COVER INFORMATION Station: KVNYS (Code Ky ) Experiment: ToO proposal on a merging SMBH candidate Exp. Code: RA006 Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Tao AN Address: Shanghai Astronomical Observatory No. 80 Nandan Road Shanghai 200030 China Phone: +86-21-64386191 EMAIL: antao@shao.ac.cn Fax: Phone during observation: Observing mode: Phase-referencing Notes: 22 GHz, dual polarisation, 2048 Mbps VLBI, 6.0 hours at GST: 0000-0600 Drafted by Zhijun Xu Schedule for KVNYS (Code Ky ) Page 2 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- Next scan frequencies: 22139.49 22139.49 22203.49 22203.49 22267.49 22267.49 22331.49 22331.49 22139.49 22139.49 22203.49 22203.49 22267.49 22267.49 22331.49 22331.49 Next BBC frequencies: 9060.51 9060.51 8996.51 8996.51 8932.51 8932.51 8868.51 8868.51 9060.51 9060.51 8996.51 8996.51 8932.51 8932.51 8868.51 8868.51 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 00 00 00 J1613+3412 18 10 41 66.3 -89.5 1.9 73.3 0 0 00 00 00 00 04 00 =1611+343 18 14 42 65.5 -88.9 2.0 73.3 240 62 00 00 01 00 05 00 J1504+1029 18 15 42 39.5 250.2 3.2 49.3 -58 62 00 05 00 00 09 00 =1502+106 18 19 43 38.8 251.0 3.2 49.6 182 124 00 05 01 00 10 00 P1427+2348 18 20 43 38.9 271.8 3.9 59.9 50 124 00 10 00 00 11 30 --- 18 22 13 38.6 272.0 3.9 59.9 90 147 00 10 01 00 11 30 J1430+2303 18 22 13 38.9 270.7 3.8 59.4 -3 147 No stop 00 12 30 --- 18 23 13 38.7 270.8 3.9 59.4 57 162 00 11 31 00 12 30 P1427+2348 18 23 13 38.4 272.1 3.9 59.9 -3 162 No stop 00 13 30 --- 18 24 14 38.2 272.3 3.9 59.9 57 178 00 12 31 00 13 30 J1430+2303 18 24 14 38.5 271.0 3.9 59.4 -3 178 No stop 00 14 30 --- 18 25 14 38.3 271.1 3.9 59.4 57 193 00 13 31 00 14 30 P1427+2348 18 25 14 38.0 272.4 4.0 59.9 -3 193 No stop 00 15 30 --- 18 26 14 37.8 272.6 4.0 59.9 57 209 00 14 31 00 15 30 J1430+2303 18 26 14 38.1 271.3 3.9 59.4 -3 209 No stop 00 16 30 --- 18 27 14 37.9 271.4 3.9 59.4 57 224 00 15 31 00 16 30 P1427+2348 18 27 14 37.6 272.7 4.0 59.8 -3 224 No stop 00 17 30 --- 18 28 14 37.4 272.9 4.0 59.8 57 240 00 16 31 00 17 30 J1430+2303 18 28 14 37.7 271.6 3.9 59.4 -3 240 No stop 00 18 30 --- 18 29 14 37.5 271.7 4.0 59.4 57 255 00 17 31 00 18 30 P1427+2348 18 29 14 37.2 273.0 4.0 59.8 -3 255 No stop 00 19 30 --- 18 30 15 37.0 273.2 4.0 59.8 57 271 00 18 31 00 19 30 J1430+2303 18 30 15 37.3 271.9 4.0 59.4 -3 271 No stop 00 20 30 --- 18 31 15 37.1 272.0 4.0 59.3 57 286 00 19 31 00 20 30 P1427+2348 18 31 15 36.8 273.3 4.1 59.8 -3 286 No stop 00 21 30 --- 18 32 15 36.6 273.4 4.1 59.8 57 301 00 20 31 Schedule for KVNYS (Code Ky ) Page 3 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- 00 21 30 J1430+2303 18 32 15 36.9 272.2 4.0 59.3 -3 301 No stop 00 22 30 --- 18 33 15 36.7 272.3 4.0 59.3 57 317 00 21 31 00 23 05 P1427+2348 18 33 50 36.3 273.7 4.1 59.8 32 317 00 23 05 00 24 00 --- 18 34 45 36.1 273.8 4.1 59.7 55 331 00 23 06 00 24 00 J1430+2303 18 34 45 36.4 272.5 4.1 59.3 -3 331 No stop 00 25 00 --- 18 35 45 36.2 272.7 4.1 59.3 57 347 00 24 01 00 25 00 P1427+2348 18 35 45 35.9 273.9 4.1 59.7 -3 347 No stop 00 26 00 --- 18 36 46 35.7 274.1 4.1 59.7 57 362 00 25 01 00 26 00 J1430+2303 18 36 46 36.0 272.8 4.1 59.3 -3 362 No stop 00 27 00 --- 18 37 46 35.8 273.0 4.1 59.3 57 377 00 26 01 00 27 00 P1427+2348 