 35.6 28.3 -8.0 -39.5 45 1036 17 08 08 Schedule for JODRELL1 (Code Jb ) Page 3 new UCD -6cm 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 14 Mar 2022 Day 73 --- 17 09 17 2MJ1237+6526 04 29 15 36.5 26.0 -8.2 -38.9 -25 1036 No stop 17 13 17 --- 04 33 16 36.7 26.4 -8.1 -39.6 215 1159 17 09 18 17 15 07 2MJ1237+6526 04 35 06 36.8 26.6 -8.1 -39.9 103 1159 17 15 07 17 19 07 --- 04 39 07 37.1 27.0 -8.0 -40.6 240 1283 17 15 08 17 19 07 J1229+6335 04 39 07 36.3 29.4 -7.9 -41.1 -25 1283 No stop 17 20 17 --- 04 40 17 36.4 29.5 -7.8 -41.3 45 1319 17 19 08 17 20 17 2MJ1237+6526 04 40 17 37.2 27.1 -8.0 -40.8 -25 1319 No stop 17 24 17 --- 04 44 18 37.5 27.5 -7.9 -41.5 215 1443 17 20 18 17 26 07 2MJ1237+6526 04 46 08 37.6 27.7 -7.9 -41.8 103 1443 17 26 07 17 30 07 --- 04 50 09 37.9 28.1 -7.8 -42.4 240 1566 17 26 08 17 30 07 J1229+6335 04 50 09 37.1 30.5 -7.7 -42.9 -25 1566 No stop 17 31 17 --- 04 51 19 37.2 30.6 -7.6 -43.1 45 1603 17 30 08 17 31 17 2MJ1237+6526 04 51 19 38.0 28.2 -7.8 -42.6 -25 1603 No stop 17 35 17 --- 04 55 19 38.2 28.6 -7.7 -43.3 215 1726 17 31 18 17 37 07 2MJ1237+6526 04 57 10 38.4 28.8 -7.7 -43.6 103 1726 17 37 07 17 41 07 --- 05 01 10 38.7 29.2 -7.6 -44.3 240 1850 17 37 08 17 41 07 J1229+6335 05 01 10 38.0 31.6 -7.5 -44.7 -26 1850 No stop 17 42 17 --- 05 02 21 38.1 31.8 -7.5 -44.8 44 1886 17 41 08 17 42 17 2MJ1237+6526 05 02 21 38.7 29.3 -7.6 -44.5 -25 1886 No stop 17 46 17 --- 05 06 21 39.0 29.7 -7.5 -45.2 215 2010 17 42 18 17 48 07 2MJ1237+6526 05 08 12 39.2 29.8 -7.5 -45.5 103 2010 17 48 07 17 52 07 --- 05 12 12 39.5 30.2 -7.4 -46.1 240 2133 17 48 08 17 52 07 J1229+6335 05 12 12 38.9 32.8 -7.3 -46.4 -26 2133 No stop 17 53 17 --- 05 13 22 39.0 32.9 -7.3 -46.6 44 2169 17 52 08 17 53 17 2MJ1237+6526 05 13 22 39.6 30.3 -7.4 -46.3 -26 2169 No stop 17 57 17 --- 05 17 23 39.9 30.7 -7.4 -47.0 214 2293 17 53 18 17 59 07 2MJ1237+6526 05 19 13 40.0 30.9 -7.3 -47.3 103 2293 17 59 07 18 03 07 --- 05 23 14 40.3 31.2 -7.3 -48.0 240 2417 17 59 08 18 03 07 J1229+6335 05 23 14 39.8 33.8 -7.1 -48.2 -26 2417 No stop 18 04 17 --- 05 24 24 39.9 33.9 -7.1 -48.4 44 2453 18 03 08 Schedule for JODRELL1 (Code Jb ) Page 4 new UCD -6cm 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 14 Mar 2022 Day 73 --- 18 04 17 2MJ1237+6526 05 24 24 40.4 31.3 -7.2 -48.2 -26 2453 No stop 18 08 17 --- 05 28 25 40.7 31.7 -7.2 -48.8 214 2576 18 04 18 18 10 07 2MJ1237+6526 05 30 15 40.9 31.9 -7.1 -49.2 103 2576 18 10 07 18 14 07 --- 05 34 16 41.2 32.2 -7.1 -49.8 240 2700 18 10 08 18 14 07 J1229+6335 05 34 16 40.7 34.9 -6.9 -50.0 -26 2700 No stop 18 15 17 --- 05 35 26 40.8 35.0 -6.9 -50.2 44 2736 