COVER INFORMATION Station: ONSALA85 (Code O8 ) Experiment: Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales Exp. Code: EG131H Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Salmoli Ghosh Address: National Centre for Radio Astrophysics - TIFR S.P. Pune Univ. Campus, Ganeshkhind Pune India : 411007 Phone: (+91)020-25719000 EMAIL: salmoli.ghosh@gmail.com Fax: Phone during observation: (+91)8240982699/(+91)020-25719230 Observing mode: Phase-referencing continuum Notes: PCAL OFF Schedule for ONSALA85 (Code O8 ) Page 2 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 ---------------------------------------------------------------------------------------- --- Sun 2 Mar 2025 Day 61 --- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 896.49 896.49 896.49 896.49 960.49 960.49 960.49 960.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 13 30 00 3C84 01 00 03 62.6 109.8 -2.4 0.0 0 0 13 30 00 13 37 00 --- 01 07 04 63.5 112.0 -2.2 0.0 420 54 13 30 01 13 42 00 J0310-0823 01 12 05 19.9 148.5 -2.0 0.0 87 54 13 42 00 13 47 00 =0307-085 01 17 05 20.3 149.7 -1.9 0.0 300 93 13 42 01 13 47 00 NGC1241 01 17 05 19.7 149.6 -1.9 0.0 -11 93 No stop 13 50 30 --- 01 20 36 19.9 150.5 -1.9 0.0 199 120 13 47 01 13 51 00 J0310-0823 01 21 06 20.6 150.7 -1.8 0.0 19 120 13 51 00 13 52 00 =0307-085 01 22 06 20.6 151.0 -1.8 0.0 60 128 13 51 01 13 52 00 NGC1241 01 22 06 20.0 150.8 -1.8 0.0 -11 128 No stop 13 55 30 --- 01 25 37 20.3 151.7 -1.8 0.0 199 155 13 52 01 13 55 30 J0310-0823 01 25 37 20.9 151.9 -1.8 0.0 -11 155 No stop 13 57 00 =0307-085 01 27 07 20.9 152.3 -1.7 0.0 79 166 13 55 31 13 57 00 NGC1241 01 27 07 20.4 152.1 -1.8 0.0 -11 166 No stop 14 00 30 --- 01 30 38 20.6 153.0 -1.7 0.0 199 193 13 57 01 14 01 00 J0310-0823 01 31 08 21.2 153.3 -1.7 0.0 19 193 14 01 00 14 02 00 =0307-085 01 32 08 21.3 153.6 -1.7 0.0 60 201 14 01 01 14 02 00 NGC1241 01 32 08 20.7 153.4 -1.7 0.0 -11 201 No stop 14 05 30 --- 01 35 38 20.9 154.3 -1.6 0.0 199 228 14 02 01 14 05 30 J0310-0823 01 35 38 21.5 154.5 -1.6 0.0 -11 228 No stop 14 07 00 =0307-085 01 37 09 21.5 154.9 -1.6 0.0 79 240 14 05 31 14 07 00 NGC1241 01 37 09 21.0 154.7 -1.6 0.0 -11 240 No stop 14 10 30 --- 01 40 39 21.2 155.6 -1.5 0.0 199 267 14 07 01 14 11 00 J0310-0823 01 41 09 21.8 155.9 -1.5 0.0 19 267 14 11 00 14 12 00 =0307-085 01 42 09 21.8 156.2 -1.5 0.0 60 274 14 11 01 14 12 00 NGC1241 01 42 09 21.2 156.0 -1.5 0.0 -11 274 No stop 14 15 30 --- 01 45 40 21.4 156.9 -1.4 0.0 199 301 14 12 01 14 15 30 J0310-0823 01 45 40 22.0 157.1 -1.4 0.0 -11 301 No stop 14 17 00 =0307-085 01 47 10 22.1 157.5 -1.4 0.0 79 313 14 15 31 Schedule