COVER INFORMATION Station: URUMQI (Code Ur ) Experiment: new UCD -6cm Exp. Code: EG126A Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Jose C. Guirado Address: Dpto. Astronomia, Univ. Valencia Dr. Moliner 50 E-46100 Burjassot Valencia, Spain Phone: +34 963543073 EMAIL: guirado@uv.es Fax: +34 963543084 Phone during observation: +34 963543073, +34629509130 Observing mode: Phase-referencing at 6cm (2048 Mb/s) Notes: Dual Pol Schedule for URUMQI (Code Ur ) Page 2 new UCD -6cm 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 ---------------------------------------------------------------------------------------- --- Fri 3 Nov 2023 Day 307 --- Next scan frequencies: 4824.00 4824.00 4824.00 4824.00 4888.00 4888.00 4888.00 4888.00 4952.00 4952.00 4952.00 4952.00 5016.00 5016.00 5016.00 5016.00 Next BBC frequencies: 204.00 204.00 204.00 204.00 268.00 268.00 268.00 268.00 332.00 332.00 332.00 332.00 396.00 396.00 396.00 396.00 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 06 00 00 3C273 14 37 42 39.7 223.3 2.1 29.9 0 0 06 00 00 06 06 00 --- 14 43 43 39.0 225.0 2.2 30.9 360 92 06 00 01 06 08 00 J1120-1243 14 45 43 16.9 232.5 3.4 36.2 73 92 06 08 00 06 13 00 --- 14 50 44 16.2 233.5 3.5 36.7 300 169 06 08 01 06 13 00 2MASSJ1119 14 50 44 17.0 234.3 3.5 37.0 -5 169 No stop 06 17 00 --- 14 54 45 16.4 235.1 3.6 37.5 235 231 06 13 01 06 17 30 J1120-1243 14 55 15 15.6 234.4 3.6 37.2 25 231 06 17 30 06 19 00 --- 14 56 45 15.3 234.7 3.6 37.4 90 254 06 17 31 06 19 00 2MASSJ1119 14 56 45 16.1 235.5 3.6 37.7 -5 254 No stop 06 23 00 --- 15 00 46 15.5 236.3 3.7 38.1 235 315 06 19 01 06 23 30 J1120-1243 15 01 16 14.7 235.6 3.7 37.9 25 315 06 23 30 06 25 00 --- 15 02 46 14.4 235.9 3.7 38.1 90 338 06 23 31 06 25 00 2MASSJ1119 15 02 46 15.2 236.7 3.7 38.3 -5 338 No stop 06 29 00 --- 15 06 47 14.6 237.5 3.8 38.7 235 400 06 25 01 06 29 30 J1120-1243 15 07 17 13.8 236.8 3.8 38.5 25 400 06 29 30 06 31 00 --- 15 08 47 13.5 237.1 3.8 38.7 90 423 06 29 31 06 31 00 2MASSJ1119 15 08 47 14.3 237.9 3.8 38.9 -5 423 No stop 06 35 00 --- 15 12 48 13.7 238.7 3.9 39.3 235 485 06 31 01 06 35 30 J1120-1243 15 13 18 12.8 238.0 3.9 39.1 25 485 06 35 30 06 37 00 --- 15 14 48 12.6 238.3 3.9 39.3 90 508 06 35 31 06 37 00 2MASSJ1119 15 14 48 13.3 239.1 3.9 39.5 -5 508 No stop 06 41 00 --- 15 18 48 12.7 239.9 4.0 39.9 235 569 06 37 01 06 41 30 J1120-1243 15 19 19 11.9 239.1 4.0 39.7 25 569 06 41 30 06 43 00 --- 15 20 49 11.7 239.4 4.0 39.9 90 592 06 41 31 06 43 00 2MASSJ1119 15 20 49 12.4 240.3 4.0 40.1 -5 592 No stop 06 47 00 --- 15 24 49 11.8 241.0 4.1 40.4 235 654 06 43 01 Schedule for URUMQI (Code Ur ) Page 3 new UCD -6cm 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 ---------------------------------------------------------------------------------------- --- Fri 3 Nov 2023 Day 307 --- 06 47 30 J1120-1243 15 25 20 11.0 240.3 4.1 40.3 25 654 06 47 30 06 49 00 --- 15 26 50 10.7 240.6 4.1 40.4 90 677 06 47 31 06 49 00 2MASSJ1119 15 26 50 11.5 241.4 4.1 40.6 -5 677 No stop 06 53 00 --- 15 30 50 10.8 242.2 4.2 41.0 235 738 06 49 01 06 53 30 J1120-1243 15 31 21 10.0 241.4 4.2 40.8 25 738 06 53 30 06 55 00 --- 15 32 51 9.8 241.7 4.2 40.9 90 762 06 53 31 06 55 00 2MASSJ1119 15 32 51 10.5 242.5 4.2 41.1 -5 762 No stop 06 59 00 --- 15 36 51 9.8 243.3 4.3 41.5 235 823 06 55 01 06 59 30 J1120-1243 15 37 22 9.0 242.5 4.3 41.3 25 823 06 59 30 07 01 00 --- 15 38 52 8.8 242.8 4.3 41.5 90 846 06 59 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess323.C4096 --- 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: 8 Station: URUMQI Total bit rate: 2048 Format: MARK5B Bits per sample: 2 Sample rate: 64.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 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 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= L L U U L L U U L L U U L L U U IF = A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 The following frequency sets based on these setups were used. Frequency Set: 6 Setup file default. Used with PCAL = off LO sum= 4824.00 4824.00 4824.00 4824.00 4888.00 4888.00 4888.00 4888.00 4952.00 4952.00 4952.00 4952.00 5016.00 5016.00 5016.00 5016.00 BBC fr= 204.00 204.00 204.00 204.00 268.00 268.00 268.00 268.00 332.00 332.00 332.00 332.00 396.00 396.00 396.00 396.00 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: 6 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) * 3C273 12 26 33.245846 * 12 29 06.699742 12 30 18.319762 0.00 02 19 43.30561 * 02 03 08.59812 01 55 22.75877 0.00 From catalog imbedded in main SCHED input file. * 2MASSJ1119 11 17 01.266977 * 11 19 32.564510 11 20 43.325760 0.00 -11 21 22.43000 *-11 37 48.03800 -11 45 24.69011 0.00 From catalog imbedded in main SCHED input file. * J1120-1243 11 17 40.982800 * 11 20 12.080526 11 21 22.734841 0.00 -12 27 11.69570 *-12 43 37.82838 -12 51 14.47363 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 3C273 sess323.C4096 1 2 3 4 5 6 7 8 0.200 6.400 2MASSJ1119 sess323.C4096 1 2 3 4 5 6 7 8 2.400 64.966 J1120-1243 sess323.C4096 1 2 3 4 5 6 7 8 1.017 27.559 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) 3C273 34.7 2MASSJ1119 46.8 J1120-1243 46.4 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