COVER INFORMATION Station: TIANMA65 (Code T6 ) Experiment: ET048B Exp. Code: ET048B Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Oleg Titov Address: Geoscience Australia Cnr Jerrabomberra Avenue and Hindmarsh Drive Symonston ACT 2609 GPO Box 378 Canberra ACT 2601 Australia Phone: +61 2 6249 9064 EMAIL: Oleg.Titov@ga.gov.au Fax: Phone during observation: +61 2 6249 9064 Observing mode: Notes: Imaging extragalactic radio sources with extremely large radio-optical offsets Devided on 3 epochs: ET048A, ET048B, ET048C 6cm, 1024 Mbps, RCP & LCP, 2 bit sampling Prepared by Alexey Melnikov, aem@iaaras.ru Schedule for TIANMA65 (Code T6 ) Page 2 ET048B 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 ---------------------------------------------------------------------------------------- --- Thu 10 Mar 2022 Day 69 --- Next scan frequencies: 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 Next BBC frequencies: 758.49 758.49 758.49 758.49 822.49 822.49 822.49 822.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 09 30 00 J0205+3212 04 46 43 56.1 -77.2 2.7 81.1 0 0 09 30 00 09 38 00 =0202+319 04 54 45 54.4 -76.7 2.8 80.4 480 62 09 30 01 09 39 00 J0112+3208 04 55 45 43.4 -73.3 3.7 75.9 14 62 09 39 00 09 44 00 =0110+318 05 00 46 42.3 -72.9 3.8 75.5 300 100 09 39 01 09 44 00 J0112+3208 05 00 46 42.3 -72.9 3.8 75.5 -2 100 No stop 09 45 30 =0110+318 05 02 16 42.0 -72.8 3.8 75.3 88 112 09 44 01 09 45 30 0116+319 05 02 16 43.4 -73.2 3.7 75.9 -7 112 No stop 09 49 00 --- 05 05 46 42.7 -73.0 3.7 75.6 203 139 09 45 31 09 49 00 J0112+3208 05 05 46 41.3 -72.6 3.9 75.0 -8 139 No stop 09 50 30 =0110+318 05 07 17 41.0 -72.4 3.9 74.9 82 151 09 49 01 09 50 30 0116+319 05 07 17 42.4 -72.9 3.8 75.5 -7 151 No stop 09 54 00 --- 05 10 47 41.7 -72.6 3.8 75.2 203 178 09 50 31 09 54 40 J0112+3208 05 11 27 40.1 -72.1 4.0 74.5 32 178 09 54 40 09 56 10 =0110+318 05 12 58 39.8 -72.0 4.0 74.4 90 189 09 54 41 09 56 10 0116+319 05 12 58 41.2 -72.5 3.9 75.0 -7 189 No stop 09 59 40 --- 05 16 28 40.5 -72.2 3.9 74.7 203 216 09 56 11 09 59 40 J0112+3208 05 16 28 39.1 -71.8 4.0 74.1 -8 216 No stop 10 01 10 =0110+318 05 17 58 38.8 -71.7 4.1 74.0 82 228 09 59 41 10 01 10 0116+319 05 17 58 40.2 -72.1 4.0 74.6 -7 228 No stop 10 04 40 --- 05 21 29 39.5 -71.8 4.0 74.3 203 255 10 01 11 10 05 20 J0112+3208 05 22 09 38.0 -71.3 4.1 73.6 32 255 10 05 20 10 06 50 =0110+318 05 23 39 37.7 -71.2 4.2 73.5 90 267 10 05 21 10 06 50 0116+319 05 23 39 39.0 -71.7 4.0 74.1 -7 267 No stop 10 10 20 --- 05 27 10 38.3 -71.4 4.1 73.8 203 294 10 06 51 10 10 20 J0112+3208 05 27 10 37.0 -71.0 4.2 73.2 -8 294 No stop 10 11 50 =0110+318 05 28 40 36.7 -70.8 4.2 73.0 82 305 10 10 21 10 11 50 0116+319 05 28 40 38.0 -71.3 4.1 73.7 -7 305 No stop 10 15 20 --- 05 32 11 37.3 -71.0 4.2 73.4 203 332 