COVER INFORMATION Station: JODRELL2 (Code Jb ) Experiment: EVN mapping of 6.7 GHz maser in accretion burst candidate. Exp. Code: ED046A Schedule Version: 1.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Michal Durjasz Address: Torun Centre for Astronomy ul. Gagarina 11, Torun, PL-87100 Poland Phone: +48 56 6113037 EMAIL: md@astro.uni.torun.pl Fax: +48 56 6113009 Phone during observation: +48 56 6113010 Observing mode: MKV, 128Mb/s Notes: Please, make sure the PHASE CAL is OFF. Schedule for JODRELL2 (Code Jb ) Page 2 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 1 Jun 2020 Day 153 --- Next scan frequencies: 6662.86 6662.86 6662.86 6662.86 6666.86 6666.86 6666.86 6666.86 6670.86 6670.86 6670.86 6670.86 6674.86 6674.86 6674.86 6674.86 Next BBC frequencies: 775.14 775.14 775.14 775.14 771.14 771.14 771.14 771.14 767.14 767.14 767.14 767.14 763.14 763.14 763.14 763.14 Next scan bandwidths: 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 19 30 00 2007+777 12 03 45 46.1 15.1 -8.0 -48.2 0 0 19 30 00 19 36 30 --- 12 10 16 46.3 15.4 -7.9 -49.5 390 6 19 30 01 19 40 30 J2102+4702 12 14 17 18.3 32.1 -8.8 -27.8 138 6 19 40 30 19 42 15 =2100+468 12 16 02 18.4 32.4 -8.8 -28.1 105 8 19 40 31 19 42 45 G85.41 12 16 32 17.2 34.8 -8.6 -28.9 3 8 19 42 45 19 46 00 --- 12 19 48 17.5 35.3 -8.6 -29.3 195 11 19 42 46 19 46 00 J2102+4702 12 19 48 18.7 33.0 -8.7 -28.6 -26 11 No stop 19 47 45 =2100+468 12 21 33 18.9 33.2 -8.7 -28.8 79 13 19 46 01 19 48 15 G85.41 12 22 03 17.7 35.7 -8.5 -29.6 3 13 19 48 15 19 51 30 --- 12 25 18 18.0 36.2 -8.5 -30.0 195 16 19 48 16 19 51 30 J2102+4702 12 25 18 19.2 33.8 -8.6 -29.3 -26 16 No stop 19 53 15 =2100+468 12 27 04 19.3 34.1 -8.6 -29.5 79 18 19 51 31 19 53 45 G85.41 12 27 34 18.2 36.6 -8.5 -30.3 3 18 19 53 45 19 57 00 --- 12 30 49 18.5 37.1 -8.4 -30.7 195 21 19 53 46 19 57 00 J2102+4702 12 30 49 19.6 34.7 -8.5 -30.0 -26 21 No stop 19 58 45 =2100+468 12 32 35 19.8 35.0 -8.5 -30.3 79 22 19 57 01 19 59 15 G85.41 12 33 05 18.7 37.5 -8.4 -31.0 3 22 19 59 15 20 02 30 --- 12 36 20 19.0 38.0 -8.3 -31.4 195 26 19 59 16 20 02 30 J2102+4702 12 36 20 20.1 35.5 -8.4 -30.7 -26 26 No stop 20 04 15 =2100+468 12 38 06 20.3 35.8 -8.4 -31.0 79 27 20 02 31 20 04 45 G85.41 12 38 36 19.2 38.3 -8.3 -31.7 3 27 20 04 45 20 08 00 --- 12 41 51 19.5 38.9 -8.2 -32.1 195 30 20 04 46 20 08 00 J2102+4702 12 41 51 20.6 36.4 -8.4 -31.5 -26 30 No stop 20 09 45 =2100+468 12 43 36 20.7 36.7 -8.3 -31.7 79 32 20 08 01 20 10 15 G85.41 12 44 07 19.7 39.2 -8.2 -32.3 3 32 20 10 15 20 13 30 --- 12 47 22 20.0 39.7 -8.1 -32.7 195 35 20 10 16 Schedule for JODRELL2 (Code Jb ) Page 3 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 1 Jun 2020 Day 153 --- 20 13 30 J2102+4702 12 47 22 21.1 37.3 -8.3 -32.2 -27 35 No stop 20 15 15 =2100+468 12 49 07 21.2 37.5 -8.2 -32.4 78 37 20 13 31 20 15 45 G85.41 12 49 37 20.2 40.1 -8.1 -33.0 3 37 20 15 45 20 19 00 --- 12 52 53 20.6 40.6 -8.0 -33.4 195 40 20 15 46 20 19 00 J2102+4702 12 52 53 21.6 38.1 -8.2 -32.9 -27 40 No stop 20 20 45 =2100+468 12 54 38 21.8 38.4 -8.1 -33.1 78 42 20 19 01 20 21 15 G85.41 12 55 08 20.8 41.0 -8.0 -33.7 3 42 20 21 15 20 24 30 --- 12 58 24 21.1 41.5 -7.9 -34.1 195 45 20 21 16 20 24 30 J2102+4702 12 58 24 22.1 38.9 -8.1 -33.6 -27 45 No stop 20 26 15 =2100+468 13 00 09 22.3 39.2 -8.0 -33.8 78 47 20 24 31 20 26 45 G85.41 13 00 39 21.3 41.8 -7.9 -34.4 2 47 20 26 45 20 30 00 --- 13 03 55 21.7 42.3 -7.9 -34.7 195 50 20 26 46 20 30 00 J2102+4702 13 03 55 22.6 39.8 -8.0 -34.3 -27 50 No stop 20 31 45 =2100+468 13 05 40 22.8 40.1 -8.0 -34.5 78 51 20 30 01 20 32 15 G85.41 13 06 10 21.9 42.7 -7.8 -35.0 2 51 20 32 15 20 35 30 --- 13 09 26 22.2 43.2 -7.8 -35.4 195 55 20 32 16 20 35 30 J2102+4702 13 09 26 23.2 40.6 -7.9 -34.9 -27 55 No stop 20 37 15 =2100+468 13 11 11 23.3 40.9 -7.9 -35.2 78 56 20 35 31 20 37 45 G85.41 13 11 41 22.4 43.6 -7.7 -35.7 2 56 20 37 45 20 41 00 --- 13 14 57 22.8 44.1 -7.7 -36.0 195 59 20 37 46 20 41 00 J2102+4702 13 14 57 23.7 41.5 -7.8 -35.6 -27 59 No stop 20 42 45 =2100+468 13 16 42 23.9 41.7 -7.8 -35.8 78 61 20 41 01 20 43 15 G85.41 13 17 12 23.0 44.4 -7.6 -36.3 2 61 20 43 15 20 46 30 --- 13 20 27 23.4 44.9 -7.6 -36.7 195 64 20 43 16 20 46 30 J2102+4702 13 20 27 24.3 42.3 -7.7 -36.3 -27 64 No stop 20 48 15 =2100+468 13 22 13 24.4 42.6 -7.7 -36.5 78 66 20 46 31 20 48 45 G85.41 13 22 43 23.6 45.3 -7.5 -36.9 2 66 20 48 45 20 52 00 --- 13 25 58 23.9 45.8 -7.5 -37.3 195 69 20 48 46 20 52 00 J2102+4702 13 25 58 24.8 43.1 -7.6 -37.0 -27 69 No stop 20 53 45 =2100+468 13 27 44 25.0 43.4 -7.6 -37.2 78 71 20 52 01 Schedule for JODRELL2 (Code Jb ) Page 4 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 1 Jun 2020 Day 153 --- 20 54 15 G85.41 13 28 14 24.2 46.1 -7.4 -37.6 2 71 20 54 15 20 57 30 --- 13 31 29 24.5 46.6 -7.4 -37.9 195 74 20 54 16 20 57 30 J2102+4702 13 31 29 25.4 43.9 -7.5 -37.6 -27 74 No stop 20 59 15 =2100+468 13 33 15 25.6 44.2 -7.5 -37.8 78 76 20 57 31 20 59 45 G85.41 13 33 45 24.8 47.0 -7.4 -38.2 2 76 20 59 45 21 03 00 --- 13 37 00 25.1 47.5 -7.3 -38.6 195 79 20 59 46 21 03 00 J2102+4702 13 37 00 26.0 44.8 -7.4 -38.3 -28 79 No stop 21 04 45 =2100+468 13 38 45 26.1 45.0 -7.4 -38.5 77 80 21 03 01 21 05 15 G85.41 13 39 16 25.4 47.8 -7.3 -38.8 2 80 21 05 15 21 08 30 --- 13 42 31 25.8 48.3 -7.2 -39.2 195 84 21 05 16 21 08 30 J2102+4702 13 42 31 26.5 45.6 -7.3 -38.9 -28 84 No stop 21 10 15 =2100+468 13 44 16 26.7 45.8 -7.3 -39.1 77 85 21 08 31 21 10 45 G85.41 13 44 46 26.0 48.6 -7.2 -39.4 2 85 21 10 45 21 14 00 --- 13 48 02 26.4 49.1 -7.1 -39.8 195 88 21 10 46 21 14 00 J2102+4702 13 48 02 27.1 46.4 -7.2 -39.6 -28 88 No stop 21 15 45 =2100+468 13 49 47 27.3 46.7 -7.2 -39.8 77 90 21 14 01 21 16 15 G85.41 13 50 17 26.6 49.5 -7.1 -40.0 2 90 21 16 15 21 19 30 --- 13 53 33 27.0 50.0 -7.0 -40.4 195 93 21 16 16 21 19 30 J2102+4702 13 53 33 27.7 47.2 -7.2 -40.2 -28 93 No stop 21 21 15 =2100+468 13 55 18 27.9 47.5 -7.1 -40.4 77 95 21 19 31 21 21 45 G85.41 13 55 48 27.3 50.3 -7.0 -40.6 1 95 21 21 45 21 25 00 --- 13 59 04 27.6 50.8 -6.9 -41.0 195 98 21 21 46 21 25 00 J2102+4702 13 59 04 28.3 48.0 -7.1 -40.8 -28 98 No stop 21 26 45 =2100+468 14 00 49 28.5 48.3 -7.0 -41.0 77 100 21 25 01 21 27 15 G85.41 14 01 19 27.9 51.1 -6.9 -41.2 1 100 21 27 15 21 30 30 --- 14 04 35 28.3 51.6 -6.8 -41.6 195 103 21 27 16 21 30 30 J2102+4702 14 04 35 29.0 48.8 -7.0 -41.5 -28 103 No stop 21 32 15 =2100+468 14 06 20 29.2 49.1 -6.9 -41.7 77 105 21 30 31 21 32 45 G85.41 14 06 50 28.6 52.0 -6.8 -41.8 1 105 21 32 45 21 36 00 --- 14 10 06 28.9 52.5 -6.7 -42.1 195 108 21 32 46 Schedule for JODRELL2 (Code Jb ) Page 5 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 1 Jun 2020 Day 153 --- 21 36 00 J2102+4702 14 10 06 29.6 49.6 -6.9 -42.1 -28 108 No stop 21 37 45 =2100+468 14 11 51 29.8 49.9 -6.9 -42.3 77 109 21 36 01 21 38 15 G85.41 14 12 21 29.2 52.8 -6.7 -42.4 1 109 21 38 15 21 41 30 --- 14 15 37 29.6 53.3 -6.7 -42.7 195 113 21 38 16 21 41 30 J2102+4702 14 15 37 30.2 50.4 -6.8 -42.7 -28 113 No stop 21 43 15 =2100+468 14 17 22 30.4 50.7 -6.8 -42.9 77 114 21 41 31 21 43 45 G85.41 14 17 52 29.9 53.6 -6.6 -42.9 1 114 21 43 45 21 47 00 --- 14 21 07 30.3 54.1 -6.6 -43.3 195 117 21 43 46 21 47 00 J2102+4702 14 21 07 30.9 51.2 -6.7 -43.3 -29 117 No stop 21 48 45 =2100+468 14 22 53 31.1 51.5 -6.7 -43.5 76 119 21 47 01 21 49 15 G85.41 14 23 23 30.5 54.4 -6.5 -43.5 1 119 21 49 15 21 52 30 --- 14 26 38 30.9 54.9 -6.5 -43.8 195 122 21 49 16 21 52 30 J2102+4702 14 26 38 31.5 52.0 -6.6 -43.9 -29 122 No stop 21 54 15 =2100+468 14 28 24 31.7 52.3 -6.6 -44.1 76 124 21 52 31 21 54 45 G85.41 14 28 54 31.2 55.3 -6.4 -44.1 1 124 21 54 45 21 58 00 --- 14 32 09 31.6 55.7 -6.4 -44.4 195 127 21 54 46 21 58 00 J2102+4702 14 32 09 32.2 52.8 -6.5 -44.5 -29 127 No stop 21 59 45 =2100+468 14 33 55 32.4 53.1 -6.5 -44.7 76 129 21 58 01 22 00 15 G85.41 14 34 25 31.9 56.1 -6.3 -44.6 1 129 22 00 15 22 03 30 --- 14 37 40 32.3 56.6 -6.3 -44.9 195 132 22 00 16 22 03 30 J2102+4702 14 37 40 32.8 53.6 -6.4 -45.1 -29 132 No stop 22 05 15 =2100+468 14 39 25 33.0 53.9 -6.4 -45.3 76 134 22 03 31 22 05 45 G85.41 14 39 56 32.6 56.9 -6.3 -45.1 0 134 22 05 45 22 09 00 --- 14 43 11 33.0 57.4 -6.2 -45.5 195 137 22 05 46 22 09 00 J2102+4702 14 43 11 33.5 54.4 -6.3 -45.6 -29 137 No stop 22 10 45 =2100+468 14 44 56 33.7 54.6 -6.3 -45.8 76 138 22 09 01 22 11 15 G85.41 14 45 26 33.3 57.7 -6.2 -45.7 0 138 22 11 15 22 14 30 --- 14 48 42 33.7 58.2 -6.1 -46.0 195 142 22 11 16 22 14 30 J2102+4702 14 48 42 34.2 55.2 -6.2 -46.2 -29 142 No stop 22 16 15 =2100+468 14 50 27 34.4 55.4 -6.2 -46.4 76 143 22 14 31 Schedule for JODRELL2 (Code Jb ) Page 6 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 1 Jun 2020 Day 153 --- 22 16 45 G85.41 14 50 57 34.0 58.5 -6.1 -46.2 0 143 22 16 45 22 20 00 --- 14 54 13 34.4 59.0 -6.0 -46.5 195 146 22 16 46 22 20 00 J2102+4702 14 54 13 34.8 56.0 -6.1 -46.8 -29 146 No stop 22 21 45 =2100+468 14 55 58 35.1 56.2 -6.1 -47.0 76 148 22 20 01 22 22 15 G85.41 14 56 28 34.7 59.3 -6.0 -46.7 0 148 22 22 15 22 25 30 --- 14 59 44 35.1 59.8 -5.9 -47.0 195 151 22 22 16 22 25 30 J2102+4702 14 59 44 35.5 56.7 -6.1 -47.3 -29 151 No stop 22 27 15 =2100+468 15 01 29 35.8 57.0 -6.0 -47.5 76 153 22 25 31 22 27 45 G85.41 15 01 59 35.4 60.2 -5.9 -47.2 0 153 22 27 45 22 31 00 --- 15 05 15 35.8 60.6 -5.8 -47.5 195 156 22 27 46 22 31 00 J2102+4702 15 05 15 36.2 57.5 -6.0 -47.9 -30 156 No stop 22 32 45 =2100+468 15 07 00 36.4 57.8 -5.9 -48.1 75 158 22 31 01 22 33 15 G85.41 15 07 30 36.1 61.0 -5.8 -47.7 0 158 22 33 15 22 36 30 --- 15 10 46 36.5 61.4 -5.7 -48.0 195 161 22 33 16 22 36 30 J2102+4702 15 10 46 36.9 58.3 -5.9 -48.4 -30 161 No stop 22 38 15 =2100+468 15 12 31 37.1 58.5 -5.8 -48.6 75 163 22 36 31 22 38 