COVER INFORMATION Station: URUMQI (Code Ur ) Experiment: CLAGN 1ES 1927+654 Exp. Code: EY038B Schedule Version: 4.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Xiaolong Yang Address: Shanghai Astronomical Observatory 80 Nandan Road Shanghai China Phone: +86 18810844136 EMAIL: yangxl@shao.ac.cn Fax: Phone during observation: +86 18810844136 Observing mode: Phase-referencing mode at 18cm (1024Mb/s) Notes: Schedule for URUMQI (Code Ur ) Page 2 CLAGN 1ES 1927+654 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 26 Oct 2023 Day 299 --- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 526.49 526.49 526.49 526.49 590.49 590.49 590.49 590.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 16 00 00 1933+655 00 07 48 47.5 -34.4 4.6 86.6 0 0 16 00 00 16 01 00 --- 00 08 48 47.4 -34.4 4.6 86.4 60 8 16 00 01 16 01 00 1933+655 00 08 48 47.4 -34.4 4.6 86.4 -2 8 No stop 16 04 45 --- 00 12 34 47.0 -34.4 4.6 85.6 223 37 16 01 01 16 05 15 1927+654 00 13 04 46.2 -34.4 4.8 83.9 26 37 16 05 15 16 09 05 --- 00 16 54 45.8 -34.4 4.8 83.1 230 66 16 05 16 16 09 05 1933+655 00 16 54 46.5 -34.3 4.7 84.6 -4 66 No stop 16 10 05 --- 00 17 55 46.4 -34.3 4.7 84.4 56 74 16 09 06 16 10 05 1927+654 00 17 55 45.7 -34.4 4.8 82.9 -4 74 No stop 16 14 05 --- 00 21 55 45.3 -34.3 4.9 82.0 236 104 16 10 06 16 14 05 1933+655 00 21 55 46.0 -34.3 4.8 83.6 -4 104 No stop 16 15 05 --- 00 22 55 45.9 -34.2 4.8 83.3 56 112 16 14 06 16 15 35 1927+654 00 23 25 45.2 -34.3 4.9 81.7 26 112 16 15 35 16 19 20 --- 00 27 11 44.8 -34.2 5.0 80.9 225 141 16 15 36 16 19 20 1933+655 00 27 11 45.5 -34.2 4.9 82.4 -4 141 No stop 16 20 20 --- 00 28 11 45.4 -34.1 4.9 82.2 56 149 16 19 21 16 20 20 1927+654 00 28 11 44.7 -34.1 5.0 80.7 -4 149 No stop 16 24 20 --- 00 32 12 44.3 -34.1 5.1 79.8 236 179 16 20 21 16 24 20 1933+655 00 32 12 45.0 -34.1 5.0 81.4 -4 179 No stop 16 25 20 --- 00 33 12 44.9 -34.0 5.0 81.1 56 187 16 24 21 16 25 50 1927+654 00 33 42 44.1 -34.0 5.1 79.5 26 187 16 25 50 16 29 35 --- 00 37 28 43.7 -33.9 5.2 78.7 225 216 16 25 51 16 29 35 1933+655 00 37 28 44.4 -33.9 5.1 80.2 -4 216 No stop 16 30 35 --- 00 38 28 44.3 -33.9 5.1 80.0 56 224 16 29 36 16 30 35 1927+654 00 38 28 43.6 -33.9 5.2 78.5 -4 224 No stop 16 34 35 --- 00 42 29 43.2 -33.8 5.3 77.7 236 254 16 30 36 16 34 35 1933+655 00 42 29 43.9 -33.8 5.1 79.2 -4 254 No stop 16 35 35 --- 00 43 29 43.8 -33.8 5.2 79.0 56 262 16 34 36 Schedule for URUMQI (Code Ur ) Page 3 CLAGN 1ES 1927+654 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 26 Oct 2023 Day 299 --- 16 36 05 1927+654 00 43 59 43.1 -33.7 5.3 77.4 26 262 16 36 05 16 39 50 --- 00 47 44 42.7 -33.6 5.3 76.6 225 291 16 36 06 16 39 50 1933+655 00 47 44 43.4 -33.7 