18 37 46 35.5 274.2 4.2 59.7 -3 377 No stop 00 28 00 --- 18 38 46 35.3 274.4 4.2 59.7 57 393 00 27 01 00 28 00 J1430+2303 18 38 46 35.6 273.1 4.1 59.3 -3 393 No stop 00 29 00 --- 18 39 46 35.4 273.3 4.1 59.3 57 408 00 28 01 00 29 00 P1427+2348 18 39 46 35.1 274.5 4.2 59.6 -3 408 No stop 00 30 00 --- 18 40 46 34.9 274.7 4.2 59.6 57 424 00 29 01 00 30 00 J1430+2303 18 40 46 35.2 273.4 4.2 59.2 -3 424 No stop 00 31 00 --- 18 41 46 35.0 273.6 4.2 59.2 57 439 00 30 01 00 31 00 P1427+2348 18 41 46 34.7 274.8 4.2 59.6 -3 439 No stop 00 32 00 --- 18 42 47 34.5 274.9 4.2 59.6 57 455 00 31 01 00 32 00 J1430+2303 18 42 47 34.8 273.7 4.2 59.2 -3 455 No stop 00 33 00 --- 18 43 47 34.6 273.9 4.2 59.2 57 470 00 32 01 00 33 00 P1427+2348 18 43 47 34.3 275.1 4.3 59.6 -3 470 No stop 00 34 00 --- 18 44 47 34.1 275.2 4.3 59.5 57 486 00 33 01 00 34 00 J1430+2303 18 44 47 34.4 274.0 4.2 59.2 -3 486 No stop 00 35 00 --- 18 45 47 34.2 274.1 4.2 59.2 57 501 00 34 01 00 35 35 P1427+2348 18 46 22 33.8 275.4 4.3 59.5 32 501 00 35 35 00 36 30 --- 18 47 17 33.6 275.6 4.3 59.5 55 515 00 35 36 00 36 30 J1430+2303 18 47 17 33.9 274.4 4.3 59.1 -3 515 No stop 00 37 30 --- 18 48 17 33.7 274.5 4.3 59.1 57 531 00 36 31 Schedule for KVNYS (Code Ky ) Page 4 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- 00 37 30 P1427+2348 18 48 17 33.4 275.7 4.3 59.5 -3 531 No stop 00 38 30 --- 18 49 18 33.2 275.9 4.4 59.4 57 546 00 37 31 00 38 30 J1430+2303 18 49 18 33.5 274.6 4.3 59.1 -3 546 No stop 00 39 30 --- 18 50 18 33.3 274.8 4.3 59.1 57 562 00 38 31 00 39 30 P1427+2348 18 50 18 33.0 276.0 4.4 59.4 -3 562 No stop 00 40 30 --- 18 51 18 32.8 276.1 4.4 59.4 57 577 00 39 31 00 40 30 J1430+2303 18 51 18 33.1 274.9 4.3 59.1 -3 577 No stop 00 41 30 --- 18 52 18 32.9 275.1 4.3 59.0 57 593 00 40 31 00 41 30 P1427+2348 18 52 18 32.6 276.3 4.4 59.4 -3 593 No stop 00 42 30 --- 18 53 18 32.5 276.4 4.4 59.3 57 608 00 41 31 00 42 30 J1430+2303 18 53 18 32.7 275.2 4.4 59.0 -3 608 No stop 00 43 30 --- 18 54 18 32.5 275.3 4.4 59.0 57 623 00 42 31 00 43 30 P1427+2348 18 54 18 32.3 276.5 4.4 59.3 -3 623 No stop 00 44 30 --- 18 55 19 32.1 276.7 4.5 59.3 57 639 00 43 31 00 44 30 J1430+2303 18 55 19 32.3 275.5 4.4 59.0 -3 639 No stop 00 45 30 --- 18 56 19 32.1 275.6 4.4 58.9 57 654 00 44 31 00 45 30 P1427+2348 18 56 19 31.9 276.8 4.5 59.3 -3 654 No stop 00 46 30 --- 18 57 19 31.7 277.0 4.5 59.2 57 670 00 45 31 00 46 30 J1430+2303 18 57 19 31.9 275.8 4.4 58.9 -3 670 No stop 00 47 30 --- 18 58 19 31.7 275.9 4.4 58.9 57 685 00 46 31 00 48 05 P1427+2348 18 58 54 31.4 277.2 4.5 59.2 32 685 00 48 05 00 49 00 --- 18 59 49 31.2 277.3 4.5 59.2 55 699 00 48 06 00 49 00 J1430+2303 18 59 49 31.4 276.1 4.5 58.9 -3 699 No stop 00 50 00 --- 19 00 50 31.2 276.3 4.5 58.8 57 715 00 49 01 00 50 00 P1427+2348 19 00 50 31.0 277.4 4.5 59.1 -3 715 No stop 00 51 00 --- 19 01 50 30.8 277.6 4.6 59.1 57 730 00 50 01 00 51 00 J1430+2303 19 01 50 31.0 276.4 4.5 58.8 -3 730 No stop 00 52 00 --- 19 02 50 30.8 276.5 4.5 58.8 57 746 00 51 01 00 52 00 P1427+2348 19 02 50 30.6 277.7 4.6 59.1 -3 746 No stop 00 53 00 --- 19 03 50 30.4 277.9 4.6 59.0 57 761 00 52 01 Schedule for KVNYS (Code Ky ) Page 5 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- 00 53 00 J1430+2303 19 03 50 