for ONSALA85 (Code O8 ) Page 3 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 ---------------------------------------------------------------------------------------- --- Sun 2 Mar 2025 Day 61 --- 14 17 00 NGC1241 01 47 10 21.5 157.3 -1.4 0.0 -11 313 No stop 14 20 30 --- 01 50 41 21.7 158.2 -1.4 0.0 199 340 14 17 01 14 21 00 J0310-0823 01 51 11 22.3 158.5 -1.3 0.0 19 340 14 21 00 14 22 00 =0307-085 01 52 11 22.3 158.8 -1.3 0.0 60 348 14 21 01 14 22 00 NGC1241 01 52 11 21.8 158.6 -1.3 0.0 -11 348 No stop 14 25 30 --- 01 55 42 21.9 159.5 -1.3 0.0 199 375 14 22 01 14 25 30 J0310-0823 01 55 42 22.5 159.7 -1.3 0.0 -11 375 No stop 14 27 00 =0307-085 01 57 12 22.6 160.1 -1.2 0.0 79 386 14 25 31 14 27 00 NGC1241 01 57 12 22.0 159.9 -1.3 0.0 -11 386 No stop 14 30 30 --- 02 00 42 22.2 160.8 -1.2 0.0 199 414 14 27 01 14 31 00 J0310-0823 02 01 13 22.8 161.2 -1.2 0.0 19 414 14 31 00 14 32 00 =0307-085 02 02 13 22.8 161.4 -1.2 0.0 60 421 14 31 01 14 32 00 NGC1241 02 02 13 22.2 161.2 -1.2 0.0 -11 421 No stop 14 35 30 --- 02 05 43 22.4 162.1 -1.1 0.0 199 448 14 32 01 14 35 30 J0310-0823 02 05 43 23.0 162.4 -1.1 0.0 -11 448 No stop 14 37 00 =0307-085 02 07 14 23.0 162.8 -1.1 0.0 79 460 14 35 31 14 37 00 NGC1241 02 07 14 22.4 162.5 -1.1 0.0 -11 460 No stop 14 40 30 --- 02 10 44 22.6 163.5 -1.0 0.0 199 487 14 37 01 14 41 00 J0310-0823 02 11 14 23.2 163.8 -1.0 0.0 19 487 14 41 00 14 42 00 =0307-085 02 12 14 23.2 164.1 -1.0 0.0 60 495 14 41 01 14 42 00 NGC1241 02 12 14 22.6 163.9 -1.0 0.0 -11 495 No stop 14 45 30 --- 02 15 45 22.8 164.8 -0.9 0.0 199 522 14 42 01 14 45 30 J0310-0823 02 15 45 23.3 165.0 -0.9 0.0 -11 522 No stop 14 47 00 =0307-085 02 17 15 23.4 165.4 -0.9 0.0 79 533 14 45 31 14 47 00 NGC1241 02 17 15 22.8 165.2 -0.9 0.0 -11 533 No stop 14 50 30 --- 02 20 46 22.9 166.1 -0.9 0.0 199 560 14 47 01 14 51 00 J0310-0823 02 21 16 23.5 166.5 -0.8 0.0 19 560 14 51 00 14 52 00 =0307-085 02 22 16 23.5 166.8 -0.8 0.0 60 568 14 51 01 14 52 00 NGC1241 02 22 16 23.0 166.5 -0.8 0.0 -11 568 No stop 14 55 30 --- 02 25 47 23.1 167.4 -0.8 0.0 199 595 14 52 01 Schedule for ONSALA85 (Code O8 ) Page 4 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 ---------------------------------------------------------------------------------------- --- Sun 2 Mar 2025 Day 61 --- 14 55 30 J0310-0823 02 25 47 23.7 167.7 -0.8 0.0 -11 595 No stop 14 57 00 =0307-085 02 27 17 23.7 168.1 -0.7 0.0 79 607 14 55 31 14 57 00 NGC1241 02 27 17 23.1 167.8 -0.8 0.0 -11 607 No stop 15 00 30 --- 02 30 47 23.2 168.8 -0.7 0.0 199 634 14 57 01 15 01 00 J0310-0823 02 31 17 23.8 169.2 -0.7 0.0 19 634 15 01 00 15 