18 14 08 18 15 17 2MJ1237+6526 05 35 26 41.3 32.3 -7.1 -50.0 -26 2736 No stop 18 19 17 --- 05 39 27 41.6 32.7 -7.0 -50.7 214 2860 18 15 18 18 21 07 2MJ1237+6526 05 41 17 41.8 32.8 -7.0 -51.0 103 2860 18 21 07 18 25 07 --- 05 45 18 42.1 33.2 -6.9 -51.7 240 2983 18 21 08 18 25 07 J1229+6335 05 45 18 41.7 35.9 -6.7 -51.8 -27 2983 No stop 18 26 17 --- 05 46 28 41.8 36.0 -6.7 -52.0 43 3020 18 25 08 18 30 37 1049+215 05 50 49 25.4 88.1 -5.0 -39.9 37 3020 18 30 37 18 34 37 --- 05 54 49 26.0 88.9 -5.0 -39.9 240 3143 18 30 38 18 35 50 J1051+2119 05 56 02 26.2 89.1 -4.9 -39.9 65 3143 18 35 50 18 36 50 --- 05 57 03 26.3 89.3 -4.9 -39.9 60 3174 18 35 51 18 36 50 2MJ1047+2124 05 57 03 27.0 90.0 -4.9 -40.0 -17 3174 No stop 18 41 06 --- 06 01 19 27.6 90.9 -4.8 -40.0 239 3306 18 36 51 18 42 42 2MJ1047+2124 06 02 56 27.9 91.2 -4.8 -40.0 88 3306 18 42 42 18 46 59 --- 06 07 13 28.5 92.1 -4.7 -39.9 257 3438 18 42 43 18 46 59 J1051+2119 06 07 13 27.9 91.4 -4.8 -39.9 -16 3438 No stop 18 48 09 --- 06 08 23 28.0 91.6 -4.7 -39.9 54 3475 18 47 00 18 48 09 2MJ1047+2124 06 08 23 28.7 92.3 -4.7 -39.9 -17 3475 No stop 18 52 25 --- 06 12 40 29.3 93.2 -4.6 -39.9 239 3606 18 48 10 18 54 01 2MJ1047+2124 06 14 16 29.6 93.5 -4.6 -39.9 88 3606 18 54 01 18 58 18 --- 06 18 34 30.2 94.4 -4.5 -39.8 257 3739 18 54 02 18 58 18 J1051+2119 06 18 34 29.6 93.7 -4.6 -39.8 -16 3739 No stop 18 59 28 --- 06 19 44 29.7 93.9 -4.6 -39.8 54 3775 18 58 19 18 59 28 2MJ1047+2124 06 19 44 30.4 94.7 -4.5 -39.8 -17 3775 No stop 19 03 44 --- 06 24 01 31.0 95.6 -4.4 -39.7 239 3907 18 59 29 Schedule for JODRELL1 (Code Jb ) Page 5 new UCD -6cm 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 14 Mar 2022 Day 73 --- 19 05 20 2MJ1047+2124 06 25 37 31.3 95.9 -4.4 -39.7 88 3907 19 05 20 19 09 37 --- 06 29 55 31.9 96.8 -4.3 -39.6 257 4039 19 05 21 19 09 37 J1051+2119 06 29 55 31.3 96.0 -4.4 -39.7 -17 4039 No stop 19 10 47 --- 06 31 05 31.4 96.3 -4.4 -39.7 53 4075 19 09 38 19 10 47 2MJ1047+2124 06 31 05 32.1 97.0 -4.3 -39.6 -17 4075 No stop 19 15 03 --- 06 35 22 32.7 98.0 -4.2 -39.5 239 4207 19 10 48 19 16 39 2MJ1047+2124 06 36 58 32.9 98.3 -4.2 -39.5 88 4207 19 16 39 19 20 56 --- 06 41 16 33.6 99.2 -4.1 -39.3 257 4340 19 16 40 19 20 56 J1051+2119 06 41 16 32.9 98.4 -4.2 -39.4 -17 4340 No stop 19 22 06 --- 06 42 26 33.1 98.7 -4.2 -39.4 53 4376 19 20 57 19 22 06 2MJ1047+2124 06 42 26 33.7 99.5 -4.1 -39.3 -17 4376 No stop 19 26 22 --- 06 46 43 34.4 100.4 -4.0 -39.2 239 4508 19 22 07 19 27 58 2MJ1047+2124 06 48 19 34.6 100.8 -4.0 -39.1 88 4508 19 27 58 19 32 15 --- 06 52 37 35.2 101.7 -3.9 -39.0 257 4640 19 27 59 19 32 15 J1051+2119 06 52 