COVER INFORMATION Station: URUMQI (Code Ur ) Experiment: Network Monitoring Experiment Exp. Code: N23C2 Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Suma Murthy Address: JIVE Oude Hoogeveensedijk 4 7991PD Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: murthy@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: Notes: 6cm NME and ftp fringe test for Session 2 2023 (4096 Mbps, L+R, 2-bit sampling, 32 MHz filters) Please send the disk pack by express to JIVE v.2 - no DBBC3 testing yet COVER LETTER: This is the schedule for the 6cm NME and ftp fringe-test on 25th May 2023 involving the following antennas: Jb2 Wb1 Ef Mc Nt On85 T6 Ur Tr Ys Hh Ib Km Cm Da De Pi Kn The NME uses a standard setup with 4096 Mbps. The schedule consists of long integrations on calibrator J0804+2006. We shall use J0905+2052 for phase referencing. We will also use a single scan on J0806+4504 for the flux calibration of e-MERLIN stations. The following ftp-fringe tests are scheduled throughout the experiment (UT times): 12:13:00 (scan 2, 2 sec, J0804+2006) 12:35:00 (scan 4, 2 sec, J0804+2006) 13:05:00 (scan 6, 2 sec, J0804+2006) 13:35:00 (scan 10, 2 sec, J0804+2006) 14:05:00 (scan 14, 2 sec, J0804+2006) 14:35:00 (scan 18, 2 sec, J0804+2006) Happy C-inging! Suma Murthy 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 25 May 2023 Day 145 --- 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 12 00 00 J0806+4504 09 59 59 70.0 -75.8 1.9 84.5 0 0 12 00 00 12 05 00 =0803+452 10 05 00 69.1 -75.6 1.9 83.8 300 77 12 00 01 12 08 00 J0854+2006 10 08 00 62.1 218.3 1.2 28.6 -119 77 12 08 00 12 15 00 =OJ287 10 15 01 61.3 221.4 1.3 30.7 301 185 12 08 01 12 20 00 J0854+2006 10 20 02 60.7 223.4 1.4 32.1 298 185 12 20 00 12 22 00 =OJ287 10 22 03 60.5 224.3 1.4 32.6 120 215 12 20 01 12 27 00 J0854+2006 10 27 03 59.8 226.2 1.5 33.9 298 215 12 27 00 12 37 00 =OJ287 10 37 05 58.5 230.0 1.7 36.3 600 369 12 27 01 12 42 00 J0854+2006 10 42 06 57.8 231.8 1.8 37.4 298 369 12 42 00 12 52 00 =OJ287 10 52 07 56.3 235.2 1.9 39.3 600 523 12 42 01 12 57 00 J0854+2006 10 57 08 55.5 236.8 2.0 40.3 298 523 12 57 00 13 07 00 =OJ287 11 07 10 54.0 239.9 2.2 41.9 600 677 12 57 01 13 09 00 J0854+2006 11 09 10 53.7 240.5 2.2 42.2 118 677 13 09 00 13 13 00 =OJ287 11 13 11 53.0 241.6 2.3 42.8 240 738 13 09 01 13 13 00 J0905+2052 11 13 11 55.2 239.4 2.1 41.9 -7 738 No stop 13 16 00 --- 11 16 11 54.8 240.3 2.2 42.4 173 785 13 13 01 13 18 00 J0854+2006 11 18 12 52.2 243.0 2.4 43.5 113 785 13 18 00 13 22 00 =OJ287 11 22 12 51.6 244.1 2.4 44.0 240 846 13 18 01 13 27 00 J0854+2006 11 27 13 50.8 245.5 2.5 44.6 298 846 13 27 00 13 37 00 =OJ287 11 37 15 49.1 248.1 2.7 45.8 600 1000 13 27 01 13 39 00 J0854+2006 11 39 15 48.8 248.6 2.7 46.0 118 1000 13 39 00 13 43 00 =OJ287 11 43 16 48.1 249.5 2.8 46.4 240 1062 13 39 01 13 43 00 J0905+2052 11 43 16 50.4 247.8 2.6 45.9 -8 1062 No stop 13 46 00 --- 11 46 16 49.9 248.5 2.7 46.3 172 1108 13 43 01 13 48 00 J0854+2006 11 48 17 47.2 250.7 2.9 46.8 112 1108 13 48 00 13 52 00 =OJ287 11 52 17 46.5 251.7 2.9 47.2 240 1169 13 48 01 Schedule for URUMQI (Code Ur ) Page 3 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 25 May 2023 Day 145 --- 13 57 00 J0854+2006 11 57 18 45.7 252.8 3.0 47.6 298 1169 13 57 00 14 07 00 =OJ287 12 07 20 43.9 255.1 3.2 48.3 600 1323 13 57 01 14 09 00 J0854+2006 12 09 20 43.6 255.5 3.2 48.4 118 1323 14 09 00 14 13 00 =OJ287 12 13 21 42.9 256.3 3.3 48.6 240 1385 14 09 01 14 13 00 J0905+2052 12 13 21 45.2 254.9 3.1 48.5 -8 1385 No stop 14 16 00 --- 12 16 21 44.7 255.5 3.2 48.7 172 1431 14 13 01 14 18 00 J0854+2006 12 18 22 42.0 257.4 3.4 48.9 112 1431 14 18 00 14 22 00 =OJ287 12 22 22 41.3 258.2 3.4 49.1 240 1492 14 18 01 14 27 00 J0854+2006 12 27 23 40.4 259.2 3.5 49.4 298 1492 14 27 00 14 37 00 =OJ287 12 37 25 38.6 261.2 3.7 49.8 600 1646 14 27 01 14 42 00 J0854+2006 12 42 26 37.7 262.2 3.8 49.9 298 1646 14 42 00 14 52 00 =OJ287 12 52 27 35.9 264.1 3.9 50.2 600 1800 14 42 01 14 54 00 J0905+2052 12 54 28 37.9 263.2 3.8 50.4 112 1800 14 54 00 14 57 00 --- 12 57 28 37.3 263.8 3.8 50.5 180 1846 14 54 01 14 57 00 J0854+2006 12 57 28 35.0 265.0 4.0 50.3 -8 1846 No stop 15 00 00 =OJ287 13 00 28 34.4 265.5 4.1 50.4 172 1892 14 57 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess223.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: 10 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= 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: 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) * J0905+2052 09 02 22.789418 * 09 05 14.337300 09 06 33.475548 0.00 21 04 13.50391 * 20 52 13.30700 20 46 44.53708 0.00 From catalog imbedded in main SCHED input file. 0803+452 08 03 02.295930 * 08 06 33.472537 08 08 10.411260 0.12 * J0806+4504 45 13 11.29504 * 45 04 32.27265 45 00 42.40919 0.10 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 151 observations. OJ287 08 51 57.250615 * 08 54 48.874927 08 56 07.986733 0.00 * J0854+2006 20 17 58.41740 * 20 06 30.64085 20 01 16.65897 0.00 0851+202 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0854+20 GSFC 2016a X/S astro solution, 270807 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 J0905+2052 sess223.C4096 1 2 3 4 5 6 7 8 9 11 12 17 0.200 24.034 J0806+4504 sess223.C4096 1 2 3 4 5 6 7 8 9 11 12 0.083 10.000 J0854+2006 sess223.C4096 1 2 3 4 5 6 7 8 9 11 12 17 1.767 236.049 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) J0905+2052 68.9 J0806+4504 54.3 J0854+2006 66.7 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