02 00 =0307-085 02 32 18 23.8 169.5 -0.6 0.0 60 642 15 01 01 15 02 00 NGC1241 02 32 18 23.3 169.2 -0.7 0.0 -11 642 No stop 15 05 30 --- 02 35 48 23.4 170.1 -0.6 0.0 199 669 15 02 01 15 05 30 J0310-0823 02 35 48 23.9 170.4 -0.6 0.0 -11 669 No stop 15 07 00 =0307-085 02 37 18 23.9 170.8 -0.6 0.0 79 680 15 05 31 15 07 00 NGC1241 02 37 18 23.4 170.5 -0.6 0.0 -11 680 No stop 15 10 30 --- 02 40 49 23.5 171.5 -0.5 0.0 199 707 15 07 01 15 11 00 J0310-0823 02 41 19 24.0 171.9 -0.5 0.0 19 707 15 11 00 15 12 00 =0307-085 02 42 19 24.0 172.2 -0.5 0.0 60 715 15 11 01 15 12 00 NGC1241 02 42 19 23.5 171.9 -0.5 0.0 -11 715 No stop 15 15 30 --- 02 45 50 23.6 172.8 -0.4 0.0 199 742 15 12 01 15 15 30 J0310-0823 02 45 50 24.1 173.1 -0.4 0.0 -11 742 No stop 15 17 00 =0307-085 02 47 20 24.1 173.5 -0.4 0.0 79 754 15 15 31 15 17 00 NGC1241 02 47 20 23.6 173.2 -0.4 0.0 -11 754 No stop 15 20 30 --- 02 50 51 23.6 174.2 -0.4 0.0 199 781 15 17 01 15 21 00 J0310-0823 02 51 21 24.2 174.6 -0.3 0.0 19 781 15 21 00 15 22 00 =0307-085 02 52 21 24.2 174.9 -0.3 0.0 60 788 15 21 01 15 22 00 NGC1241 02 52 21 23.6 174.6 -0.3 0.0 -11 788 No stop 15 25 30 --- 02 55 52 23.7 175.5 -0.3 0.0 199 815 15 22 01 15 25 30 J0310-0823 02 55 52 24.2 175.8 -0.3 0.0 -11 815 No stop 15 27 00 =0307-085 02 57 22 24.2 176.2 -0.2 0.0 79 827 15 25 31 15 27 00 NGC1241 02 57 22 23.7 175.9 -0.3 0.0 -11 827 No stop 15 30 30 --- 03 00 52 23.7 176.9 -0.2 0.0 199 854 15 27 01 15 31 00 J0310-0823 03 01 22 24.3 177.3 -0.2 0.0 19 854 15 31 00 15 32 00 =0307-085 03 02 23 24.3 177.6 -0.1 0.0 60 862 15 31 01 Schedule for ONSALA85 (Code O8 ) Page 5 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 ---------------------------------------------------------------------------------------- --- Sun 2 Mar 2025 Day 61 --- 15 32 00 NGC1241 03 02 23 23.7 177.3 -0.2 0.0 -11 862 No stop 15 35 30 --- 03 05 53 23.8 178.2 -0.1 0.0 199 889 15 32 01 15 35 30 J0310-0823 03 05 53 24.3 178.5 -0.1 0.0 -11 889 No stop 15 37 00 =0307-085 03 07 23 24.3 179.0 -0.1 0.0 79 900 15 35 31 15 37 00 NGC1241 03 07 23 23.8 178.6 -0.1 0.0 -11 900 No stop 15 40 30 --- 03 10 54 23.8 179.6 -0.0 0.0 199 927 15 37 01 15 41 00 J0310-0823 03 11 24 24.3 180.0 0.0 0.0 19 927 15 41 00 15 42 00 =0307-085 03 12 24 24.3 180.3 0.0 0.0 60 935 15 41 01 15 42 00 NGC1241 03 12 24 23.8 180.0 -0.0 0.0 -11 935 No stop 15 45 30 --- 03 15 55 23.8 180.9 0.1 0.0 199 962 15 42 01 15 45 30 J0310-0823 03 15 55 24.3 181.3 0.1 0.0 -11 962 No stop 15 47 00 =0307-085 03 17 25 24.3 181.7 0.1 0.0 79 974 15 45 31 15 47 00 NGC1241 03 17 25 23.8 181.3 0.1 0.0 -11 974 No stop 15 50 30 --- 03 20 56 23.8 182.3 