45 G85.41 15 13 01 36.8 61.8 -5.7 -48.2 0 163 22 38 45 22 42 00 --- 15 16 16 37.3 62.3 -5.6 -48.5 195 166 22 38 46 22 42 00 J2102+4702 15 16 16 37.6 59.1 -5.8 -49.0 -30 166 No stop 22 43 45 =2100+468 15 18 02 37.9 59.3 -5.7 -49.2 75 167 22 42 01 22 44 15 G85.41 15 18 32 37.6 62.6 -5.6 -48.7 -1 167 22 44 15 22 47 30 --- 15 21 47 38.0 63.1 -5.6 -49.0 194 171 22 44 16 22 47 30 J2102+4702 15 21 47 38.3 59.9 -5.7 -49.5 -30 171 No stop 22 49 15 =2100+468 15 23 33 38.6 60.1 -5.7 -49.7 75 172 22 47 31 22 49 45 G85.41 15 24 03 38.3 63.4 -5.5 -49.2 -1 172 22 49 45 22 53 00 --- 15 27 18 38.7 63.9 -5.5 -49.4 194 175 22 49 46 22 53 00 J2102+4702 15 27 18 39.1 60.6 -5.6 -50.0 -30 175 No stop 22 54 45 =2100+468 15 29 04 39.3 60.9 -5.6 -50.2 75 177 22 53 01 22 55 15 G85.41 15 29 34 39.0 64.2 -5.4 -49.6 -1 177 22 55 15 22 58 30 --- 15 32 49 39.5 64.7 -5.4 -49.9 194 180 22 55 16 Schedule for JODRELL2 (Code Jb ) Page 7 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 1 Jun 2020 Day 153 --- 22 58 30 J2102+4702 15 32 49 39.8 61.4 -5.5 -50.6 -30 180 No stop 23 00 15 =2100+468 15 34 34 40.0 61.7 -5.5 -50.7 75 182 22 58 31 23 00 45 G85.41 15 35 05 39.8 65.0 -5.3 -50.1 -1 182 23 00 45 23 04 00 --- 15 38 20 40.2 65.5 -5.3 -50.4 194 185 23 00 46 23 04 00 J2102+4702 15 38 20 40.5 62.2 -5.4 -51.1 -31 185 No stop 23 05 45 =2100+468 15 40 05 40.7 62.4 -5.4 -51.2 74 187 23 04 01 23 06 15 G85.41 15 40 35 40.5 65.8 -5.2 -50.5 -1 187 23 06 15 23 09 30 --- 15 43 51 41.0 66.3 -5.2 -50.8 194 190 23 06 16 23 09 30 J2102+4702 15 43 51 41.2 63.0 -5.3 -51.6 -31 190 No stop 23 11 15 =2100+468 15 45 36 41.5 63.2 -5.3 -51.7 74 192 23 09 31 23 14 15 2007+777 15 48 37 56.9 20.2 -4.3 -99.3 28 192 23 14 15 23 21 15 --- 15 55 38 57.3 20.0 -4.2 -101.2 420 198 23 14 16 23 24 15 J2102+4702 15 58 38 43.2 65.0 -5.1 -52.9 22 198 23 24 15 23 26 00 =2100+468 16 00 24 43.5 65.3 -5.0 -53.0 105 200 23 24 16 ---------- Ef out for pointing ---------- 23 26 30 G85.41 16 00 54 43.3 68.9 -4.9 -52.1 -2 200 23 26 30 23 29 45 --- 16 04 09 43.8 69.4 -4.8 -52.4 193 203 23 26 31 23 29 45 J2102+4702 16 04 09 44.0 65.8 -5.0 -53.4 -31 203 No stop 23 31 30 =2100+468 16 05 55 44.2 66.1 -5.0 -53.5 74 205 23 29 46 23 32 00 G85.41 16 06 25 44.1 69.7 -4.8 -52.5 -2 205 23 32 00 23 35 15 --- 16 09 40 44.6 70.2 -4.8 -52.7 193 208 23 32 01 23 35 15 J2102+4702 16 09 40 44.7 66.6 -4.9 -53.8 -32 208 No stop 23 37 00 =2100+468 16 11 25 45.0 66.8 -4.9 -54.0 73 210 23 35 16 ---------- Ef back again ---------- 23 37 30 G85.41 16 11 56 44.9 70.5 -4.7 -52.9 -2 210 23 37 30 23 40 45 --- 16 15 11 45.4 71.0 -4.7 -53.1 193 213 23 37 31 23 40 45 J2102+4702 16 15 11 45.5 67.4 -4.8 -54.3 -32 213 No stop 23 42 30 =2100+468 16 16 56 45.7 67.6 -4.8 -54.4 73 214 23 40 46 23 43 00 G85.41 16 17 26 45.7 71.4 -4.6 -53.3 -3 214 23 43 00 23 46 15 --- 16 20 42 46.1 71.8 -4.6 -53.5 192 218 23 43 01 Schedule for JODRELL2 (Code Jb ) Page 8 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 1 Jun 2020 Day 153 --- 23 46 15 J2102+4702 16 20 42 46.3 68.2 -4.7 -54.7 -32 218 No stop 23 48 00 =2100+468 16 22 27 46.5 68.4 -4.7 -54.9 73 219 23 46 16 23 48 30 G85.41 16 22 57 46.5 72.2 -4.5 -53.7 -3 219 23 48 30 23 51 45 --- 16 26 13 46.9 72.7 -4.5 -53.9 192 222 23 48 31 23 51 45 