30.6 276.7 4.5 58.8 -3 761 No stop 00 54 00 --- 19 04 50 30.4 276.8 4.6 58.7 57 777 00 53 01 00 54 00 P1427+2348 19 04 50 30.2 278.0 4.6 59.0 -3 777 No stop 00 55 00 --- 19 05 50 30.0 278.1 4.6 59.0 57 792 00 54 01 00 55 00 J1430+2303 19 05 50 30.2 277.0 4.6 58.7 -3 792 No stop 00 56 00 --- 19 06 51 30.1 277.1 4.6 58.7 57 808 00 55 01 00 56 00 P1427+2348 19 06 51 29.8 278.3 4.6 58.9 -3 808 No stop 00 57 00 --- 19 07 51 29.6 278.4 4.7 58.9 57 823 00 56 01 00 57 00 J1430+2303 19 07 51 29.9 277.2 4.6 58.6 -3 823 No stop 00 58 00 --- 19 08 51 29.7 277.4 4.6 58.6 57 839 00 57 01 00 58 00 P1427+2348 19 08 51 29.4 278.5 4.7 58.9 -3 839 No stop 00 59 00 --- 19 09 51 29.2 278.7 4.7 58.8 57 854 00 58 01 00 59 00 J1430+2303 19 09 51 29.5 277.5 4.6 58.6 -3 854 No stop 01 00 00 --- 19 10 51 29.3 277.6 4.7 58.6 57 870 00 59 01 01 00 35 P1427+2348 19 11 26 28.9 278.9 4.7 58.8 32 870 01 00 35 01 01 30 --- 19 12 21 28.7 279.0 4.7 58.8 55 884 01 00 36 01 01 30 J1430+2303 19 12 21 29.0 277.9 4.7 58.5 -3 884 No stop 01 02 30 --- 19 13 22 28.8 278.0 4.7 58.5 57 899 01 01 31 01 02 30 P1427+2348 19 13 22 28.5 279.2 4.8 58.7 -3 899 No stop 01 03 30 --- 19 14 22 28.3 279.3 4.8 58.7 57 915 01 02 31 01 03 30 J1430+2303 19 14 22 28.6 278.1 4.7 58.5 -3 915 No stop 01 04 30 --- 19 15 22 28.4 278.3 4.7 58.4 57 930 01 03 31 01 04 30 P1427+2348 19 15 22 28.1 279.4 4.8 58.6 -3 930 No stop 01 05 30 --- 19 16 22 27.9 279.6 4.8 58.6 57 946 01 04 31 01 05 30 J1430+2303 19 16 22 28.2 278.4 4.8 58.4 -3 946 No stop 01 06 30 --- 19 17 22 28.0 278.5 4.8 58.4 57 961 01 05 31 01 06 30 P1427+2348 19 17 22 27.7 279.7 4.8 58.6 -3 961 No stop 01 07 30 --- 19 18 22 27.5 279.8 4.8 58.5 57 976 01 06 31 01 07 30 J1430+2303 19 18 22 27.8 278.7 4.8 58.3 -3 976 No stop 01 08 30 --- 19 19 23 27.6 278.8 4.8 58.3 57 992 01 07 31 Schedule for KVNYS (Code Ky ) Page 6 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- 01 08 30 P1427+2348 19 19 23 27.3 280.0 4.9 58.5 -3 992 No stop 01 09 30 --- 19 20 23 27.1 280.1 4.9 58.5 57 1007 01 08 31 01 09 30 J1430+2303 19 20 23 27.4 279.0 4.8 58.2 -3 1007 No stop 01 10 30 --- 19 21 23 27.2 279.1 4.8 58.2 57 1023 01 09 31 01 10 30 P1427+2348 19 21 23 26.9 280.2 4.9 58.4 -3 1023 No stop 01 11 30 --- 19 22 23 26.8 280.4 4.9 58.4 57 1038 01 10 31 01 11 30 J1430+2303 19 22 23 27.0 279.2 4.9 58.2 -3 1038 No stop 01 12 30 --- 19 23 23 26.8 279.4 4.9 58.1 57 1054 01 11 31 01 13 05 P1427+2348 19 23 58 26.4 280.6 4.9 58.3 32 1054 01 13 05 01 14 00 --- 19 24 53 26.3 280.7 4.9 58.3 55 1068 01 13 06 01 14 00 J1430+2303 19 24 53 26.5 279.6 4.9 58.1 -3 1068 No stop 01 15 00 --- 19 25 54 26.3 279.7 4.9 58.1 57 1083 01 14 01 01 15 00 P1427+2348 19 25 54 26.1 280.8 5.0 58.2 -3 1083 No stop 01 16 00 --- 19 26 54 25.9 281.0 5.0 58.2 57 1099 01 15 01 01 16 00 J1430+2303 19 26 54 26.1 279.8 4.9 58.0 -3 1099 No stop 01 17 00 --- 19 27 54 25.9 280.0 4.9 58.0 57 1114 01 16 01 01 17 00 P1427+2348 19 27 54 25.7 281.1 5.0 58.1 -3 1114 No stop 01 18 00 --- 19 28 54 25.5 281.2 5.0 58.1 57 1130 01 17 01 01 18 00 J1430+2303 19 28 54 25.7 280.1 5.0 57.9 -3 1130 No stop 01 19 00 --- 19 29 54 25.5 280.2 5.0 57.9 57 1145 01 18 01 01 19 00 P1427+2348 19 29 54 25.3 281.4 5.0 58.1 -3 1145 No stop 01 20 00 --- 19 30 54 25.1 281.5 5.0 58.0 57 1161 01 