COVER INFORMATION Station: TIANMA65 (Code T6 ) Experiment: Observations of radio-quiet quasars: SDSSJ1258+1657 Exp. Code: EJ027C Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Neal Jackson Address: University of Manchester Turing Building Manchester M13 9PL U.K. Phone: +44 161 275 4080 EMAIL: neal.jackson@manchester.ac.uk Fax: +44 275 4297 Phone during observation: +44 161 275 4080 Observing mode: MKIV Notes: Schedule for TIANMA65 (Code T6 ) Page 2 Observations of radio-quiet quasars: SDSSJ1258+1657 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 9 Mar 2023 Day 68 --- ---------- Fringe Finder ---------- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 643.51 643.51 643.51 643.51 579.51 579.51 579.51 579.51 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 20 30 00 4C39.25 15 43 38 16.3 -54.0 6.3 62.9 0 0 20 30 00 20 35 00 --- 15 48 39 15.4 -53.5 6.3 62.2 300 39 20 30 01 20 38 00 J1255+1817 15 51 39 48.5 262.4 2.9 W 63.3 -456 39 20 38 00 20 43 00 --- 15 56 40 47.4 263.2 3.0 W 63.5 0 77 20 38 01 20 43 00 SDSSJ1258+16 15 56 40 47.4 261.0 3.0 62.1 -6 77 No stop 20 48 00 --- 16 01 41 46.3 261.8 3.0 62.3 294 116 20 43 01 20 48 40 J1255+1817 16 02 21 46.2 264.1 3.1 63.7 34 116 20 48 40 20 50 10 --- 16 03 51 45.9 264.3 3.1 63.7 90 128 20 48 41 20 50 10 SDSSJ1258+16 16 03 51 45.9 262.2 3.1 62.4 -6 128 No stop 20 55 10 --- 16 08 52 44.8 263.0 3.2 62.6 294 166 20 50 11 20 55 10 J1255+1817 16 08 52 44.8 265.1 3.2 63.9 -6 166 No stop 20 56 40 --- 16 10 22 44.5 265.3 3.2 63.9 84 178 20 55 11 20 56 40 SDSSJ1258+16 16 10 22 44.5 263.2 3.2 62.7 -6 178 No stop 21 01 40 --- 16 15 23 43.4 263.9 3.3 62.8 294 216 20 56 41 21 02 20 J1255+1817 16 16 03 43.3 266.1 3.3 64.1 34 216 21 02 20 21 03 50 --- 16 17 33 43.0 266.3 3.3 64.1 90 228 21 02 21 21 03 50 SDSSJ1258+16 16 17 33 43.0 264.3 3.3 62.9 -6 228 No stop 21 08 50 --- 16 22 34 41.9 265.0 3.4 63.0 294 267 21 03 51 21 08 50 J1255+1817 16 22 34 41.9 267.0 3.4 64.2 -6 267 No stop 21 10 20 --- 16 24 04 41.6 267.2 3.5 64.2 84 278 21 08 51 21 10 20 SDSSJ1258+16 16 24 04 41.6 265.2 3.4 63.1 -6 278 No stop 21 15 20 --- 16 29 05 40.5 266.0 3.5 63.2 294 317 21 10 21 21 16 00 J1255+1817 16 29 45 40.4 268.0 3.6 64.3 34 317 21 16 00 21 17 30 --- 16 31 16 40.0 268.2 3.6 64.3 90 328 21 16 01 21 17 30 SDSSJ1258+16 16 31 16 40.0 266.3 3.5 63.2 -6 328 No stop 21 22 30 --- 16 36 16 39.0 267.0 3.6 63.3 294 367 21 17 31 Schedule for TIANMA65 (Code T6 ) Page 3 Observations of radio-quiet quasars: SDSSJ1258+1657 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 9 Mar 2023 Day 68 --- 21 22 30 J1255+1817 16 36 16 39.0 268.9 3.7 64.3 -6 367 No stop 21 24 00 --- 16 37 47 38.6 269.1 3.7 64.3 84 379 21 22 31 21 24 00 SDSSJ1258+16 16 37 47 38.7 267.2 3.6 63.3 -6 379 No stop 21 29 00 --- 16 42 48 37.6 267.8 3.7 63.4 294 417 21 24 01 21 29 40 J1255+1817 16 43 28 37.4 269.8 3.8 64.3 34 417 21 29 40 21 31 10 --- 16 44 58 37.1 270.0 3.8 64.3 90 429 21 29 41 21 31 10 SDSSJ1258+16 16 44 58 37.1 268.1 3.8 63.4 -6 429 No stop 21 36 10 --- 16 49 59 36.0 268.8 3.8 63.4 294 468 21 31 11 21 36 10 J1255+1817 16 49 59 36.0 270.7 3.9 64.3 -6 468 No stop 21 37 40 --- 16 51 29 35.7 270.9 3.9 64.3 84 479 21 36 11 21 37 40 SDSSJ1258+16 16 51 29 35.7 269.0 3.9 63.4 -6 479 No stop 21 42 40 --- 16 56 30 34.6 269.7 4.0 63.5 294 518 21 