5.2 78.1 -4 291 No stop 16 40 50 --- 00 48 45 43.3 -33.6 5.2 77.9 56 299 16 39 51 16 40 50 1927+654 00 48 45 42.6 -33.6 5.4 76.4 -4 299 No stop 16 44 50 --- 00 52 45 42.2 -33.4 5.4 75.6 236 329 16 40 51 16 44 50 1933+655 00 52 45 42.9 -33.5 5.3 77.0 -4 329 No stop 16 45 50 --- 00 53 45 42.8 -33.5 5.3 76.8 56 337 16 44 51 16 46 20 1927+654 00 54 15 42.1 -33.4 5.4 75.3 26 337 16 46 20 16 50 05 --- 00 58 01 41.7 -33.2 5.5 74.5 225 366 16 46 21 16 50 05 1933+655 00 58 01 42.4 -33.3 5.4 76.0 -4 366 No stop 16 51 05 --- 00 59 01 42.3 -33.3 5.4 75.8 56 374 16 50 06 16 51 05 1927+654 00 59 01 41.6 -33.2 5.5 74.3 -4 374 No stop 16 55 05 --- 01 03 02 41.2 -33.1 5.6 73.5 236 404 16 51 06 16 55 05 1933+655 01 03 02 41.9 -33.2 5.5 74.9 -4 404 No stop 16 56 05 --- 01 04 02 41.8 -33.1 5.5 74.7 56 412 16 55 06 16 56 35 1927+654 01 04 32 41.0 -33.0 5.6 73.2 26 412 16 56 35 17 00 20 --- 01 08 18 40.7 -32.8 5.7 72.4 225 441 16 56 36 17 00 20 1933+655 01 08 18 41.4 -33.0 5.6 73.9 -4 441 No stop 17 01 20 --- 01 09 18 41.3 -32.9 5.6 73.7 56 449 17 00 21 17 01 20 1927+654 01 09 18 40.6 -32.8 5.7 72.2 -4 449 No stop 17 05 20 --- 01 13 19 40.2 -32.6 5.8 71.4 236 479 17 01 21 17 05 20 1933+655 01 13 19 40.9 -32.8 5.7 72.9 -4 479 No stop 17 06 20 --- 01 14 19 40.8 -32.7 5.7 72.7 56 487 17 05 21 17 06 50 1927+654 01 14 49 40.0 -32.6 5.8 71.1 26 487 17 06 50 17 10 35 --- 01 18 34 39.7 -32.4 5.9 70.4 225 516 17 06 51 17 10 35 1933+655 01 18 34 40.3 -32.6 5.7 71.8 -4 516 No stop 17 11 35 --- 01 19 35 40.2 -32.5 5.8 71.6 56 524 17 10 36 17 11 35 1927+654 01 19 35 39.6 -32.4 5.9 70.2 -4 524 No stop 17 15 35 --- 01 23 35 39.2 -32.2 5.9 69.4 236 554 17 11 36 Schedule for URUMQI (Code Ur ) Page 4 CLAGN 1ES 1927+654 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 26 Oct 2023 Day 299 --- 17 15 35 1933+655 01 23 35 39.9 -32.3 5.8 70.8 -4 554 No stop 17 16 35 --- 01 24 35 39.8 -32.3 5.8 70.6 56 562 17 15 36 17 17 05 1927+654 01 25 06 39.0 -32.1 6.0 69.1 26 562 17 17 05 17 20 50 --- 01 28 51 38.7 -31.9 6.0 68.3 225 591 17 17 06 17 20 50 1933+655 01 28 51 39.3 -32.1 5.9 69.7 -4 591 No stop 17 21 50 --- 01 29 51 39.2 -32.1 5.9 69.5 56 599 17 20 51 17 21 50 1927+654 01 29 51 38.6 -31.9 6.0 68.1 -4 599 No stop 17 25 50 --- 01 33 52 38.2 -31.7 6.1 67.4 236 629 17 21 51 17 25 50 1933+655 01 33 52 38.9 -31.9 6.0 68.8 -4 629 No stop 17 26 50 --- 01 34 52 38.8 -31.8 6.0 68.6 56 637 17 25 51 17 27 20 1927+654 01 35 22 38.0 -31.6 6.1 67.1 26 637 17 27 20 17 31 05 --- 01 39 08 37.7 -31.4 6.2 66.3 225 666 17 27 21 17 31 05 1933+655 01 39 08 38.4 -31.6 6.1 67.7 -4 666 No stop 17 32 05 --- 01 40 08 38.3 -31.6 6.1 67.5 56 674 17 31 06 17 32 05 1927+654 01 40 08 37.6 -31.3 6.2 66.1 -4 