19 01 01 20 00 J1430+2303 19 30 54 25.3 280.4 5.0 57.9 -3 1161 No stop 01 21 00 --- 19 31 55 25.1 280.5 5.0 57.8 57 1176 01 20 01 01 21 00 P1427+2348 19 31 55 24.9 281.6 5.1 58.0 -3 1176 No stop 01 22 00 --- 19 32 55 24.7 281.8 5.1 57.9 57 1192 01 21 01 01 22 00 J1430+2303 19 32 55 24.9 280.7 5.0 57.8 -3 1192 No stop 01 23 00 --- 19 33 55 24.8 280.8 5.0 57.7 57 1207 01 22 01 01 23 00 P1427+2348 19 33 55 24.5 281.9 5.1 57.9 -3 1207 No stop 01 24 00 --- 19 34 55 24.3 282.0 5.1 57.8 57 1222 01 23 01 Schedule for KVNYS (Code Ky ) Page 7 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- 01 24 00 J1430+2303 19 34 55 24.6 280.9 5.1 57.7 -3 1222 No stop 01 25 00 --- 19 35 55 24.4 281.1 5.1 57.7 57 1238 01 24 01 01 25 35 P1427+2348 19 36 30 24.0 282.3 5.1 57.8 32 1238 01 25 35 01 26 30 --- 19 37 26 23.8 282.4 5.2 57.7 55 1252 01 25 36 01 26 30 J1430+2303 19 37 26 24.1 281.3 5.1 57.6 -3 1252 No stop 01 27 30 --- 19 38 26 23.9 281.4 5.1 57.5 57 1268 01 26 31 01 27 30 P1427+2348 19 38 26 23.6 282.5 5.2 57.7 -3 1268 No stop 01 28 30 --- 19 39 26 23.4 282.7 5.2 57.6 57 1283 01 27 31 01 28 30 J1430+2303 19 39 26 23.7 281.5 5.1 57.5 -3 1283 No stop 01 29 30 --- 19 40 26 23.5 281.7 5.2 57.5 57 1298 01 28 31 01 29 30 P1427+2348 19 40 26 23.2 282.8 5.2 57.6 -3 1298 No stop 01 30 30 --- 19 41 26 23.1 282.9 5.2 57.5 57 1314 01 29 31 01 30 30 J1430+2303 19 41 26 23.3 281.8 5.2 57.4 -3 1314 No stop 01 31 30 --- 19 42 26 23.1 281.9 5.2 57.4 57 1329 01 30 31 01 31 30 P1427+2348 19 42 26 22.9 283.1 5.2 57.5 -3 1329 No stop 01 32 30 --- 19 43 27 22.7 283.2 5.3 57.4 57 1345 01 31 31 01 32 30 J1430+2303 19 43 27 22.9 282.1 5.2 57.3 -3 1345 No stop 01 33 30 --- 19 44 27 22.7 282.2 5.2 57.3 57 1360 01 32 31 01 33 30 P1427+2348 19 44 27 22.5 283.3 5.3 57.4 -3 1360 No stop 01 34 30 --- 19 45 27 22.3 283.5 5.3 57.3 57 1376 01 33 31 01 34 30 J1430+2303 19 45 27 22.5 282.3 5.2 57.2 -3 1376 No stop 01 35 30 --- 19 46 27 22.3 282.5 5.3 57.2 57 1391 01 34 31 01 35 30 P1427+2348 19 46 27 22.1 283.6 5.3 57.3 -3 1391 No stop 01 36 30 --- 19 47 27 21.9 283.7 5.3 57.2 57 1407 01 35 31 01 36 30 J1430+2303 19 47 27 22.1 282.6 5.3 57.1 -3 1407 No stop 01 37 30 --- 19 48 27 21.9 282.8 5.3 57.1 57 1422 01 36 31 01 38 05 P1427+2348 19 49 02 21.6 283.9 5.3 57.2 32 1422 01 38 05 01 39 00 --- 19 49 58 21.4 284.1 5.4 57.1 55 1436 01 38 06 01 39 00 J1430+2303 19 49 58 21.6 283.0 5.3 57.0 -3 1436 No stop 01 40 00 --- 19 50 58 21.4 283.1 5.3 57.0 57 1452 01 39 01 Schedule for KVNYS (Code Ky ) Page 8 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- 01 40 00 P1427+2348 19 50 58 21.2 284.2 5.4 57.1 -3 1452 No stop 01 41 00 --- 19 51 58 21.0 284.3 5.4 57.0 57 1467 01 40 01 01 41 00 J1430+2303 19 51 58 21.3 283.2 5.3 56.9 -3 1467 No stop 01 42 00 --- 19 52 58 21.1 283.4 5.4 56.9 57 1483 01 41 01 01 42 00 P1427+2348 19 52 58 20.8 284.5 5.4 57.0 -3 1483 No stop 01 43 00 --- 19 53 58 20.6 284.6 5.4 56.9 57 1498 01 42 01 01 43 00 J1430+2303 19 53 58 20.9 283.5 5.4 56.8 -3 1498 No stop 01 44 00 --- 19 54 58 20.7 283.6 5.4 56.8 57 1514 01 43 01 01 44 00 P1427+2348 19 54 58 20.5 284.7 5.4 56.8 -3 1514 No stop 01 45 00 --- 19 55 59 20.3 284.9 5.5 56.8 57 1529 01 44 01 01 45 00 J1430+2303 19 55 59 20.5 283.8 5.4 56.7 -3 1529 No stop 01 46 00 --- 19 