10 11 51 Schedule for TIANMA65 (Code T6 ) Page 3 ET048B 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 ---------------------------------------------------------------------------------------- --- Thu 10 Mar 2022 Day 69 --- 10 16 00 J0112+3208 05 32 51 35.8 -70.5 4.3 72.7 32 332 10 16 00 10 17 30 =0110+318 05 34 21 35.5 -70.4 4.3 72.5 90 344 10 16 01 10 17 30 0116+319 05 34 21 36.9 -70.9 4.2 73.2 -7 344 No stop 10 21 00 --- 05 37 52 36.2 -70.6 4.3 72.9 203 371 10 17 31 10 21 00 J0112+3208 05 37 52 34.8 -70.1 4.4 72.2 -8 371 No stop 10 22 30 =0110+318 05 39 22 34.5 -70.0 4.4 72.1 82 383 10 21 01 10 22 30 0116+319 05 39 22 35.9 -70.5 4.3 72.7 -7 383 No stop 10 26 00 --- 05 42 52 35.2 -70.2 4.4 72.4 203 410 10 22 31 10 26 40 J0112+3208 05 43 33 33.7 -69.7 4.5 71.7 32 410 10 26 40 10 28 10 =0110+318 05 45 03 33.4 -69.6 4.5 71.6 90 421 10 26 41 10 28 10 0116+319 05 45 03 34.7 -70.1 4.4 72.2 -7 421 No stop 10 31 40 --- 05 48 33 34.0 -69.8 4.5 71.9 203 448 10 28 11 10 31 40 J0112+3208 05 48 33 32.6 -69.3 4.6 71.3 -8 448 No stop 10 33 10 =0110+318 05 50 04 32.3 -69.2 4.6 71.1 82 460 10 31 41 10 33 10 0116+319 05 50 04 33.7 -69.7 4.5 71.8 -7 460 No stop 10 36 40 --- 05 53 34 33.0 -69.4 4.5 71.5 203 487 10 33 11 10 37 20 J0112+3208 05 54 14 31.5 -68.8 4.7 70.8 32 487 10 37 20 10 38 50 =0110+318 05 55 45 31.2 -68.7 4.7 70.6 90 499 10 37 21 10 38 50 0116+319 05 55 45 32.6 -69.2 4.6 71.3 -7 499 No stop 10 42 20 --- 05 59 15 31.9 -68.9 4.6 71.0 203 526 10 38 51 10 42 20 J0112+3208 05 59 15 30.5 -68.4 4.8 70.3 -8 526 No stop 10 43 50 =0110+318 06 00 45 30.2 -68.3 4.8 70.2 82 537 10 42 21 10 43 50 0116+319 06 00 45 31.6 -68.8 4.7 70.8 -7 537 No stop 10 47 20 --- 06 04 16 30.9 -68.5 4.7 70.5 203 564 10 43 51 10 48 00 J0112+3208 06 04 56 29.4 -67.9 4.8 69.8 32 564 10 48 00 10 49 30 =0110+318 06 06 26 29.1 -67.8 4.9 69.7 90 576 10 48 01 10 49 30 0116+319 06 06 26 30.4 -68.3 4.8 70.3 -7 576 No stop 10 53 00 --- 06 09 57 29.7 -68.0 4.8 70.0 203 603 10 49 31 10 53 00 J0112+3208 06 09 57 28.4 -67.5 4.9 69.3 -7 603 No stop 10 54 30 =0110+318 06 11 27 28.1 -67.4 5.0 69.2 83 614 10 53 01 Schedule for TIANMA65 (Code T6 ) Page 4 ET048B 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 ---------------------------------------------------------------------------------------- --- Thu 10 Mar 2022 Day 69 --- 10 54 30 0116+319 06 11 27 29.4 -67.9 4.8 69.8 -7 614 No stop 10 58 00 --- 06 14 58 28.7 -67.6 4.9 69.5 203 642 10 54 31 10 58 40 J0112+3208 06 15 38 27.3 -67.0 5.0 68.8 33 642 10 58 40 11 00 10 =0110+318 06 17 08 27.0 -66.9 5.1 68.7 90 653 10 58 41 11 00 10 0116+319 06 17 08 28.3 -67.4 4.9 69.3 -7 653 No stop 11 03 40 --- 06 20 39 27.6 -67.1 5.0 69.0 203 680 11 00 11 11 03 40 J0112+3208 06 20 39 26.3 -66.6 5.1 68.3 -7 680 No stop 11 05 10 =0110+318 