COVER INFORMATION Station: HART (Code Hh ) Experiment: EVN+LBA NLS1 polarisation Exp. Code: eg088 Schedule Version: 6.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Marcello Giroletti Address: INAF/IRA Phone: +39 051 6399394 EMAIL: giroletti@ira.inaf.it Fax: +39 051 6399431 Phone during observation: +39 051 6399394 Observing mode: Notes: v3: LBA = Mopra, Hobart, ATCA v4: move sky-freq range up, modify LBA patchings, 2 ways for HOB v5: HOB -> HOB_MK5; patching from Jamie v6: gaps adjusted prior to calibrators for more on-source Tsys Schedule for HART (Code Hh ) Page 2 EVN+LBA NLS1 polarisation 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 14 Jun 2016 Day 166 --- Next scan frequencies: 22268.00 22268.00 22268.00 22268.00 22300.00 22300.00 22300.00 22300.00 22332.00 22332.00 22332.00 22332.00 22364.00 22364.00 22364.00 22364.00 Next BBC frequencies: 188.00 188.00 188.00 188.00 220.00 220.00 220.00 220.00 252.00 252.00 252.00 252.00 284.00 284.00 284.00 284.00 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 09 20 25 OJ287 04 43 35 13.5 59.4 -4.2 0.0 0 0 09 20 25 09 24 00 --- 04 47 11 14.2 58.9 -4.1 0.0 215 28 09 20 26 09 25 00 OJ287 04 48 11 14.4 58.8 -4.1 0.0 39 28 09 25 00 09 29 40 --- 04 52 52 15.3 58.2 -4.0 0.0 280 63 09 25 01 09 30 00 OJ287 04 53 12 15.4 58.1 -4.0 0.0 -1 63 09 30 00 09 34 40 --- 04 57 52 16.2 57.4 -4.0 0.0 279 99 09 30 01 09 35 00 OJ287 04 58 12 16.3 57.4 -4.0 0.0 -1 99 09 35 00 09 39 40 --- 05 02 53 17.2 56.7 -3.9 0.0 279 135 09 35 01 10 20 40 OJ287 05 44 00 24.6 50.1 -3.2 0.0 2437 135 10 20 40 10 24 40 --- 05 48 01 25.3 49.4 -3.1 0.0 240 166 10 20 41 10 25 00 OJ287 05 48 21 25.4 49.3 -3.1 0.0 -1 166 10 25 00 10 29 40 --- 05 53 01 26.2 48.5 -3.0 0.0 279 202 10 25 01 10 30 00 OJ287 05 53 21 26.2 48.4 -3.0 0.0 -1 202 10 30 00 10 34 40 --- 05 58 02 27.0 47.6 -3.0 0.0 279 238 10 30 01 10 35 00 OJ287 05 58 22 27.1 47.5 -3.0 0.0 -1 238 10 35 00 10 38 00 --- 06 01 23 27.5 46.9 -2.9 0.0 179 261 10 35 01 10 40 00 J0948+0022 06 03 23 29.5 73.6 -3.8 0.0 53 261 10 40 00 10 49 40 =0946+006 06 13 05 31.6 72.2 -3.6 0.0 580 335 10 40 01 10 50 00 J0948+0022 06 13 25 31.7 72.2 -3.6 0.0 -1 335 10 50 00 10 59 40 =0946+006 06 23 06 33.8 70.7 -3.4 0.0 579 410 10 50 01 11 00 00 J0948+0022 06 23 26 33.8 70.6 -3.4 0.0 -1 410 11 00 00 11 09 40 =0946+006 06 33 08 35.9 69.0 -3.3 0.0 579 484 11 00 01 11 10 00 J0948+0022 06 33 28 35.9 69.0 -3.3 0.0 -1 484 11 10 00 11 19 40 =0946+006 06 43 10 38.0 67.3 -3.1 0.0 579 558 11 10 01 11 20 00 OJ287 06 43 30 34.0 38.2 -2.2 0.0 -47 558 11 20 00 11 24 00 --- 06 47 30 34.5 37.2 -2.1 0.0 193 589 11 20 01 Schedule for HART (Code Hh ) Page 3 EVN+LBA NLS1 polarisation 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 14 Jun 2016 Day 166 --- 11 40 00 J0948+0022 07 03 33 42.1 63.5 -2.8 0.0 893 589 11 40 00 11 49 40 =0946+006 07 13 15 44.1 61.5 -2.6 0.0 580 663 11 40 01 11 50 00 J0948+0022 07 13 35 44.1 61.4 -2.6 0.0 -1 663 11 50 00 11 59 40 =0946+006 07 23 16 46.0 59.2 -2.4 0.0 579 738 11 50 01 12 00 00 J0948+0022 07 23 36 46.1 59.2 -2.4 0.0 -1 738 12 00 00 12 09 40 =0946+006 07 33 18 47.9 56.9 -2.3 0.0 579 812 12 00 01 12 10 00 J0948+0022 07 33 38 48.0 56.8 -2.3 0.0 -1 812 12 10 00 12 19 40 =0946+006 07 43 19 49.8 54.3 -2.1 0.0 579 887 12 10 01 12 20 00 OJ287 07 43 40 40.8 22.6 -1.2 0.0 -47 887 12 20 00 12 24 00 --- 07 47 40 41.2 21.4 -1.1 0.0 193 917 12 20 01 12 25 00 J1222+0413 07 48 40 17.2 76.5 -4.6 0.0 -70 917 12 25 00 12 29 00 =1219+044 07 52 41 18.1 76.0 -4.5 0.0 170 948 12 25 01 12 30 00 3C279 07 53 41 15.3 89.2 -5.1 0.0 13 948 12 30 00 12 34 00 --- 07 57 42 16.2 88.7 -5.0 0.0 240 979 12 30 01 12 40 00 J0948+0022 08 03 43 53.4 48.5 -1.8 0.0 238 979 12 40 00 12 49 40 =0946+006 08 13 24 55.0 45.4 -1.6 0.0 580 1053 12 40 01 12 50 00 J0948+0022 08 13 44 55.0 45.2 -1.6 0.0 -1 1053 12 50 00 12 59 40 =0946+006 08 23 26 56.5 41.9 -1.4 0.0 579 1128 12 50 01 13 00 00 J0948+0022 08 23 46 56.6 41.7 -1.4 0.0 -1 1128 13 00 00 13 09 40 =0946+006 08 33 28 58.0 38.1 -1.3 0.0 579 1202 13 00 01 13 10 00 J0948+0022 08 33 48 58.0 37.9 -1.3 0.0 -1 1202 13 10 00 13 19 40 =0946+006 08 43 29 59.3 34.0 -1.1 0.0 579 1276 13 10 01 13 20 00 OJ287 08 43 49 44.0 3.9 -0.2 0.0 -47 1276 13 20 00 13 24 00 --- 08 47 50 44.0 2.6 -0.1 0.0 193 1307 13 20 01 13 25 00 J1222+0413 08 48 50 30.1 68.1 -3.6 0.0 -70 1307 13 25 00 13 29 00 =1219+044 08 52 51 30.9 67.4 -3.5 0.0 170 1338 13 25 01 13 30 00 3C279 08 53 51 28.8 82.1 -4.1 0.0 13 1338 13 30 00 13 34 00 --- 08 57 52 29.7 81.6 -4.0 0.0 240 1369 13 30 01 13 40 00 J0948+0022 09 03 53 61.6 24.7 -0.8 0.0 238 1369 13 40 00 13 49 40 =0946+006 09 13 34 62.4 19.9 -0.6 0.0 580 1443 13 40 01 Schedule for HART (Code Hh ) Page 4 EVN+LBA NLS1 polarisation 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 14 Jun 2016 Day 166 --- 13 50 00 J0948+0022 09 13 54 62.4 19.7 -0.6 0.0 -1 1443 13 50 00 13 59 40 =0946+006 09 23 36 63.1 14.6 -0.4 0.0 579 1517 13 50 01 14 00 00 J0948+0022 09 23 56 63.1 14.4 -0.4 0.0 -1 1517 14 00 00 14 09 40 =0946+006 09 33 38 63.5 9.1 -0.3 0.0 579 1592 14 00 01 14 10 00 J0948+0022 09 33 58 63.5 8.9 -0.3 0.0 -1 1592 14 10 00 14 19 40 =0946+006 09 43 39 63.8 3.5 -0.1 0.0 579 1666 14 10 01 14 20 00 OJ287 09 43 59 42.6 344.5 0.8 0.0 -47 1666 14 20 00 14 24 00 --- 09 