56 59 20.3 283.9 5.4 56.7 57 1545 01 45 01 01 46 00 P1427+2348 19 56 59 20.1 285.0 5.5 56.7 -3 1545 No stop 01 47 00 --- 19 57 59 19.9 285.1 5.5 56.7 57 1560 01 46 01 01 47 00 J1430+2303 19 57 59 20.1 284.0 5.4 56.6 -3 1560 No stop 01 48 00 --- 19 58 59 19.9 284.2 5.5 56.6 57 1575 01 47 01 01 48 00 P1427+2348 19 58 59 19.7 285.3 5.5 56.6 -3 1575 No stop 01 49 00 --- 19 59 59 19.5 285.4 5.5 56.6 57 1591 01 48 01 01 49 00 J1430+2303 19 59 59 19.7 284.3 5.5 56.5 -3 1591 No stop 01 50 00 --- 20 00 59 19.5 284.4 5.5 56.5 57 1606 01 49 01 01 50 35 P1427+2348 20 01 34 19.2 285.6 5.6 56.5 32 1606 01 50 35 01 51 30 --- 20 02 30 19.0 285.7 5.6 56.4 55 1621 01 50 36 01 51 30 J1430+2303 20 02 30 19.2 284.6 5.5 56.4 -3 1621 No stop 01 52 30 --- 20 03 30 19.0 284.8 5.5 56.3 57 1636 01 51 31 01 52 30 P1427+2348 20 03 30 18.8 285.9 5.6 56.4 -3 1636 No stop 01 53 30 --- 20 04 30 18.6 286.0 5.6 56.3 57 1651 01 52 31 01 53 30 J1430+2303 20 04 30 18.8 284.9 5.6 56.3 -3 1651 No stop 01 54 30 --- 20 05 30 18.7 285.1 5.6 56.2 57 1667 01 53 31 01 54 30 P1427+2348 20 05 30 18.4 286.1 5.6 56.3 -3 1667 No stop 01 55 30 --- 20 06 30 18.2 286.3 5.6 56.2 57 1682 01 54 31 Schedule for KVNYS (Code Ky ) Page 9 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- 01 55 30 J1430+2303 20 06 30 18.5 285.2 5.6 56.2 -3 1682 No stop 01 56 30 --- 20 07 30 18.3 285.3 5.6 56.1 57 1698 01 55 31 01 56 30 P1427+2348 20 07 30 18.1 286.4 5.7 56.1 -3 1698 No stop 01 57 30 --- 20 08 31 17.9 286.5 5.7 56.1 57 1713 01 56 31 01 57 30 J1430+2303 20 08 31 18.1 285.5 5.6 56.1 -3 1713 No stop 01 58 30 --- 20 09 31 17.9 285.6 5.6 56.0 57 1729 01 57 31 01 58 30 P1427+2348 20 09 31 17.7 286.7 5.7 56.0 -3 1729 No stop 01 59 30 --- 20 10 31 17.5 286.8 5.7 56.0 57 1744 01 58 31 01 59 30 J1430+2303 20 10 31 17.7 285.7 5.7 56.0 -3 1744 No stop 02 00 30 --- 20 11 31 17.5 285.9 5.7 55.9 57 1760 01 59 31 02 00 30 P1427+2348 20 11 31 17.3 286.9 5.7 55.9 -3 1760 No stop 02 01 30 --- 20 12 31 17.1 287.1 5.7 55.8 57 1775 02 00 31 02 01 30 J1430+2303 20 12 31 17.3 286.0 5.7 55.8 -3 1775 No stop 02 02 30 --- 20 13 31 17.1 286.1 5.7 55.8 57 1791 02 01 31 02 02 30 P1427+2348 20 13 31 16.9 287.2 5.8 55.8 -3 1791 No stop 02 03 30 --- 20 14 32 16.7 287.3 5.8 55.7 57 1806 02 02 31 02 03 30 J1430+2303 20 14 32 16.9 286.3 5.7 55.7 -3 1806 No stop 02 04 30 --- 20 15 32 16.7 286.4 5.7 55.7 57 1822 02 03 31 02 05 05 P1427+2348 20 16 07 16.4 287.6 5.8 55.6 32 1822 02 05 05 02 06 00 --- 20 17 02 16.3 287.7 5.8 55.6 55 1836 02 05 06 02 06 00 J1430+2303 20 17 02 16.5 286.6 5.8 55.6 -3 1836 No stop 02 07 00 --- 20 18 02 16.3 286.7 5.8 55.5 57 1851 02 06 01 02 07 00 P1427+2348 20 18 02 16.1 287.8 5.8 55.5 -3 1851 No stop 02 08 00 --- 20 19 02 15.9 288.0 5.8 55.4 57 1867 02 07 01 02 08 00 J1430+2303 20 19 02 16.1 286.9 5.8 55.5 -3 1867 No stop 02 09 00 --- 20 20 03 15.9 287.0 5.8 55.4 57 1882 02 08 01 02 09 00 P1427+2348 20 20 03 15.7 288.1 5.9 55.4 -3 1882 No stop 02 10 00 --- 20 21 03 15.5 288.2 5.9 55.3 57 1898 02 09 01 02 10 00 J1430+2303 20 21 03 15.7 287.2 5.8 55.3 -3 1898 No stop 02 11 00 --- 20 22 03 15.5 287.3 5.8 55.3 57 1913 02 10 01 Schedule for KVNYS (Code Ky ) Page 10 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- 02 11 00 P1427+2348 20 22 03 15.3 288.4 5.9 