06 22 09 26.0 -66.5 5.1 68.2 83 692 11 03 41 11 05 10 0116+319 06 22 09 27.3 -67.0 5.0 68.8 -7 692 No stop 11 08 40 --- 06 25 39 26.6 -66.7 5.1 68.5 203 719 11 05 11 11 09 20 J0112+3208 06 26 20 25.2 -66.1 5.2 67.8 33 719 11 09 20 11 10 50 =0110+318 06 27 50 24.9 -66.0 5.2 67.6 90 730 11 09 21 11 10 50 J0112+3208 06 27 50 24.9 -66.0 5.2 67.6 -2 730 No stop 11 14 20 =0110+318 06 31 20 24.2 -65.6 5.3 67.3 208 757 11 10 51 11 16 20 J0344+1559 06 33 21 49.0 258.4 2.8 W 60.8 -533 757 11 16 20 11 21 20 =0341+158 06 38 22 48.0 259.2 2.9 W 61.1 0 796 11 16 21 11 21 20 J0344+1559 06 38 22 48.0 259.2 2.9 61.1 -2 796 No stop 11 22 50 =0341+158 06 39 52 47.7 259.5 2.9 61.2 88 808 11 21 21 11 22 50 0350+177 06 39 52 50.4 260.6 2.8 62.7 -13 808 No stop 11 26 20 --- 06 43 22 49.6 261.2 2.8 62.8 197 835 11 22 51 11 26 20 J0344+1559 06 43 22 46.9 260.1 3.0 61.4 -13 835 No stop 11 27 50 =0341+158 06 44 53 46.6 260.4 3.0 61.5 77 846 11 26 21 11 27 50 0350+177 06 44 53 49.3 261.5 2.8 62.9 -13 846 No stop 11 31 20 --- 06 48 23 48.6 262.0 2.9 63.1 197 873 11 27 51 11 32 00 J0344+1559 06 49 03 45.7 261.0 3.1 61.7 27 873 11 32 00 11 33 30 =0341+158 06 50 34 45.4 261.3 3.1 61.7 90 885 11 32 01 11 33 30 0350+177 06 50 34 48.1 262.4 2.9 63.2 -13 885 No stop 11 37 00 --- 06 54 04 47.3 262.9 3.0 63.3 197 912 11 33 31 11 37 00 J0344+1559 06 54 04 44.7 261.9 3.1 61.9 -13 912 No stop 11 38 30 =0341+158 06 55 34 44.3 262.1 3.2 62.0 77 924 11 37 01 Schedule for TIANMA65 (Code T6 ) Page 5 ET048B 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 ---------------------------------------------------------------------------------------- --- Thu 10 Mar 2022 Day 69 --- 11 38 30 0350+177 06 55 34 47.0 263.2 3.0 63.4 -13 924 No stop 11 42 00 --- 06 59 05 46.3 263.7 3.1 63.5 197 951 11 38 31 11 42 40 J0344+1559 06 59 45 43.5 262.7 3.2 62.1 27 951 11 42 40 11 44 10 =0341+158 07 01 15 43.1 263.0 3.3 62.2 90 962 11 42 41 11 44 10 0350+177 07 01 15 45.8 264.1 3.1 63.6 -13 962 No stop 11 47 40 --- 07 04 46 45.1 264.6 3.2 63.7 197 989 11 44 11 11 47 40 J0344+1559 07 04 46 42.4 263.5 3.3 62.3 -13 989 No stop 11 49 10 =0341+158 07 06 16 42.1 263.7 3.3 62.4 77 1001 11 47 41 11 49 10 0350+177 07 06 16 44.8 264.8 3.2 63.7 -13 1001 No stop 11 52 40 --- 07 09 47 44.0 265.3 3.3 63.8 197 1028 11 49 11 11 53 20 J0344+1559 07 10 27 41.2 264.4 3.4 62.5 27 1028 11 53 20 11 54 50 =0341+158 07 11 57 40.9 264.6 3.4 62.5 90 1040 11 53 21 11 54 50 0350+177 07 11 57 43.5 265.6 3.3 63.9 -13 1040 No stop 11 58 20 --- 07 15 28 42.8 266.1 3.4 63.9 197 1067 11 54 51 11 58 20 J0344+1559 07 15 28 40.1 265.1 3.5 62.6 -13 1067 No stop 11 59 50 =0341+158 07 16 58 39.8 265.3 3.5 62.6 77 1078 11 58 21 11 59 50 0350+177 07 16 58 42.5 266.4 3.4 64.0 -13 1078 No stop 12 03 20 --- 07 20 28 41.7 266.9 3.4 64.0 