674 No stop 17 36 05 --- 01 44 09 37.2 -31.1 6.3 65.3 236 704 17 32 06 17 36 05 1933+655 01 44 09 37.9 -31.4 6.2 66.7 -4 704 No stop 17 37 05 --- 01 45 09 37.8 -31.3 6.2 66.5 56 712 17 36 06 17 37 35 1927+654 01 45 39 37.1 -31.1 6.3 65.1 26 712 17 37 35 17 41 20 --- 01 49 25 36.7 -30.8 6.4 64.3 225 741 17 37 36 17 41 20 1933+655 01 49 25 37.4 -31.1 6.3 65.7 -4 741 No stop 17 42 20 --- 01 50 25 37.3 -31.0 6.3 65.5 56 749 17 41 21 17 42 20 1927+654 01 50 25 36.6 -30.8 6.4 64.1 -4 749 No stop 17 46 20 --- 01 54 25 36.3 -30.6 6.4 63.4 236 779 17 42 21 17 46 20 1933+655 01 54 25 36.9 -30.8 6.3 64.7 -4 779 No stop 17 47 20 --- 01 55 26 36.8 -30.8 6.4 64.5 56 787 17 46 21 17 47 50 1927+654 01 55 56 36.1 -30.5 6.5 63.1 26 787 17 47 50 17 51 35 --- 01 59 41 35.8 -30.3 6.5 62.3 225 816 17 47 51 17 51 35 1933+655 01 59 41 36.4 -30.5 6.4 63.7 -4 816 No stop 17 52 35 --- 02 00 41 36.3 -30.5 6.4 63.5 56 824 17 51 36 Schedule for URUMQI (Code Ur ) Page 5 CLAGN 1ES 1927+654 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 26 Oct 2023 Day 299 --- 17 52 35 1927+654 02 00 41 35.7 -30.2 6.6 62.1 -4 824 No stop 17 56 30 --- 02 04 37 35.3 -30.0 6.6 61.4 231 854 17 52 36 17 57 00 1933+655 02 05 07 35.9 -30.2 6.5 62.6 26 854 17 57 00 18 00 00 --- 02 08 08 35.7 -30.0 6.6 62.1 180 877 17 57 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess323.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: 8 Station: URUMQI Total bit rate: 1024 Format: MARK5B 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= 1100.00 1100.00 1100.00 1100.00 1100.00 1100.00 1100.00 1100.00 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 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A2 C1 A2 C1 A2 C1 A2 C1 The following frequency sets based on these setups were used. Frequency Set: 7 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= 526.49 526.49 526.49 526.49 590.49 590.49 590.49 590.49 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= 10, 14, 2, 6, 12, 16, 4, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * 1927+654 19 27 01.925575 * 19 27 19.540000 19 27 26.388495 0.00 65 27 42.27538 * 65 33 54.31000 65 37 02.62567 0.00 From catalog imbedded in main SCHED input file. * 1933+655 19 33 38.733765 * 19 33 57.337278 19 34 04.690383 0.22 J1933+6540 65 33 38.07675 * 65 40 16.82831 65 43 38.02256 0.09 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 273 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 1927+654 sess323.L1024 1 2 3 4 5 6 7 8 9 1.421 48.810 1933+655 sess323.L1024 1 2 3 4 5 6 7 8 9 0.479 11.795 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) 1927+654 97.7 1933+655 98.4 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