0.1 0.0 199 1001 15 47 01 15 51 00 J0310-0823 03 21 26 24.3 182.8 0.2 0.0 19 1001 15 51 00 15 52 00 =0307-085 03 22 26 24.3 183.0 0.2 0.0 60 1009 15 51 01 15 52 00 NGC1241 03 22 26 23.7 182.7 0.2 0.0 -11 1009 No stop 15 55 30 --- 03 25 56 23.7 183.6 0.2 0.0 199 1036 15 52 01 15 55 30 J0310-0823 03 25 56 24.2 184.0 0.2 0.0 -11 1036 No stop 15 57 00 =0307-085 03 27 27 24.2 184.4 0.3 0.0 79 1047 15 55 31 15 57 00 NGC1241 03 27 27 23.7 184.0 0.2 0.0 -11 1047 No stop 16 00 30 --- 03 30 57 23.7 185.0 0.3 0.0 199 1074 15 57 01 16 01 00 J0310-0823 03 31 27 24.2 185.5 0.3 0.0 19 1074 16 01 00 16 02 00 =0307-085 03 32 28 24.2 185.7 0.4 0.0 60 1082 16 01 01 16 02 00 NGC1241 03 32 28 23.7 185.4 0.3 0.0 -11 1082 No stop 16 05 30 --- 03 35 58 23.6 186.3 0.4 0.0 199 1109 16 02 01 16 05 30 J0310-0823 03 35 58 24.1 186.7 0.4 0.0 -11 1109 No stop 16 07 00 =0307-085 03 37 28 24.1 187.1 0.4 0.0 79 1121 16 05 31 16 07 00 NGC1241 03 37 28 23.6 186.7 0.4 0.0 -11 1121 No stop 16 10 30 --- 03 40 59 23.5 187.7 0.5 0.0 199 1148 16 07 01 Schedule for ONSALA85 (Code O8 ) Page 6 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 ---------------------------------------------------------------------------------------- --- Sun 2 Mar 2025 Day 61 --- 16 11 00 J0310-0823 03 41 29 24.0 188.2 0.5 0.0 19 1148 16 11 00 16 12 00 =0307-085 03 42 29 24.0 188.5 0.5 0.0 60 1156 16 11 01 16 12 00 NGC1241 03 42 29 23.5 188.1 0.5 0.0 -11 1156 No stop 16 15 30 --- 03 46 00 23.4 189.0 0.6 0.0 199 1183 16 12 01 16 15 30 J0310-0823 03 46 00 23.9 189.4 0.6 0.0 -11 1183 No stop 16 17 00 =0307-085 03 47 30 23.9 189.8 0.6 0.0 79 1194 16 15 31 16 17 00 NGC1241 03 47 30 23.4 189.4 0.6 0.0 -11 1194 No stop 16 20 30 --- 03 51 01 23.3 190.4 0.6 0.0 199 1221 16 17 01 16 21 00 J0310-0823 03 51 31 23.8 190.9 0.7 0.0 19 1221 16 21 00 16 22 00 =0307-085 03 52 31 23.8 191.2 0.7 0.0 60 1229 16 21 01 16 22 00 NGC1241 03 52 31 23.3 190.8 0.7 0.0 -11 1229 No stop 16 25 30 --- 03 56 01 23.2 191.7 0.7 0.0 199 1256 16 22 01 16 25 30 J0310-0823 03 56 01 23.7 192.1 0.7 0.0 -11 1256 No stop 16 27 00 =0307-085 03 57 32 23.6 192.5 0.8 0.0 79 1268 16 25 31 16 27 00 NGC1241 03 57 32 23.1 192.1 0.8 0.0 -11 1268 No stop 16 30 30 --- 04 01 02 23.0 193.1 0.8 0.0 199 1295 16 27 01 16 31 00 J0310-0823 04 01 32 23.5 193.6 0.8 0.0 19 1295 16 31 00 16 32 00 =0307-085 04 02 32 23.5 193.9 0.9 0.0 60 1302 16 31 01 16 32 00 NGC1241 04 02 32 23.0 193.5 0.8 0.0 -11 1302 No stop 16 35 30 --- 04 06 03 22.9 194.4 0.9 0.0 199 1329 16 32 01 16 35 30 J0310-0823 04 06 03 23.4 194.8 0.9 0.0 -11 1329 No stop 16 37 00 =0307-085 04 07 33 23.3 195.2 0.9 0.0 79 1341 16 