197 1105 11 59 51 12 04 00 J0344+1559 07 21 09 38.9 265.9 3.6 62.7 27 1105 12 04 00 12 05 30 =0341+158 07 22 39 38.6 266.1 3.6 62.8 90 1117 12 04 01 12 05 30 0350+177 07 22 39 41.3 267.2 3.5 64.0 -13 1117 No stop 12 09 00 --- 07 26 09 40.5 267.6 3.5 64.1 197 1144 12 05 31 12 09 00 J0344+1559 07 26 09 37.8 266.6 3.7 62.8 -13 1144 No stop 12 10 30 =0341+158 07 27 40 37.5 266.8 3.7 62.8 77 1156 12 09 01 12 10 30 0350+177 07 27 40 40.2 267.8 3.6 64.1 -13 1156 No stop 12 14 00 --- 07 31 10 39.4 268.3 3.6 64.1 197 1183 12 10 31 12 14 40 J0344+1559 07 31 50 36.6 267.4 3.8 62.9 27 1183 12 14 40 12 16 10 =0341+158 07 33 21 36.3 267.6 3.8 62.9 90 1194 12 14 41 12 16 10 0350+177 07 33 21 39.0 268.6 3.7 64.2 -13 1194 No stop 12 19 40 --- 07 36 51 38.2 269.1 3.7 64.2 197 1221 12 16 11 Schedule for TIANMA65 (Code T6 ) Page 6 ET048B 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 ---------------------------------------------------------------------------------------- --- Thu 10 Mar 2022 Day 69 --- 12 19 40 J0344+1559 07 36 51 35.5 268.1 3.9 63.0 -13 1221 No stop 12 21 10 =0341+158 07 38 21 35.2 268.3 3.9 63.0 77 1233 12 19 41 12 21 10 0350+177 07 38 21 37.9 269.3 3.7 64.2 -13 1233 No stop 12 24 40 --- 07 41 52 37.1 269.7 3.8 64.2 197 1260 12 21 11 12 25 20 J0344+1559 07 42 32 34.3 268.8 3.9 63.0 27 1260 12 25 20 12 26 50 =0341+158 07 44 02 34.0 269.0 4.0 63.0 90 1271 12 25 21 12 26 50 0350+177 07 44 02 36.7 270.0 3.8 64.2 -13 1271 No stop 12 30 20 --- 07 47 33 35.9 270.5 3.9 64.2 197 1298 12 26 51 12 30 20 J0344+1559 07 47 33 33.3 269.5 4.0 63.0 -13 1298 No stop 12 31 50 =0341+158 07 49 03 32.9 269.7 4.1 63.0 77 1310 12 30 21 12 31 50 0350+177 07 49 03 35.6 270.7 3.9 64.2 -13 1310 No stop 12 35 20 --- 07 52 34 34.9 271.1 4.0 64.2 197 1337 12 31 51 12 36 00 J0344+1559 07 53 14 32.0 270.2 4.1 63.0 27 1337 12 36 00 12 37 30 =0341+158 07 54 44 31.7 270.4 4.2 63.0 90 1349 12 36 01 12 37 30 0350+177 07 54 44 34.4 271.4 4.0 64.2 -13 1349 No stop 12 41 00 --- 07 58 15 33.6 271.8 4.1 64.1 197 1376 12 37 31 12 41 00 J0344+1559 07 58 15 31.0 270.9 4.2 63.0 -13 1376 No stop 12 42 30 =0341+158 07 59 45 30.6 271.1 4.2 63.0 77 1387 12 41 01 12 42 30 0350+177 07 59 45 33.3 272.0 4.1 64.1 -13 1387 No stop 12 46 00 --- 08 03 15 32.6 272.4 4.2 64.1 197 1414 12 42 31 12 46 40 J0344+1559 08 03 56 29.7 271.6 4.3 63.0 27 1414 12 46 40 12 48 10 =0341+158 08 05 26 29.4 271.8 4.3 63.0 90 1426 12 46 41 12 48 10 0350+177 08 05 26 32.1 272.7 4.2 64.1 -13 1426 No stop 12 51 40 --- 08 08 56 31.3 273.1 4.2 64.0 197 1453 12 48 11 12 51 40 J0344+1559 08 08 56 28.7 272.2 4.4 62.9 -13 1453 No stop 12 53 10 =0341+158 08 10 27 28.4 272.4 4.4 62.9 77 1465 12 51 41 12 53 10 0350+177 08 10 27 31.0 273.3 4.3 64.0 -13 1465 No stop 12 56 40 --- 08 13 57 30.3 273.7 4.3 63.9 197 