COVER INFORMATION Station: URUMQI (Code Ur ) Experiment: Network Monitoring Experiment Exp. Code: N21C2 Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Dhanya Nair Address: JIVE Oude Hoogeveensedijk 4 7991PD Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: nair@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: Notes: 6cm NME and ftp fringe test for Session 2 2021 (2048 Mbps, L+R, 2-bit sampling, 32 MHz filters) Please send the disk pack by express to JIVE COVER LETTER: This is the schedule for the 6cm NME and ftp fringe-test on 10th June 2021 involving the following antennas: Jb1 Wb1 Ef Mc Nt On85 T6 Ur Tr Ys Hh Sv Zc Bd Ir Km e-MERLIN The NME uses a standard setup with 2048 Mbps. The schedule consists of long integrations on calibrators J0854+2006 and J1058+0133 for ftp-fringe tests. The following ftp-fringe tests are scheduled throughout the experiment (UT times): 12:10:00 (scan 1, 2 sec, J0854+2006) 12:40:00 (scan 3, 2 sec, J0854+2006) 13:10:00 (scan 5, 2 sec, J0854+2006) 13:40:00 (scan 7, 2 sec, J1058+0133) 14:10:00 (scan 9, 2 sec, J1058+0133) 14:40:00 (scan 11, 2 sec, J1058+0133) Clear Skies! Dhanya Nair Mattermost: coms.evlbi.org Schedule for URUMQI (Code Ur ) Page 2 Network Monitoring Experiment 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 Jun 2021 Day 161 --- Next scan frequencies: 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 Next BBC frequencies: 210.49 210.49 210.49 210.49 274.49 274.49 274.49 274.49 338.49 338.49 338.49 338.49 402.49 402.49 402.49 402.49 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 12 00 00 J0854+2006 11 04 58 54.3 239.3 2.1 41.6 0 0 12 00 00 12 12 00 =OJ287 11 17 00 52.4 242.7 2.3 43.4 720 185 12 00 01 12 17 00 J0854+2006 11 22 01 51.6 244.1 2.4 44.0 298 185 12 17 00 12 27 00 =OJ287 11 32 03 49.9 246.8 2.6 45.2 600 338 12 17 01 12 32 00 J0854+2006 11 37 04 49.1 248.1 2.7 45.8 298 338 12 32 00 12 42 00 =OJ287 11 47 05 47.4 250.5 2.9 46.7 600 492 12 32 01 12 47 00 J0854+2006 11 52 06 46.5 251.7 2.9 47.2 298 492 12 47 00 12 57 00 =OJ287 12 02 08 44.8 254.0 3.1 47.9 600 646 12 47 01 13 02 00 J0854+2006 12 07 09 43.9 255.1 3.2 48.3 298 646 13 02 00 13 12 00 =OJ287 12 17 10 42.2 257.2 3.4 48.9 600 800 13 02 01 13 17 00 J0854+2006 12 22 11 41.3 258.2 3.4 49.1 298 800 13 17 00 13 27 00 =OJ287 12 32 13 39.5 260.2 3.6 49.6 600 954 13 17 01 13 32 00 J1058+0133 12 37 14 42.7 214.2 1.6 24.1 249 954 13 32 00 13 42 00 =1055+018 12 47 15 41.6 217.3 1.8 26.1 600 1108 13 32 01 13 47 00 J1058+0133 12 52 16 41.1 218.8 1.9 27.0 298 1108 13 47 00 13 57 00 =1055+018 13 02 18 39.9 221.7 2.0 28.9 600 1262 13 47 01 14 02 00 J1058+0133 13 07 18 39.3 223.1 2.1 29.7 298 1262 14 02 00 14 12 00 =1055+018 13 17 20 38.0 225.9 2.3 31.4 600 1415 14 02 01 14 17 00 J1058+0133 13 22 21 37.3 227.2 2.4 32.2 298 1415 14 17 00 14 27 00 =1055+018 13 32 23 36.0 229.8 2.5 33.7 600 1569 14 17 01 14 32 00 J1058+0133 13 37 23 35.3 231.1 2.6 34.4 298 1569 14 32 00 14 42 00 =1055+018 13 47 25 33.8 233.6 2.8 35.7 600 1723 14 32 01 14 47 00 J1058+0133 13 52 26 33.1 234.8 2.9 36.4 298 1723 14 47 00 15 00 00 =1055+018 14 05 28 31.1 237.9 3.1 37.9 780 1923 14 47 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess221.C2048 --- 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: 13 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: 8 Setup file default. Used with PCAL = off LO sum= 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 210.49 210.49 210.49 210.49 274.49 274.49 274.49 274.49 338.49 338.49 338.49 338.49 402.49 402.49 402.49 402.49 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: 8 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) OJ287 08 51 57.250615 * 08 54 48.874927 08 56 00.413968 0.00 * J0854+2006 20 17 58.41740 * 20 06 30.64085 20 01 43.51705 0.00 0851+202 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0854+20 GSFC 2016a X/S astro solution, 270807 observations. 1055+018 10 55 55.313730 * 10 58 29.605208 10 59 34.590047 0.01 * J1058+0133 01 50 03.53722 * 01 33 58.82372 01 27 10.32628 0.01 J1058+01 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 8263 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 J0854+2006 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 1.033 217.000 J1058+0133 sess221.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 1.050 220.345 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) J0854+2006 50.9 J1058+0133 85.6 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