48 00 42.3 343.3 0.9 0.0 193 1697 14 20 01 14 25 00 J1222+0413 09 49 00 42.1 56.9 -2.6 0.0 -70 1697 14 25 00 14 29 00 =1219+044 09 53 01 42.8 56.0 -2.5 0.0 170 1728 14 25 01 14 30 00 3C279 09 54 01 42.0 73.5 -3.1 0.0 13 1728 14 30 00 14 34 00 --- 09 58 02 42.9 72.8 -3.0 0.0 240 1758 14 30 01 14 35 40 OQ208 09 59 42 9.4 52.0 -4.1 0.0 4 1758 14 35 40 14 39 00 --- 10 03 02 10.0 51.5 -4.1 0.0 200 1784 14 35 41 14 40 00 J0948+0022 10 04 03 63.6 352.0 0.2 0.0 -97 1784 14 40 00 14 49 40 =0946+006 10 13 44 63.2 346.6 0.4 0.0 483 1858 14 40 01 14 50 00 J0948+0022 10 14 04 63.2 346.4 0.4 0.0 -1 1858 14 50 00 14 59 40 =0946+006 10 23 46 62.6 341.3 0.6 0.0 579 1933 14 50 01 15 00 00 J0948+0022 10 24 06 62.5 341.1 0.6 0.0 -1 1933 15 00 00 15 09 40 =0946+006 10 33 47 61.7 336.2 0.7 0.0 579 2007 15 00 01 15 10 00 J0948+0022 10 34 07 61.7 336.1 0.7 0.0 -1 2007 15 10 00 15 19 40 =0946+006 10 43 49 60.7 331.4 0.9 0.0 579 2081 15 10 01 15 21 10 OJ287 10 45 19 36.9 327.3 1.8 0.0 23 2081 15 21 10 15 24 00 --- 10 48 10 36.6 326.6 1.9 0.0 170 2103 15 21 11 15 25 00 J1222+0413 10 49 10 52.3 40.6 -1.6 0.0 -70 2103 15 25 00 15 29 00 =1219+044 10 53 11 52.9 39.3 -1.5 0.0 170 2134 15 25 01 15 30 00 3C279 10 54 11 54.5 61.0 -2.0 0.0 13 2134 15 30 00 15 34 00 --- 10 58 11 55.3 60.0 -2.0 0.0 240 2165 15 30 01 15 36 20 OQ208 11 00 32 19.5 42.9 -3.1 0.0 44 2165 15 36 20 15 39 00 --- 11 03 12 19.9 42.4 -3.1 0.0 160 2185 15 36 21 Schedule for HART (Code Hh ) Page 5 EVN+LBA NLS1 polarisation 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 14 Jun 2016 Day 166 --- 15 40 00 1502+036 11 04 12 24.7 72.8 -4.0 0.0 -17 2185 15 40 00 15 49 40 --- 11 13 54 26.7 71.5 -3.9 0.0 563 2260 15 40 01 15 50 00 1502+036 11 14 14 26.8 71.4 -3.9 0.0 -1 2260 15 50 00 15 59 40 --- 11 23 56 28.9 70.0 -3.7 0.0 579 2334 15 50 01 16 00 00 1502+036 11 24 16 28.9 69.9 -3.7 0.0 -1 2334 16 00 00 16 09 40 --- 11 33 57 31.0 68.4 -3.5 0.0 579 2408 16 00 01 16 10 00 1502+036 11 34 17 31.1 68.4 -3.5 0.0 -1 2408 16 10 00 16 19 40 --- 11 43 59 33.1 66.8 -3.4 0.0 579 2483 16 10 01 16 20 00 J0948+0022 11 44 19 51.9 309.0 1.9 0.0 -167 2483 16 20 00 16 23 00 =0946+006 11 47 19 51.4 308.1 2.0 0.0 13 2506 16 20 01 16 24 40 OJ287 11 49 00 27.7 313.3 2.9 0.0 33 2506 16 24 40 16 27 00 --- 11 51 20 27.3 312.8 2.9 0.0 140 2524 16 24 41 16 28 00 J1222+0413 11 52 20 59.1 15.1 -0.5 0.0 -70 2524 16 28 00 16 31 00 =1219+044 11 55 21 59.2 13.7 -0.5 0.0 110 2547 16 28 01 16 32 00 3C279 11 56 21 65.3 38.5 -1.0 0.0 13 2547 16 32 00 16 35 00 --- 11 59 21 65.7 37.0 -1.0 0.0 180 2570 16 32 01 16 36 00 OQ208 12 00 22 27.7 31.6 -2.1 0.0 -36 2570 16 36 00 16 39 00 --- 12 03 22 28.0 31.0 -2.1 0.0 144 2593 16 36 01 16 39 20 1502+036 12 03 42 37.1 63.3 -3.0 0.0 -57 2593 16 39 20 16 49 00 --- 12 13 24 39.0 61.5 -2.9 0.0 523 2667 16 39 21 16 49 20 1502+036 12 13 44 39.1 61.4 -2.9 0.0 -1 2667 16 49 20 16 59 00 --- 12 23 25 41.0 59.4 -2.7 0.0 579 2742 16 49 21 16 59 20 1502+036 12 23 45 41.0 59.4 -2.7 0.0 -1 2742 16 59 20 17 09 00 --- 12 33 27 42.9 57.3 -2.5 0.0 579 2816 16 59 21 17 09 20 1502+036 12 33 47 43.0 57.2 -2.5 0.0 -1 2816 17 09 20 17 19 00 --- 12 43 29 44.8 55.0 -2.4 0.0 579 2890 17 09 21 17 21 25 OQ208 12 45 54 32.3 21.3 -1.4 0.0 68 2890 17 21 25 17 24 00 --- 12 48 29 32.5 20.7 -1.3 0.0 155 2910 17 21 26 17 26 30 3C279 12 51 00 69.9 4.4 -0.1 0.0 54 2910 17 26 30 17 29 00 --- 12 53 30 70.0 2.6 -0.1 0.0 150 2929 17 26 31 Schedule for HART (Code Hh ) Page 6 EVN+LBA NLS1 polarisation 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 14 Jun 2016 Day 166 --- 17 30 00 J1222+0413 12 54 30 59.0 344.7 0.5 0.0 13 2929 17 30 00 17 34 00 =1219+044 12 58 31 58.8 342.8 0.6 0.0 240 2960 17 30 01 17 35 00 J0948+0022 12 59 31 37.3 292.2 3.2 0.0 -44 2960 17 35 00 17 39 00 =0946+006 13 03 32 36.5 291.5 3.2 0.0 196 2991 17 35 01 17 40 00 OJ287 13 04 32 14.2 301.0 4.1 0.0 -7 2991 17 40 00 17 44 00 --- 13 08 33 13.4 300.5 4.2 0.0 233 3022 17 40 01 17 45 00 1502+036 13 09 33 49.4 48.2 -1.9 0.0 -151 3022 17 45 00 17 54 40 --- 13 19 15 51.0 45.4 -1.8 0.0 429 3096 17 45 01 17 55 00 1502+036 13 19 35 51.0 45.3 -1.8 0.0 -1 3096 17 55 00 18 04 40 --- 13 29 16 52.5 42.2 -1.6 0.0 579 3171 17 55 01 18 05 00 1502+036 13 29 36 52.6 42.1 -1.6 0.0 -1 3171 18 05 00 18 09 00 --- 13 33 37 53.2 40.8 -1.5 0.0 239 3201 18 05 01 18 10 00 OQ208 13 34 37 35.1 8.9 -0.6 0.0 -17 3201 18 10 00 18 13 00 --- 13 37 38 35.2 8.1 -0.5 0.0 163 3224 18 10 01 18 14 00 3C279 13 38 38 67.7 331.8 0.7 0.0 -36 3224 18 14 00 18 17 00 --- 13 41 38 67.3 330.1 0.7 0.0 144 3247 18 14 01 18 18 00 J1222+0413 13 42 38 54.3 324.5 1.3 0.0 13 3247 18 18 00 18 21 00 =1219+044 13 45 39 53.9 323.4 1.4 0.0 180 3271 18 18 01 18 22 00 J0948+0022 13 46 39 27.3 284.9 3.9 0.0 -44 3271 18 22 00 18 26 00 =0946+006 13 50 40 26.4 284.3 4.0 0.0 196 3301 18 22 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess216.K1024lba Matching groups in /home/guest/rmc/SCHED/sched11.4/catalogs/freq_RDBE.dat: hh1cm Values confirmed by E-mail Jonathan Quick 20140219 (CR) ****** Only 64.00 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 8 Station: HART Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 22080.