37 41 21 43 20 J1255+1817 16 57 10 34.5 271.6 4.0 64.3 34 518 21 43 20 21 44 50 --- 16 58 40 34.2 271.8 4.0 64.3 90 529 21 43 21 21 44 50 SDSSJ1258+16 16 58 40 34.2 269.9 4.0 63.5 -6 529 No stop 21 49 50 --- 17 03 41 33.1 270.6 4.1 63.5 294 568 21 44 51 21 49 50 J1255+1817 17 03 41 33.1 272.4 4.1 64.2 -6 568 No stop 21 51 20 --- 17 05 11 32.8 272.6 4.1 64.2 84 580 21 49 51 21 51 20 SDSSJ1258+16 17 05 11 32.8 270.8 4.1 63.5 -6 580 No stop 21 56 20 --- 17 10 12 31.7 271.4 4.2 63.4 294 618 21 51 21 21 57 00 J1255+1817 17 10 52 31.6 273.3 4.2 64.1 34 618 21 57 00 21 58 30 --- 17 12 22 31.2 273.4 4.3 64.1 90 630 21 57 01 21 58 30 SDSSJ1258+16 17 12 22 31.3 271.7 4.2 63.4 -5 630 No stop 22 03 30 --- 17 17 23 30.2 272.3 4.3 63.4 295 669 21 58 31 22 03 30 J1255+1817 17 17 23 30.2 274.0 4.3 64.0 -5 669 No stop 22 05 00 --- 17 18 53 29.9 274.2 4.4 64.0 85 680 22 03 31 22 05 00 SDSSJ1258+16 17 18 53 29.9 272.5 4.3 63.4 -5 680 No stop 22 10 00 --- 17 23 54 28.8 273.1 4.4 63.3 295 719 22 05 01 22 10 40 J1255+1817 17 24 34 28.6 274.9 4.5 63.9 35 719 22 10 40 22 12 10 --- 17 26 05 28.3 275.1 4.5 63.9 90 730 22 10 41 Schedule for TIANMA65 (Code T6 ) Page 4 Observations of radio-quiet quasars: SDSSJ1258+1657 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 9 Mar 2023 Day 68 --- 22 12 10 SDSSJ1258+16 17 26 05 28.3 273.4 4.4 63.3 -5 730 No stop 22 17 10 --- 17 31 05 27.2 274.0 4.5 63.2 295 769 22 12 11 22 17 10 J1255+1817 17 31 05 27.3 275.7 4.6 63.7 -5 769 No stop 22 18 40 --- 17 32 36 26.9 275.9 4.6 63.7 85 781 22 17 11 22 18 40 SDSSJ1258+16 17 32 36 26.9 274.2 4.6 63.2 -5 781 No stop 22 23 40 --- 17 37 37 25.9 274.8 4.6 63.1 295 819 22 18 41 22 24 20 J1255+1817 17 38 17 25.7 276.5 4.7 63.6 35 819 22 24 20 22 25 50 --- 17 39 47 25.4 276.7 4.7 63.5 90 831 22 24 21 22 25 50 SDSSJ1258+16 17 39 47 25.4 275.0 4.7 63.0 -5 831 No stop 22 30 50 --- 17 44 48 24.3 275.6 4.8 62.9 295 870 22 25 51 22 30 50 J1255+1817 17 44 48 24.3 277.3 4.8 63.4 -5 870 No stop 22 32 20 --- 17 46 18 24.0 277.5 4.8 63.3 85 881 22 30 51 22 32 20 SDSSJ1258+16 17 46 18 24.0 275.8 4.8 62.9 -5 881 No stop 22 37 20 --- 17 51 19 22.9 276.4 4.9 62.8 295 920 22 32 21 22 38 00 J1255+1817 17 51 59 22.8 278.1 4.9 63.2 35 920 22 38 00 22 39 30 --- 17 53 29 22.5 278.3 4.9 63.1 90 931 22 38 01 22 39 30 SDSSJ1258+16 17 53 29 22.5 276.7 4.9 62.7 -5 931 No stop 22 44 30 --- 17 58 30 21.4 277.3 5.0 62.6 295 970 22 39 31 22 44 30 J1255+1817 17 58 30 21.4 278.9 5.0 62.9 -5 970 No stop 22 46 00 --- 18 00 00 21.1 279.1 5.1 62.9 85 982 22 44 31 ---------- Fringe Finder ---------- 22 50 00 3C345 18 04 01 71.6 303.5 1.3 111.8 36 982 22 50 00 22 55 00 --- 18 09 02 70.7 302.5 1.4 110.0 300 1020 22 50 01 22 59 00 SDSSJ1258+16 18 13 02 18.3 279.0 5.2 62.1 29 1020 22 59 00 23 04 00 --- 18 18 03 17.3 279.6 5.3 61.9 300 1059 22 59 01 23 04 40 J1255+1817 18 18 43 17.2 281.2 5.4 62.1 35 1059 23 04 40 23 06 10 --- 18 20 13 16.9 281.4 5.4 62.1 90 1070 23 04 41 23 06 10 SDSSJ1258+16 18 20 13 16.8 279.8 5.3 61.8 -5 1070 No stop 23 11 10 --- 18 25 14 15.8 280.4 5.4 61.6 295 1109 23 06 11 Schedule for TIANMA65 (Code T6 ) Page 5 Observations of radio-quiet quasars: SDSSJ1258+1657 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 9 Mar 2023 Day 68 --- 23 11 10 J1255+1817 18 25 14 15.8 282.0 5.5 61.8 -5 1109 No stop 