55.2 -3 1913 No stop 02 12 00 --- 20 23 03 15.1 288.5 5.9 55.2 57 1928 02 11 01 02 12 00 J1430+2303 20 23 03 15.3 287.4 5.9 55.2 -3 1928 No stop 02 13 00 --- 20 24 03 15.1 287.6 5.9 55.2 57 1944 02 12 01 02 13 00 P1427+2348 20 24 03 14.9 288.6 5.9 55.1 -3 1944 No stop 02 14 00 --- 20 25 03 14.7 288.8 5.9 55.0 57 1959 02 13 01 02 14 00 J1430+2303 20 25 03 14.9 287.7 5.9 55.1 -3 1959 No stop 02 15 00 --- 20 26 03 14.7 287.8 5.9 55.0 57 1975 02 14 01 02 15 00 P1427+2348 20 26 03 14.6 288.9 6.0 55.0 -3 1975 No stop 02 16 00 --- 20 27 04 14.4 289.0 6.0 54.9 57 1990 02 15 01 02 16 00 J1430+2303 20 27 04 14.6 288.0 5.9 55.0 -3 1990 No stop 02 17 00 --- 20 28 04 14.4 288.1 5.9 54.9 57 2006 02 16 01 02 17 35 P1427+2348 20 28 39 14.1 289.3 6.0 54.8 32 2006 02 17 35 02 18 30 --- 20 29 34 13.9 289.4 6.0 54.7 55 2020 02 17 36 02 18 30 J1430+2303 20 29 34 14.1 288.3 6.0 54.8 -3 2020 No stop 02 19 30 --- 20 30 34 13.9 288.5 6.0 54.7 57 2035 02 18 31 02 19 30 P1427+2348 20 30 34 13.7 289.5 6.0 54.7 -3 2035 No stop 02 20 30 --- 20 31 34 13.5 289.7 6.1 54.6 57 2051 02 19 31 02 20 30 J1430+2303 20 31 34 13.7 288.6 6.0 54.7 -3 2051 No stop 02 21 30 --- 20 32 35 13.5 288.7 6.0 54.6 57 2066 02 20 31 02 21 30 P1427+2348 20 32 35 13.3 289.8 6.1 54.5 -3 2066 No stop 02 22 30 --- 20 33 35 13.1 289.9 6.1 54.5 57 2082 02 21 31 02 22 30 J1430+2303 20 33 35 13.3 288.9 6.0 54.5 -3 2082 No stop 02 23 30 --- 20 34 35 13.1 289.0 6.1 54.5 57 2097 02 22 31 02 23 30 P1427+2348 20 34 35 13.0 290.1 6.1 54.4 -3 2097 No stop 02 24 30 --- 20 35 35 12.8 290.2 6.1 54.3 57 2113 02 23 31 02 24 30 J1430+2303 20 35 35 13.0 289.1 6.1 54.4 -3 2113 No stop 02 25 30 --- 20 36 35 12.8 289.3 6.1 54.3 57 2128 02 24 31 02 25 30 P1427+2348 20 36 35 12.6 290.3 6.1 54.3 -3 2128 No stop 02 26 30 --- 20 37 35 12.4 290.5 6.2 54.2 57 2144 02 25 31 Schedule for KVNYS (Code Ky ) Page 11 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- 02 26 30 J1430+2303 20 37 35 12.6 289.4 6.1 54.3 -3 2144 No stop 02 27 30 --- 20 38 36 12.4 289.6 6.1 54.2 57 2159 02 26 31 02 27 30 P1427+2348 20 38 36 12.2 290.6 6.2 54.1 -3 2159 No stop 02 28 30 --- 20 39 36 12.0 290.8 6.2 54.0 57 2174 02 27 31 02 28 30 J1430+2303 20 39 36 12.2 289.7 6.1 54.1 -3 2174 No stop 02 29 30 --- 20 40 36 12.0 289.8 6.2 54.1 57 2190 02 28 31 02 30 05 P1427+2348 20 41 11 11.7 291.0 6.2 53.9 32 2190 02 30 05 02 31 00 --- 20 42 06 11.6 291.1 6.2 53.9 55 2204 02 30 06 02 31 00 J1430+2303 20 42 06 11.7 290.0 6.2 54.0 -3 2204 No stop 02 32 00 --- 20 43 06 11.6 290.2 6.2 53.9 57 2220 02 31 01 02 32 00 P1427+2348 20 43 06 11.4 291.2 6.3 53.8 -3 2220 No stop 02 33 00 --- 20 44 06 11.2 291.4 6.3 53.7 57 2235 02 32 01 02 33 00 J1430+2303 20 44 06 11.4 290.3 6.2 53.8 -3 2235 No stop 02 34 00 --- 20 45 07 11.2 290.5 6.2 53.8 57 2250 02 33 01 02 34 00 P1427+2348 20 45 07 11.0 291.5 6.3 53.6 -3 2250 No stop 02 35 00 --- 20 46 07 10.8 291.7 6.3 53.6 57 2266 02 34 01 02 35 00 J1430+2303 20 46 07 11.0 290.6 6.2 53.7 -3 2266 No stop 02 36 00 --- 20 47 07 10.8 290.7 6.3 53.6 57 2281 02 35 01 02 36 00 P1427+2348 20 47 07 10.6 291.8 6.3 53.5 -3 2281 No stop 02 37 00 --- 20 48 07 10.5 291.9 6.3 53.4 57 2297 02 36 01 02 37 00 J1430+2303 20 48 07 10.6 290.9 6.3 53.5 -3 2297 No stop 02 38 00 --- 20 49 07 10.4 291.0 6.3 