J2102+4702 16 26 13 47.0 68.9 -4.6 -55.2 -32 222 No stop 23 53 30 =2100+468 16 27 58 47.3 69.2 -4.6 -55.3 73 224 23 51 46 23 54 00 G85.41 16 28 28 47.2 73.0 -4.4 -54.0 -3 224 23 54 00 23 57 15 --- 16 31 44 47.7 73.5 -4.4 -54.2 192 227 23 54 01 23 57 15 J2102+4702 16 31 44 47.8 69.7 -4.5 -55.6 -33 227 No stop 23 59 00 =2100+468 16 33 29 48.0 70.0 -4.5 -55.7 72 229 23 57 16 --- Start: Mon 1 Jun 2020 Day 153 -- Stop: Tue 2 Jun 2020 Day 154 --- 23 59 30 G85.41 16 33 59 48.0 73.9 -4.3 -54.4 -3 229 23 59 30 00 02 45 --- 16 37 15 48.5 74.4 -4.3 -54.6 192 232 23 59 31 00 02 45 J2102+4702 16 37 15 48.6 70.5 -4.4 -56.0 -33 232 No stop 00 04 30 =2100+468 16 39 00 48.8 70.8 -4.4 -56.1 72 234 00 02 46 00 05 00 G85.41 16 39 30 48.8 74.7 -4.3 -54.7 -3 234 00 05 00 00 08 15 --- 16 42 46 49.3 75.2 -4.2 -54.9 192 237 00 05 01 00 08 15 J2102+4702 16 42 46 49.4 71.3 -4.3 -56.4 -33 237 No stop 00 10 00 =2100+468 16 44 31 49.6 71.6 -4.3 -56.6 72 239 00 08 16 00 10 30 G85.41 16 45 01 49.6 75.6 -4.2 -55.0 -4 239 00 10 30 00 13 45 --- 16 48 17 50.1 76.1 -4.1 -55.2 191 242 00 10 31 00 13 45 J2102+4702 16 48 17 50.1 72.1 -4.2 -56.8 -33 242 No stop 00 15 30 =2100+468 16 50 02 50.4 72.4 -4.2 -57.0 72 243 00 13 46 00 16 00 G85.41 16 50 32 50.4 76.5 -4.1 -55.3 -4 243 00 16 00 00 19 15 --- 16 53 47 50.9 77.0 -4.0 -55.5 191 247 00 16 01 00 19 15 J2102+4702 16 53 47 50.9 72.9 -4.2 -57.2 -34 247 No stop 00 21 00 =2100+468 16 55 33 51.2 73.2 -4.1 -57.3 71 248 00 19 16 00 21 30 G85.41 16 56 03 51.2 77.3 -4.0 -55.6 -4 248 00 21 30 00 24 45 --- 16 59 18 51.7 77.8 -3.9 -55.8 191 251 00 21 31 Schedule for JODRELL2 (Code Jb ) Page 9 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 ---------------------------------------------------------------------------------------- --- Tue 2 Jun 2020 Day 154 --- 00 24 45 J2102+4702 16 59 18 51.7 73.7 -4.1 -57.6 -34 251 No stop 00 26 30 =2100+468 17 01 04 52.0 74.0 -4.0 -57.7 71 253 00 24 46 00 27 00 G85.41 17 01 34 52.0 78.2 -3.9 -55.9 -5 253 00 27 00 00 30 15 --- 17 04 49 52.5 78.7 -3.8 -56.1 190 256 00 27 01 00 30 15 J2102+4702 17 04 49 52.5 74.5 -4.0 -58.0 -34 256 No stop 00 32 00 =2100+468 17 06 35 52.8 74.8 -3.9 -58.1 71 258 00 30 16 00 32 30 G85.41 17 07 05 52.8 79.1 -3.8 -56.2 -5 258 00 32 30 00 35 45 --- 17 10 20 53.3 79.6 -3.7 -56.3 190 261 00 32 31 00 35 45 J2102+4702 17 10 20 53.3 75.4 -3.9 -58.3 -34 261 No stop 00 37 30 =2100+468 17 12 05 53.6 75.6 -3.8 -58.4 71 263 00 35 46 00 38 00 G85.41 17 12 36 53.7 80.0 -3.7 -56.4 -5 263 00 38 00 00 41 15 --- 17 15 51 54.1 80.5 -3.7 -56.6 190 266 00 38 01 00 41 15 J2102+4702 17 15 51 54.1 76.2 -3.8 -58.7 -35 266 No stop 00 43 00 =2100+468 17 17 36 54.4 76.5 -3.8 -58.8 70 268 00 41 16 00 43 30 G85.41 17 18 06 54.5 80.9 -3.6 -56.7 -5 268 00 43 30 00 46 45 --- 17 21 22 55.0 81.5 -3.6 -56.8 190 271 00 43 31 00 46 45 J2102+4702 17 21 22 54.9 77.0 -3.7 -59.0 -35 271 No stop 00 48 30 =2100+468 17 23 07 55.2 77.3 -3.7 -59.1 70 272 00 46 46 00 49 00 G85.41 17 23 37 55.3 81.9 -3.5 -56.9 -6 272 00 49 00 00 52 15 --- 17 26 53 55.8 82.4 -3.5 -57.0 189 276 00 49 01 00 52 15 J2102+4702 17 26 53 55.7 77.9 -3.6 -59.3 -35 276 No stop 00 54 00 =2100+468 17 28 38 56.0 78.1 -3.6 -59.4 70 277 00 52 16 00 54 30 G85.41 17 29 08 56.1 82.8 -3.4 -57.1 -6 277 00 54 30 00 57 45 --- 17 32 24 56.6 83.4 -3.4 -57.2 189 280 00 54 31 00 57 45 J2102+4702 17 32 24 56.5 78.7 -3.5 -59.6 -36 280 No stop 00 59 30 =2100+468 17 34 09 56.8 79.0 -3.5 -59.7 69 282 00 57 46 01 00 00 G85.41 17 34 39 56.9 83.8 -3.3 -57.3 -7 282 01 00 00 01 03 15 --- 17 37 55 57.4 84.3 -3.3 -57.3 188 285 01 00 01 01 03 15 J2102+4702 17 37 55 57.3 79.6 -3.4 -59.9 -36 285 No stop 01 05 00 =2100+468 17 39 40 57.6 79.9 -3.4 -60.0 69 287 01 03 16 Schedule for JODRELL2 (Code Jb ) Page 10 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 ---------------------------------------------------------------------------------------- --- Tue 2 Jun 2020 Day 154 --- 01 05 30 G85.41 17 40 10 57.7 84.7 -3.2 -57.4 -7 287 01 05 30 01 08 45 --- 17 43 26 58.2 85.3 -3.2 -57.5 188 290 01 05 31 01 08 45 J2102+4702 17 43 26 58.1 80.5 -3.3 -60.2 -36 290 No stop 01 10 30 =2100+468 17 45 11 58.4 80.8 -3.3 -60.2 69 292 01 08 46 01 11 00 G85.41 17 45 41 58.6 85.7 -3.2 -57.5 -7 292 01 11 00 01 14 15 --- 17 48 56 59.1 86.3 -3.1 -57.6 188 295 01 11 01 01 14 15 J2102+4702 17 48 56 59.0 81.4 -3.2 -60.4 -37 295 No stop 01 16 00 =2100+468 17 50 42 59.2 81.7 -3.2 -60.5 68 297 01 14 16 01 16 30 G85.41 17 51 12 59.4 86.7 -3.1 -57.6 -8 297 01 16 30 01 19 45 --- 17 54 27 59.9 87.3 -3.0 -57.7 187 300 01 16 31 01 19 45 J2102+4702 17 54 27 59.8 82.3 -3.1 -60.6 -37 300 No stop 01 21 30 =2100+468 17 56 13 60.0 82.6 -3.1 -60.7 68 301 01 19 46 01 22 00 G85.41 17 56 43 60.2 87.8 -3.0 -57.7 -8 301 01 22 00 01 25 15 --- 17 59 58 60.7 88.4 -2.9 -57.8 187 305 01 22 01 01 25 15 J2102+4702 17 59 58 60.6 83.2 -3.1 -60.8 -38 305 No stop 01 27 00 =2100+468 18 01 44 60.9 83.5 -3.0 -60.9 67 306 01 25 16 01 27 30 G85.41 18 02 14 61.0 88.8 -2.9 -57.8 -9 306 01 27 30 01 30 45 --- 18 05 29 61.5 89.5 -2.8 -57.8 186 309 01 27 31 01 30 45 J2102+4702 18 05 29 61.4 84.1 -3.0 -61.0 -38 309 No stop 01 32 30 =2100+468 18 07 14 61.7 84.4 -2.9 -61.1 67 311 01 30 46 01 33 00 G85.41 18 07 45 61.9 89.9 -2.8 -57.8 -9 311 01 33 00 01 36 15 --- 18 11 00 62.4 90.6 -2.7 -57.8 186 314 01 33 01 01 36 15 J2102+4702 18 11 00 62.2 85.1 -2.9 -61.2 -39 314 No stop 01 38 00 =2100+468 18 12 45 62.5 85.4 -2.8 -61.2 66 316 01 36 16 01 38 30 G85.41 18 13 15 62.7 91.0 -2.7 -57.8 -10 316 01 38 30 01 41 45 --- 18 16 31 63.2 91.7 -2.6 -57.8 185 319 01 38 31 01 41 45 J2102+4702 18 16 31 63.1 86.1 -2.8 -61.3 -39 319 No stop 01 43 30 =2100+468 18 18 16 63.3 86.4 -2.7 -61.4 66 321 01 41 46 01 44 00 G85.41 18 18 46 63.5 92.2 -2.6 -57.7 -10 321 01 44 00 01 47 15 --- 18 22 02 64.0 92.9 -2.5 -57.7 185 324 01 44 01 Schedule for JODRELL2 (Code Jb ) Page 11 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 ---------------------------------------------------------------------------------------- --- Tue 2 Jun 2020 Day 154 --- 01 47 15 J2102+4702 18 22 02 63.9 87.1 -2.7 -61.4 -40 324 No stop 01 49 00 =2100+468 18 23 47 64.1 87.4 -2.7 -61.5 65 326 01 47 16 01 49 30 G85.41 18 24 17 64.3 93.4 -2.5 -57.6 -11 326 01 49 30 01 52 45 --- 18 27 33 64.8 94.1 -2.5 -57.6 184 329 01 49 31 01 52 45 J2102+4702 18 27 33 64.7 88.1 -2.6 -61.5 -40 329 No stop 01 54 30 =2100+468 18 29 18 65.0 88.5 -2.6 -61.5 65 330 01 52 46 01 55 00 G85.41 18 29 48 65.2 94.6 -2.4 -57.5 -11 