35 31 16 37 00 NGC1241 04 07 33 22.8 194.8 0.9 0.0 -11 1341 No stop 16 40 30 --- 04 11 04 22.7 195.7 1.0 0.0 199 1368 16 37 01 16 41 00 J0310-0823 04 11 34 23.2 196.3 1.0 0.0 19 1368 16 41 00 16 42 00 =0307-085 04 12 34 23.1 196.5 1.0 0.0 60 1376 16 41 01 16 42 00 NGC1241 04 12 34 22.6 196.1 1.0 0.0 -11 1376 No stop 16 45 30 --- 04 16 05 22.5 197.0 1.1 0.0 199 1403 16 42 01 16 45 30 J0310-0823 04 16 05 23.0 197.5 1.1 0.0 -11 1403 No stop 16 47 00 =0307-085 04 17 35 22.9 197.9 1.1 0.0 79 1414 16 45 31 Schedule for ONSALA85 (Code O8 ) Page 7 Tracing the Radio Outflows in RQ AGN from Pc- to Kpc-scales 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 ---------------------------------------------------------------------------------------- --- Sun 2 Mar 2025 Day 61 --- 16 47 00 NGC1241 04 17 35 22.4 197.4 1.1 0.0 -11 1414 No stop 16 51 00 --- 04 21 36 22.3 198.5 1.2 0.0 229 1445 16 47 01 16 51 00 J0310-0823 04 21 36 22.7 198.9 1.2 0.0 -11 1445 No stop 16 53 00 =0307-085 04 23 36 22.7 199.4 1.2 0.0 109 1461 16 51 01 16 55 00 3C84 04 25 36 71.2 219.8 1.1 0.0 -93 1461 16 55 00 17 00 00 --- 04 30 37 70.7 222.4 1.2 0.0 207 1499 16 55 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess125.L1024 --- 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: 4 Station: ONSALA85 Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 730.00 730.00 730.00 730.00 730.00 730.00 730.00 730.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 5 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 BBC fr= 896.49 896.49 896.49 896.49 960.49 960.49 960.49 960.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 5 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) * NGC1241 03 08 48.674588 * 03 11 14.610000 03 12 27.755381 0.00 -09 06 35.71543 *-08 55 18.70000 -08 49 43.89682 0.00 From catalog imbedded in main SCHED input file. 0307-085 03 07 35.614122 * 03 10 02.049331 03 11 15.438452 0.21 * J0310-0823 -08 35 00.21166 *-08 23 39.29548 -08 18 02.39908 0.41 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 86 observations. * 3C84 03 16 29.567265 * 03 19 48.160096 03 21 27.593753 1.50 J0319+4130 41 19 51.91692 * 41 30 42.10404 41 36 19.13310 2.86 0316+413 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0319+41 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 NGC1241 sess125.L1024 1 2 3 4 5 7 8 9 10 2.167 141.978 J0310-0823 sess125.L1024 1 2 3 4 5 7 8 9 10 0.867 51.495 3C84 sess125.L1024 1 2 3 4 5 6 7 8 9 10 0.200 15.001 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) NGC1241 63.8 J0310-0823 63.5 3C84 77.7 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