53.5 57 2312 02 37 01 02 38 00 P1427+2348 20 49 07 10.3 292.1 6.4 53.3 -3 2312 No stop 02 39 00 --- 20 50 07 10.1 292.2 6.4 53.3 57 2328 02 38 01 02 39 00 J1430+2303 20 50 07 10.3 291.2 6.3 53.4 -3 2328 No stop 02 40 00 --- 20 51 08 10.1 291.3 6.3 53.3 57 2343 02 39 01 02 40 00 P1427+2348 20 51 08 9.9 292.4 6.4 53.2 -3 2343 No stop 02 41 00 --- 20 52 08 9.7 292.5 6.4 53.1 57 2359 02 40 01 02 41 00 J1430+2303 20 52 08 9.9 291.4 6.3 53.3 -3 2359 No stop 02 42 00 --- 20 53 08 9.7 291.6 6.4 53.2 57 2374 02 41 01 Schedule for KVNYS (Code Ky ) Page 12 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- 02 42 35 P1427+2348 20 53 43 9.4 292.7 6.4 53.0 32 2374 02 42 35 02 43 30 --- 20 54 38 9.3 292.8 6.4 52.9 55 2388 02 42 36 02 43 30 J1430+2303 20 54 38 9.4 291.8 6.4 53.1 -3 2388 No stop 02 44 30 --- 20 55 38 9.2 291.9 6.4 53.0 57 2404 02 43 31 02 44 30 P1427+2348 20 55 38 9.1 293.0 6.5 52.8 -3 2404 No stop 02 45 30 --- 20 56 38 8.9 293.1 6.5 52.8 57 2419 02 44 31 02 45 30 J1430+2303 20 56 38 9.1 292.1 6.4 52.9 -3 2419 No stop 02 46 30 --- 20 57 39 8.9 292.2 6.4 52.8 57 2435 02 45 31 02 46 30 P1427+2348 20 57 39 8.7 293.3 6.5 52.7 -3 2435 No stop 02 47 30 --- 20 58 39 8.5 293.4 6.5 52.6 57 2450 02 46 31 02 47 30 J1430+2303 20 58 39 8.7 292.4 6.5 52.8 -3 2450 No stop 02 48 30 --- 20 59 39 8.5 292.5 6.5 52.7 57 2466 02 47 31 02 48 30 P1427+2348 20 59 39 8.4 293.5 6.5 52.5 -3 2466 No stop 02 49 30 --- 21 00 39 8.2 293.7 6.5 52.4 57 2481 02 48 31 02 49 30 J1430+2303 21 00 39 8.3 292.6 6.5 52.6 -3 2481 No stop 02 50 30 --- 21 01 39 8.1 292.8 6.5 52.5 57 2497 02 49 31 02 50 30 P1427+2348 21 01 39 8.0 293.8 6.6 52.4 -3 2497 No stop 02 51 30 --- 21 02 39 7.8 294.0 6.6 52.3 57 2512 02 50 31 02 51 30 J1430+2303 21 02 39 7.9 292.9 6.5 52.5 -3 2512 No stop 02 52 30 --- 21 03 40 7.8 293.1 6.5 52.4 57 2527 02 51 31 02 52 30 P1427+2348 21 03 40 7.6 294.1 6.6 52.2 -3 2527 No stop 02 53 30 --- 21 04 40 7.4 294.3 6.6 52.1 57 2543 02 52 31 02 53 30 J1430+2303 21 04 40 7.6 293.2 6.6 52.3 -3 2543 No stop 02 54 30 --- 21 05 40 7.4 293.3 6.6 52.2 57 2558 02 53 31 02 55 05 P1427+2348 21 06 15 7.2 294.5 6.6 52.0 32 2558 02 55 05 02 56 00 --- 21 07 10 7.0 294.6 6.7 51.9 55 2573 02 55 06 02 56 00 J1430+2303 21 07 10 7.1 293.6 6.6 52.1 -3 2573 No stop 02 57 00 --- 21 08 10 6.9 293.7 6.6 52.0 57 2588 02 56 01 02 57 00 P1427+2348 21 08 10 6.8 294.8 6.7 51.8 -3 2588 No stop 02 58 00 --- 21 09 11 6.6 294.9 6.7 51.7 57 2603 02 57 01 Schedule for KVNYS (Code Ky ) Page 13 ToO proposal on a merging SMBH 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 ---------------------------------------------------------------------------------------- --- Thu 16 Feb 2023 Day 47 --- 02 58 00 J1430+2303 21 09 11 6.8 293.8 6.6 51.9 -3 2603 No stop 02 59 00 --- 21 10 11 6.6 294.0 6.6 51.9 57 2619 02 58 01 02 59 00 P1427+2348 21 10 11 6.4 295.0 6.7 51.7 -3 2619 No stop 03 00 00 --- 21 11 11 6.3 295.2 6.7 51.6 57 2634 02 59 01 03 00 00 J1430+2303 21 11 11 6.4 294.1 6.7 51.8 -3 2634 No stop 03 01 00 --- 21 12 11 6.2 294.3 6.7 51.7 57 2650 03 00 01 03 01 00 P1427+2348 21 12 11 6.1 295.3 6.7 51.5 -3 2650 No stop 03 02 00 --- 21 13 11 5.9 295.5 6.8 51.4 57 2665 03 01 01 03 02 00 J1430+2303 21 13 11 6.0 294.4 6.7 51.6 -3 2665 No stop 03 03 00 --- 21 