37 34.6 100.9 -4.0 -39.1 -17 4640 No stop 19 33 25 --- 06 53 47 34.8 101.2 -4.0 -39.0 53 4676 19 32 16 19 33 25 2MJ1047+2124 06 53 47 35.4 102.0 -3.9 -38.9 -17 4676 No stop 19 37 41 --- 06 58 04 36.0 102.9 -3.9 -38.8 239 4808 19 33 26 19 39 17 2MJ1047+2124 06 59 40 36.3 103.3 -3.8 -38.7 88 4808 19 39 17 19 43 34 --- 07 03 58 36.9 104.3 -3.8 -38.5 257 4940 19 39 18 19 43 34 J1051+2119 07 03 58 36.3 103.4 -3.8 -38.6 -17 4940 No stop 19 44 44 --- 07 05 08 36.4 103.7 -3.8 -38.6 53 4977 19 43 35 19 44 44 2MJ1047+2124 07 05 08 37.1 104.5 -3.7 -38.4 -18 4977 No stop 19 49 00 --- 07 09 24 37.7 105.5 -3.7 -38.2 238 5108 19 44 45 19 50 36 2MJ1047+2124 07 11 01 37.9 105.9 -3.6 -38.2 88 5108 19 50 36 19 54 53 --- 07 15 18 38.5 106.9 -3.6 -37.9 257 5241 19 50 37 19 54 53 J1051+2119 07 15 18 37.9 106.0 -3.6 -38.1 -17 5241 No stop 19 56 03 --- 07 16 29 38.1 106.3 -3.6 -38.0 53 5277 19 54 54 19 56 03 2MJ1047+2124 07 16 29 38.7 107.2 -3.5 -37.9 -18 5277 No stop 20 00 19 --- 07 20 45 39.3 108.2 -3.5 -37.6 238 5409 19 56 04 Schedule for JODRELL1 (Code Jb ) Page 6 new UCD -6cm 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 14 Mar 2022 Day 73 --- 20 01 55 2MJ1047+2124 07 22 22 39.5 108.6 -3.4 -37.5 88 5409 20 01 55 20 06 12 --- 07 26 39 40.1 109.6 -3.4 -37.2 257 5541 20 01 56 20 06 12 J1051+2119 07 26 39 39.5 108.7 -3.4 -37.5 -17 5541 No stop 20 07 22 --- 07 27 49 39.7 109.0 -3.4 -37.4 53 5577 20 06 13 20 07 22 2MJ1047+2124 07 27 49 40.3 109.9 -3.4 -37.2 -18 5577 No stop 20 11 38 --- 07 32 06 40.9 110.9 -3.3 -36.9 238 5709 20 07 23 20 13 14 2MJ1047+2124 07 33 42 41.1 111.3 -3.3 -36.8 88 5709 20 13 14 20 17 31 --- 07 38 00 41.7 112.4 -3.2 -36.4 257 5842 20 13 15 20 17 31 J1051+2119 07 38 00 41.1 111.5 -3.3 -36.7 -18 5842 No stop 20 18 41 --- 07 39 10 41.3 111.8 -3.2 -36.6 52 5878 20 17 32 20 18 41 2MJ1047+2124 07 39 10 41.9 112.7 -3.2 -36.3 -18 5878 No stop 20 22 57 --- 07 43 27 42.5 113.8 -3.1 -36.0 238 6010 20 18 42 20 24 33 2MJ1047+2124 07 45 03 42.7 114.2 -3.1 -35.9 88 6010 20 24 33 20 28 50 --- 07 49 21 43.3 115.3 -3.0 -35.5 257 6142 20 24 34 20 28 50 J1051+2119 07 49 21 42.7 114.3 -3.1 -35.8 -18 6142 No stop 20 30 00 --- 07 50 31 42.9 114.6 -3.0 -35.7 52 6178 20 28 51 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess122.C4096 --- 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: 2 Station: JODRELL1 Total bit rate: 4096 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 32 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 5624.00 Net SB= L L U U L L U U L L U U L L U U L L U U L L U U L L U U L L U U IF SB = L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 