330 01 55 00 01 58 15 --- 18 33 04 65.6 95.4 -2.4 -57.4 184 334 01 55 01 01 58 15 J2102+4702 18 33 04 65.5 89.2 -2.5 -61.6 -41 334 No stop 02 00 00 =2100+468 18 34 49 65.8 89.5 -2.5 -61.6 64 335 01 58 16 02 00 30 G85.41 18 35 19 66.0 95.9 -2.3 -57.3 -12 335 02 00 30 02 03 45 --- 18 38 35 66.5 96.7 -2.3 -57.2 183 338 02 00 31 02 03 45 J2102+4702 18 38 35 66.4 90.3 -2.4 -61.6 -42 338 No stop 02 05 30 =2100+468 18 40 20 66.6 90.6 -2.4 -61.6 63 340 02 03 46 02 06 00 G85.41 18 40 50 66.8 97.2 -2.2 -57.1 -13 340 02 06 00 02 09 15 --- 18 44 06 67.3 98.0 -2.2 -56.9 182 343 02 06 01 02 09 15 J2102+4702 18 44 06 67.2 91.4 -2.3 -61.6 -42 343 No stop 02 11 00 =2100+468 18 45 51 67.4 91.8 -2.3 -61.5 63 345 02 09 16 02 11 30 G85.41 18 46 21 67.6 98.6 -2.1 -56.8 -13 345 02 11 30 02 14 45 --- 18 49 36 68.1 99.4 -2.1 -56.6 182 348 02 11 31 02 14 45 J2102+4702 18 49 36 68.0 92.6 -2.2 -61.5 -43 348 No stop 02 16 30 =2100+468 18 51 22 68.3 93.0 -2.2 -61.4 62 350 02 14 46 02 17 00 G85.41 18 51 52 68.4 100.0 -2.1 -56.4 -14 350 02 17 00 02 20 15 --- 18 55 07 68.9 100.9 -2.0 -56.2 181 353 02 17 01 02 20 15 J2102+4702 18 55 07 68.8 93.8 -2.1 -61.4 -44 353 No stop 02 22 00 =2100+468 18 56 53 69.1 94.2 -2.1 -61.3 61 355 02 20 16 02 22 30 G85.41 18 57 23 69.2 101.5 -2.0 -56.0 -15 355 02 22 30 02 25 45 --- 19 00 38 69.7 102.4 -1.9 -55.7 180 358 02 22 31 02 25 45 J2102+4702 19 00 38 69.7 95.1 -2.0 -61.2 -44 358 No stop 02 27 30 =2100+468 19 02 24 69.9 95.5 -2.0 -61.1 61 359 02 25 46 Schedule for JODRELL2 (Code Jb ) Page 12 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 ---------------------------------------------------------------------------------------- --- Tue 2 Jun 2020 Day 154 --- 02 28 00 G85.41 19 02 54 70.1 103.1 -1.9 -55.5 -16 359 02 28 00 02 31 15 --- 19 06 09 70.5 104.1 -1.8 -55.2 179 363 02 28 01 02 31 15 J2102+4702 19 06 09 70.5 96.4 -1.9 -60.9 -45 363 No stop 02 33 00 =2100+468 19 07 54 70.7 96.8 -1.9 -60.8 60 364 02 31 16 02 33 30 G85.41 19 08 24 70.9 104.8 -1.8 -54.9 -17 364 02 33 30 02 36 45 --- 19 11 40 71.3 105.8 -1.7 -54.5 178 367 02 33 31 02 36 45 J2102+4702 19 11 40 71.3 97.8 -1.9 -60.6 -46 367 No stop 02 38 30 =2100+468 19 13 25 71.6 98.3 -1.8 -60.5 59 369 02 36 46 02 39 00 G85.41 19 13 55 71.7 106.5 -1.7 -54.2 -18 369 02 39 00 02 42 15 --- 19 17 11 72.1 107.6 -1.6 -53.8 177 372 02 39 01 02 42 15 J2102+4702 19 17 11 72.1 99.3 -1.8 -60.2 -47 372 No stop 02 44 00 =2100+468 19 18 56 72.4 99.8 -1.7 -60.1 58 374 02 42 16 02 44 30 G85.41 19 19 26 72.4 108.4 -1.6 -53.4 -19 374 02 44 30 02 47 45 --- 19 22 42 72.9 109.5 -1.5 -52.9 176 377 02 44 31 02 47 45 J2102+4702 19 22 42 72.9 100.8 -1.7 -59.7 -48 377 No stop 02 49 30 =2100+468 19 24 27 73.2 101.4 -1.6 -59.6 57 379 02 47 46 02 50 00 G85.41 19 24 57 73.2 110.4 -1.5 -52.5 -20 379 02 50 00 02 53 15 --- 19 28 13 73.7 111.6 -1.4 -51.9 175 382 02 50 01 02 53 15 J2102+4702 19 28 13 73.7 102.5 -1.6 -59.2 -49 382 No stop 02 55 00 =2100+468 19 29 58 74.0 103.1 -1.6 -59.0 56 384 02 53 16 02 55 30 G85.41 19 30 28 74.0 112.5 -1.4 -51.4 -22 384 02 55 30 02 58 45 --- 19 33 44 74.4 113.8 -1.4 -50.7 173 387 02 55 31 02 58 45 J2102+4702 19 33 44 74.5 104.3 -1.5 -58.5 -51 387 No stop 03 00 30 =2100+468 19 35 29 74.8 104.9 -1.5 -58.2 54 388 