14 11 5.9 294.6 6.7 51.5 57 2681 03 02 01 03 03 00 P1427+2348 21 14 11 5.7 295.6 6.8 51.3 -3 2681 No stop 03 04 00 --- 21 15 12 5.6 295.8 6.8 51.2 57 2696 03 03 01 03 04 00 J1430+2303 21 15 12 5.7 294.7 6.7 51.4 -3 2696 No stop 03 05 00 --- 21 16 12 5.5 294.9 6.7 51.4 57 2712 03 04 01 03 05 00 P1427+2348 21 16 12 5.4 295.9 6.8 51.1 -3 2712 No stop 03 06 00 --- 21 17 12 5.2 296.0 6.8 51.1 57 2727 03 05 01 03 06 00 J1430+2303 21 17 12 5.3 295.0 6.8 51.3 -3 2727 No stop 03 07 00 --- 21 18 12 5.1 295.1 6.8 51.2 57 2743 03 06 01 03 48 30 3C345 21 59 49 30.4 299.0 5.3 64.4 2476 2743 03 48 30 03 53 00 --- 22 04 20 29.6 299.4 5.3 63.9 270 2812 03 48 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess322.K2048 --- 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: 11 Station: KVNYS Total bit rate: 2048 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 31200.00 Net SB= L U L U L U L U L U L U L U L U IF SB = L L L L L L L L L L L L L L L L Pol. = LCP LCP LCP LCP LCP LCP LCP LCP RCP RCP RCP RCP RCP RCP RCP RCP BBC = 1 1 1 1 1 1 1 1 3 3 3 3 3 3 3 3 BBC SB= U L U L U L U L U L U L U L U L IF = A A A A A A A A B B B B B B B B The following frequency sets based on these setups were used. Frequency Set: 9 Setup file default. Used with PCAL = off LO sum= 22139.49 22139.49 22203.49 22203.49 22267.49 22267.49 22331.49 22331.49 22139.49 22139.49 22203.49 22203.49 22267.49 22267.49 22331.49 22331.49 BBC fr= 9060.51 9060.51 8996.51 8996.51 8932.51 8932.51 8868.51 8868.51 9060.51 9060.51 8996.51 8996.51 8932.51 8932.51 8868.51 8868.51 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 Matching frequency sets: 9 10 11 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) * J1430+2303 14 27 59.587496 * 14 30 16.040930 14 31 19.189630 0.00 23 17 01.74545 * 23 03 44.53900 22 57 22.53724 0.00 From catalog imbedded in main SCHED input file. from FIRST survey, ~ 1 mJy * P1427+2348 14 24 44.222647 * 14 27 00.391800 14 28 03.436436 0.00 24 01 25.78988 * 23 48 00.03800 23 41 33.99986 0.00 From catalog imbedded in main SCHED input file. 1.05 deg, S-K >100 mJy 1502+106 15 02 00.157713 * 15 04 24.979782 15 05 31.684935 0.01 * J1504+1029 10 41 17.73998 * 10 29 39.19856 10 24 05.59791 0.01 J1504+10 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 15902 observations. 1611+343 16 11 47.914252 * 16 13 41.064243 16 14 32.861196 0.13 * J1613+3412 34 20 19.83388 * 34 12 47.90890 34 08 59.82620 0.16 J1613+34 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 162031 observations. * 3C345 16 41 17.606229 * 16 42 58.809967 16 43 44.883354 0.79 J1642+3948 39 54 10.81492 * 39 48 36.99399 39 45 41.86357 0.59 1641+399 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1642+39 GSFC 2016a X/S astro solution, 53724 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 J1430+2303 sess322.K2048 1 2 3 4 5 6 7 8 9 2.667 96.405 P1427+2348 sess322.K2048 1 2 3 4 5 6 7 8 9 2.682 101.935 J1504+1029 sess322.K2048 1 2 3 4 5 6 7 8 9 0.067 3.712 J1613+3412 sess322.K2048 1 2 3 4 5 6 7 8 9 0.150 6.083 3C345 sess322.K2048 1 2 3 4 5 6 7 8 9 0.075 3.984 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) J1430+2303 114.5 P1427+2348 115.3 J1504+1029 104.8 J1613+3412 93.5 3C345 89.3 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