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 3 11 3 11 5 13 5 13 7 15 7 15 BBC SB= L L U U L L U U L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 B1 C1 B1 C1 B1 C1 B1 C1 The following frequency sets based on these setups were used. Frequency Set: 20 Setup file default. Used with PCAL = off LO sum= 22268.00 22268.00 22268.00 22268.00 22300.00 22300.00 22300.00 22300.00 22332.00 22332.00 22332.00 22332.00 22364.00 22364.00 22364.00 22364.00 BBC fr= 188.00 188.00 188.00 188.00 220.00 220.00 220.00 220.00 252.00 252.00 252.00 252.00 284.00 284.00 284.00 284.00 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 20 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * OJ287 08 51 57.250615 * 08 54 48.874926 08 55 43.881481 0.00 J0854+2006 20 17 58.41743 * 20 06 30.64088 20 02 41.09779 0.00 0851+202 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc J0854+20 GSFC 2015a astro solution, unpublished 216540 observations. 0946+006 09 46 23.258628 * 09 48 57.320061 09 49 47.107664 0.29 * J0948+0022 00 36 25.20249 * 00 22 25.55969 00 17 43.46555 0.48 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 89 observations. 1219+044 12 19 49.255032 * 12 22 22.549621 12 23 12.942425 0.00 * J1222+0413 04 29 53.60838 * 04 13 15.77617 04 07 50.89040 0.01 J1222+04 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 33106 observations. * 3C279 12 53 35.831301 * 12 56 11.166568 12 57 02.565330 0.66 J1256-0547 -05 31 07.99614 *-05 47 21.52500 -05 52 40.04358 0.93 1253-055 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc J1256-05 GSFC 2015a astro solution, unpublished 7533 observations. * OQ208 14 04 45.615156 * 14 07 00.394414 14 07 45.121141 0.24 J1407+2827 28 41 29.23518 * 28 27 14.69022 28 22 47.86804 0.34 1404+286 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc J1407+28 GSFC 2015a astro solution, unpublished 67871 observations. * 1502+036 15 02 35.669005 * 15 05 06.477159 15 05 56.896449 0.01 J1505+0326 03 38 07.37356 * 03 26 30.81267 03 22 51.28008 0.01 J1505+03 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 5966 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 OJ287 sess216.K1024lba 1 2 3 4 7 8 11 12 13 15 16 + 1.088 94.212 J0948+0022 sess216.K1024lba 1 2 3 4 7 8 11 12 13 15 16 + 4.806 369.374 J1222+0413 sess216.K1024lba 1 2 3 4 7 8 11 12 13 15 16 + 0.606 41.771 3C279 sess216.K1024lba 1 2 3 4 7 8 11 12 13 15 16 + 0.608 40.303 OQ208 sess216.K1024lba 1 2 3 4 7 8 11 12 13 15 16 + 0.796 49.875 1502+036 sess216.K1024lba 1 2 3 4 7 8 11 12 13 15 16 + 4.689 273.738 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) OJ287 46.9 J0948+0022 66.2 J1222+0413 99.7 3C279 111.5 OQ208 108.4 1502+036 135.2 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