02 58 46 03 01 00 G85.41 19 35 59 74.7 114.8 -1.3 -50.2 -23 388 03 01 00 03 04 15 --- 19 39 15 75.2 116.2 -1.3 -49.4 172 392 03 01 01 03 04 15 J2102+4702 19 39 15 75.3 106.2 -1.4 -57.6 -52 392 No stop 03 06 00 =2100+468 19 41 00 75.6 106.8 -1.4 -57.3 53 393 03 04 16 03 06 30 G85.41 19 41 30 75.5 117.3 -1.2 -48.8 -25 393 03 06 30 03 11 15 --- 19 46 16 76.1 119.5 -1.1 -47.4 260 398 03 06 31 Schedule for JODRELL2 (Code Jb ) Page 13 EVN mapping of 6.7 GHz maser in accretion burst candidate. 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 ---------------------------------------------------------------------------------------- --- Tue 2 Jun 2020 Day 154 --- 03 11 15 J2102+4702 19 46 16 76.3 108.9 -1.3 -56.3 -54 398 No stop 03 14 00 =2100+468 19 49 01 76.7 110.0 -1.2 -55.8 111 400 03 11 16 03 23 00 2007+777 19 58 03 65.3 0.8 -0.1 -177.6 191 400 03 23 00 03 30 00 --- 20 05 04 65.3 -0.0 0.0 179.9 420 407 03 23 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess220.M128line --- 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: 3 Station: JODRELL2 Total bit rate: 128 Format: VDIF Bits per sample: 2 Sample rate: 4.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 7438.00 7438.00 7438.00 7438.00 7438.00 7438.00 7438.00 7438.00 7438.00 7438.00 7438.00 7438.00 7438.00 7438.00 7438.00 7438.00 Net SB= 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 Pol. = 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 BBC SB= U U L L U U L L U U L L U U L L IF = A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 The following frequency sets based on these setups were used. Frequency Set: 1 Based on FREQ, BW, and/or DOPPLER in schedule. Used with PCAL = off LO sum= 6662.86 6662.86 6662.86 6662.86 6666.86 6666.86 6666.86 6666.86 6670.86 6670.86 6670.86 6670.86 6674.86 6674.86 6674.86 6674.86 BBC fr= 775.14 775.14 775.14 775.14 771.14 771.14 771.14 771.14 767.14 767.14 767.14 767.14 763.14 763.14 763.14 763.14 Bandwd= 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 Matching frequency sets: 1 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * G85.41 20 52 28.152532 * 20 54 13.680000 20 54 56.931921 0.00 44 42 39.95224 * 44 54 07.60000 44 58 31.06386 0.00 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: -29.00 -29.00 -29.00 -29.00 -29.00 -29.00 -29.00 -29.00 -29.00 -29.00 -29.00 -29.00 -29.00 -29.00 * 2007+777 20 07 20.430197 * 20 05 30.998526 20 04 50.053584 0.04 J2005+7752 77 43 58.12301 * 77 52 43.24754 77 55 57.05683 0.01 J2005+77 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 15674 observations. Doppler based on other sources. 2100+468 21 00 33.500167 * 21 02 17.056074 21 02 59.495932 0.38 * J2102+4702 46 50 23.37641 * 47 02 16.25338 47 06 49.12771 0.39 J2102+47 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 41 observations. Doppler based on other sources. 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 G85.41 sess220.M128line 1 2 3 4 6 8 10 11 12 4.304 260.094 2007+777 sess220.M128line 1 2 3 4 6 8 10 11 12 0.342 21.122 J2102+4702 sess220.M128line 1 2 3 4 6 8 10 11 12 2.379 112.611 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) G85.41 91.5 2007+777 75.7 J2102+4702 89.2 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