5 13 5 13 6 14 6 14 7 15 7 15 8 16 8 16 BBC SB= U U L L U U L L U U L L U U L L U U L L U U L L U U L L U U L L IF = A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 1 Setup file default. Used with PCAL = off LO sum= 4632.00 4632.00 4632.00 4632.00 4696.00 4696.00 4696.00 4696.00 4760.00 4760.00 4760.00 4760.00 4824.00 4824.00 4824.00 4824.00 4888.00 4888.00 4888.00 4888.00 4952.00 4952.00 4952.00 4952.00 5016.00 5016.00 5016.00 5016.00 5080.00 5080.00 5080.00 5080.00 BBC fr= 992.00 992.00 992.00 992.00 928.00 928.00 928.00 928.00 864.00 864.00 864.00 864.00 800.00 800.00 800.00 800.00 736.00 736.00 736.00 736.00 672.00 672.00 672.00 672.00 608.00 608.00 608.00 608.00 544.00 544.00 544.00 544.00 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 1 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * 2MJ1237+6526 12 35 28.805042 * 12 37 39.196320 12 38 39.759564 0.00 65 42 43.88929 * 65 26 14.80920 65 18 51.91948 0.00 From catalog imbedded in main SCHED input file. * J1229+6335 12 26 48.728851 * 12 29 06.026100 12 30 09.378547 0.00 63 51 35.35050 * 63 35 00.98400 63 27 36.34217 0.00 From catalog imbedded in main SCHED input file. * 2MJ1047+2124 10 45 11.794235 * 10 47 53.854560 10 49 06.284597 0.00 21 40 14.43291 * 21 24 23.46840 21 17 20.54817 0.00 From catalog imbedded in main SCHED input file. * J1051+2119 10 49 07.187580 * 10 51 48.789080 10 53 01.022959 0.00 21 35 48.53739 * 21 19 52.31377 21 12 46.93323 0.00 From catalog imbedded in main SCHED input file. J1051+2119 10 49 07.187573 * 10 51 48.789073 10 53 01.022952 0.11 * 1049+215 21 35 48.53736 * 21 19 52.31374 21 12 46.93320 0.11 J1051+21 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.vlba.2012jul rfc_2012b Petrov, 2012, unpublished 1666 observations J1229+6335 12 26 48.728766 * 12 29 06.026016 12 30 09.378463 4.05 * 1226+638 63 51 35.34648 * 63 35 00.97998 63 27 36.33815 2.58 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.vlba.2012jul GSFC 2011B astro solution 17 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 2MJ1237+652sess122.C4096 1 2 3 4 5 6 7 8 10 14 1.333 110.191 J1229+6335 sess122.C4096 1 2 3 4 5 6 7 8 10 14 0.394 27.905 2MJ1047+212sess122.C4096 1 2 3 4 5 6 7 8 10 14 15 16 1.425 158.127 J1051+2119 sess122.C4096 1 2 3 4 5 6 7 8 10 14 15 16 0.378 36.866 1049+215 sess122.C4096 1 2 3 4 5 7 8 10 14 15 16 0.067 6.999 1226+638 sess122.C4096 1 2 3 4 5 6 7 8 10 14 0.067 6.067 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) 2MJ1237+6526 116.1 J1229+6335 118.1 2MJ1047+2124 157.5 J1051+2119 158.1 1049+215 158.1 1226+638 118.1 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