1492 12 53 11 12 57 20 J0344+1559 08 14 37 27.5 272.9 4.5 62.9 27 1492 12 57 20 12 58 50 =0341+158 08 16 08 27.1 273.1 4.5 62.9 90 1503 12 57 21 Schedule for TIANMA65 (Code T6 ) Page 7 ET048B 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 ---------------------------------------------------------------------------------------- --- Thu 10 Mar 2022 Day 69 --- 12 58 50 J0344+1559 08 16 08 27.1 273.1 4.5 62.9 -2 1503 No stop 13 00 00 =0341+158 08 17 18 26.9 273.2 4.5 62.8 68 1512 12 58 51 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess122.C1024 --- 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: 16 Station: TIANMA65 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= 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 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 5 1 5 2 6 2 6 BBC SB= L L U U L L U U IF = A4 B3 A4 B3 A4 B3 A4 B3 The following frequency sets based on these setups were used. Frequency Set: 7 Setup file default. Used with PCAL = off LO sum= 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 758.49 758.49 758.49 758.49 822.49 822.49 822.49 822.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 7 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) * 0116+319 01 16 47.245342 * 01 19 35.000876 01 20 47.235190 0.00 J0119+3210 31 55 05.83643 * 32 10 50.06197 32 17 43.24396 0.00 From catalog imbedded in main SCHED input file. Titov,ET048B * 0350+177 03 50 00.966044 * 03 52 52.916665 03 54 07.877792 0.00 J0352+1754 17 45 43.68362 * 17 54 36.73124 17 58 29.71015 0.00 From catalog imbedded in main SCHED input file. Titov,ET048B 0110+318 01 10 03.762623 * 01 12 50.333053 01 14 02.020049 0.09 * J0112+3208 31 52 23.76439 * 32 08 17.43262 32 15 14.44864 0.12 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 152 observations. 0202+319 02 02 09.652800 * 02 05 04.925362 02 06 20.670193 0.00 * J0205+3212 31 58 10.39522 * 32 12 30.09544 32 18 48.04475 0.00 J0205+32 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 49141 observations. 0341+158 03 41 33.676026 * 03 44 23.172163 03 45 37.016823 0.05 * J0344+1559 15 50 19.30713 * 15 59 43.36917 16 03 49.23475 0.09 J0344+15 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 503 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 0116+319 sess122.C1024 1 2 3 4 5 6 7 8 9 10 11 12 + 0.933 176.426 0350+177 sess122.C1024 1 2 3 4 5 6 7 8 9 10 11 12 + 1.050 192.736 J0112+3208 sess122.C1024 1 2 3 4 5 6 7 8 9 10 11 12 + 0.567 107.988 J0205+3212 sess122.C1024 1 2 3 4 5 6 7 8 9 10 11 12 + 0.133 28.000 J0344+1559 sess122.C1024 1 2 3 4 5 6 7 8 9 10 11 12 + 0.578 102.742 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) 0116+319 45.9 0350+177 70.4 J0112+3208 44.9 J0205+3212 53.1 J0344+1559 68.0 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