COVER INFORMATION Station: URUMQI (Code Ur ) Experiment: Network Monitoring Experiment Exp. Code: N24C3 Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; Feburary 2020 PI: Benito Marcote Address: JIVE Oude Hoogeveensedijk 4 Dwingeloo Netherlands Phone: +31 521 596 508 EMAIL: marcote@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: vlbi Notes: C-band (6cm) NME and ftp fringe test for Session 3, 2024. EVN: 4 Gbps, 16 IFs, 32 MHz filters, L+R, 2-bit sampling MER: 512Mbps/2IF/64MHz, UR: 2Gbps/8IF/32MHz, W1: 1 Gbps/4IF/32MHz Please DO NOT use the phase cal signal. COVER LETTER: This is the schedule for the 6cm NME and ftp fringe test on 25 October 2024 involving 11 EVN antennas + eMERLIN: Jb2, Wb, Ef, O8, T6, Ur, Tr, Ys, Hh, Ir, Sr, Cm, Da, Kn, Pi, De. The NME uses a standard setup with a datarate of 4 Gbps, with eMERLIN at 0.5 Gbps, Ur at 2 Gbps, and Wb at 1 Gbps. The NME lasts for 3 hours and consists of long scans on calibrators: J1751+0939 and J2031+1219. with ftp grabs every other scan at the following times (in UT): 12:10:00 (scan 2, 2 sec, J1751+0939) 12:40:00 (scan 4, 2 sec, J1751+0939) 13:10:00 (scan 6, 2 sec, J2031+1219) 13:40:00 (scan 8, 2 sec, J2031+1219) 14:10:00 (scan 10, 2 sec, J2031+1219) 14:40:00 (scan 12, 2 sec, J2031+1219) 14:59:00 (scan 14, 2 sec, J2031+1219) Good luck with the session! Benito Marcote 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 ---------------------------------------------------------------------------------------- --- Fri 25 Oct 2024 Day 299 --- 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 J1751+0939 20 06 11 45.5 230.6 2.2 34.7 0 0 12 00 00 12 02 00 =1749+096 20 08 11 45.2 231.2 2.3 35.0 120 31 12 00 01 12 07 00 J1751+0939 20 13 12 44.5 232.6 2.3 35.8 298 31 12 07 00 12 12 00 =1749+096 20 18 13 43.7 234.0 2.4 36.6 300 108 12 07 01 12 17 00 J1751+0939 20 23 14 43.0 235.4 2.5 37.3 298 108 12 17 00 12 27 00 =1749+096 20 33 16 41.5 238.0 2.7 38.6 600 262 12 17 01 12 32 00 J1751+0939 20 38 16 40.7 239.3 2.8 39.3 298 262 12 32 00 12 42 00 =1749+096 20 48 18 39.1 241.8 2.9 40.4 600 415 12 32 01 12 47 00 J2031+1219 20 53 19 58.6 189.5 0.3 7.1 242 415 12 47 00 12 57 00 =2029+121 21 03 21 58.3 194.1 0.5 10.5 600 569 12 47 01 13 02 00 J2031+1219 21 08 21 58.0 196.4 0.6 12.1 297 569 13 02 00 13 12 00 =2029+121 21 18 23 57.4 200.9 0.8 15.4 600 723 13 02 01 13 17 00 J2031+1219 21 23 24 57.1 203.0 0.8 16.9 298 723 13 17 00 13 27 00 =2029+121 21 33 25 56.3 207.3 1.0 19.9 600 877 13 17 01 13 32 00 J2031+1219 21 38 26 55.9 209.3 1.1 21.4 298 877 13 32 00 13 42 00 =2029+121 21 48 28 55.0 213.3 1.3 24.1 600 1031 13 32 01 13 47 00 J2031+1219 21 53 29 54.4 215.2 1.3 25.4 298 1031 13 47 00 13 57 00 =2029+121 22 03 30 53.3 219.0 1.5 27.9 600 1185 13 47 01 14 02 00 J2031+1219 22 08 31 52.8 220.7 1.6 29.0 298 1185 14 02 00 14 12 00 =2029+121 22 18 33 51.5 224.2 1.8 31.2 600 1338 14 02 01 14 17 00 J2031+1219 22 23 34 50.9 225.9 1.8 32.2 298 1338 14 17 00 14 27 00 =2029+121 22 33 35 49.5 229.1 2.0 34.1 600 1492 14 17 01 14 32 00 J2031+1219 22 38 36 48.9 230.6 2.1 35.0 298 1492 14 32 00 14 42 00 =2029+121 22 48 38 47.4 233.6 2.3 36.7 600 1646 14 32 01 14 47 00 J2031+1219 22 53 39 46.7 235.0 2.3 37.5 298 1646 14 47 00 14 52 00 =2029+121 22 58 39 45.9 236.4 2.4 38.2 300 1723 14 47 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 ---------------------------------------------------------------------------------------- --- Fri 25 Oct 2024 Day 299 --- 14 57 00 J2031+1219 23 03 40 45.2 237.8 2.5 38.9 298 1723 14 57 00 15 00 00 =2029+121 23 06 41 44.7 238.6 2.6 39.4 180 1769 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: sess324.C4096 Matching groups in /Users/hawky/.pysched/catalogs/freq_RDBE.dat: ur6cm_g Generated from sess119C2Gglob.setini, sess119C5nme.setini, sess119CGline.setini* Setup group: 9 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) 1749+096 17 49 10.387930 * 17 51 32.818574 17 52 42.554513 0.00 * J1751+0939 09 39 42.82586 * 09 39 00.72841 09 38 43.72523 0.00 J1751+09 /Users/hawky/.pysched/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 192391 observations. 2029+121 20 29 32.681260 * 20 31 54.994267 20 33 05.414525 0.01 * J2031+1219 12 09 28.75299 * 12 19 41.34015 12 24 51.31940 0.02 J2031+12 /Users/hawky/.pysched/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 4314 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 J1751+0939 sess324.C4096 1 2 3 4 5 6 7 9 10 11 12 0.450 54.000 J2031+1219 sess324.C4096 1 2 3 4 5 6 7 9 10 11 12 1.467 176.000 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) J1751+0939 61.4 J2031+1219 100.1 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