23 12 40 --- 18 26 45 15.5 282.2 5.5 61.8 85 1121 23 11 11 23 12 40 SDSSJ1258+16 18 26 45 15.4 280.6 5.5 61.6 -5 1121 No stop 23 17 40 --- 18 31 45 14.4 281.2 5.5 61.4 295 1159 23 12 41 23 18 20 J1255+1817 18 32 25 14.3 282.8 5.6 61.5 35 1159 23 18 20 23 19 50 --- 18 33 56 14.0 283.0 5.6 61.4 90 1171 23 18 21 23 19 50 SDSSJ1258+16 18 33 56 13.9 281.5 5.6 61.3 -5 1171 No stop 23 24 50 --- 18 38 57 12.9 282.1 5.7 61.0 295 1210 23 19 51 23 24 50 J1255+1817 18 38 57 12.9 283.6 5.7 61.2 -5 1210 No stop 23 26 20 --- 18 40 27 12.6 283.8 5.7 61.1 85 1221 23 24 51 23 26 20 SDSSJ1258+16 18 40 27 12.6 282.2 5.7 61.0 -5 1221 No stop 23 31 20 --- 18 45 28 11.5 282.8 5.8 60.7 295 1260 23 26 21 23 32 00 J1255+1817 18 46 08 11.5 284.4 5.8 60.8 35 1260 23 32 00 23 33 30 --- 18 47 38 11.1 284.6 5.8 60.7 90 1271 23 32 01 23 33 30 SDSSJ1258+16 18 47 38 11.1 283.1 5.8 60.6 -5 1271 No stop 23 38 30 --- 18 52 39 10.0 283.7 5.9 60.4 295 1310 23 33 31 23 38 30 J1255+1817 18 52 39 10.1 285.2 5.9 60.4 -5 1310 No stop 23 40 00 --- 18 54 09 9.8 285.4 6.0 60.3 85 1322 23 38 31 --- Fri 10 Mar 2023 Day 69 --- ---------- Fringe Finder ---------- 01 20 40 3C345 20 35 06 42.9 297.3 3.9 81.7 5830 1322 01 20 40 01 25 40 --- 20 40 06 42.0 297.5 3.9 81.1 300 1360 01 20 41 ---------- Fringe Finder ---------- 03 53 30 3C345 23 08 21 15.1 307.7 6.4 61.8 8867 1360 03 53 30 03 58 30 --- 23 13 22 14.2 308.2 6.5 61.2 300 1399 03 53 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess123.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: 10 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= 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 Net SB= L L U U L L U U IF SB = L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 5 1 5 2 6 2 6 BBC SB= U U L L U U L L IF = A4 B3 A4 B3 A4 B3 A4 B3 The following frequency sets based on these setups were used. Frequency Set: 15 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= 643.51 643.51 643.51 643.51 579.51 579.51 579.51 579.51 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 15 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) * SDSSJ1258+16 12 55 50.556638 * 12 58 19.260000 12 59 28.920060 0.00 17 13 28.57998 * 16 57 17.50000 16 49 39.51460 0.00 From catalog imbedded in main SCHED input file. * J1255+1817 12 53 03.219339 * 12 55 31.759900 12 56 41.368121 0.00 18 34 04.91798 * 18 17 50.91000 18 10 11.54795 0.00 From catalog imbedded in main SCHED input file. * 4C39.25 09 23 55.319219 * 09 27 03.013940 09 28 30.864013 0.00 39 15 23.56640 * 39 02 20.85180 38 56 21.71789 0.00 From catalog imbedded in main SCHED input file. * 3C345 16 41 17.606263 * 16 42 58.810000 16 43 45.666402 0.00 39 54 10.81494 * 39 48 36.99400 39 45 39.94964 0.00 From catalog imbedded in main SCHED input file. 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 SDSSJ1258+1sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 6.500 526.334 J1255+1817 sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 2.033 145.475 4C39.25 sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 0.083 8.750 3C345 sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 0.333 31.302 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) SDSSJ1258+16 152.6 J1255+1817 152.7 4C39.25 137.0 3C345 99.8 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