COVER INFORMATION Station: URUMQI (Code Ur ) Experiment: Network Monitoring Experiment Exp. Code: N25X1 Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Benito Marcote Address: JIVE Oude Hoogeveensedijk 4 Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: marcote@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: vlbi Notes: X-band (3.6cm) NME and ftp fringe test for Session 1, 2025. EVN: 2048 Mbps, 8 IFs, 32 MHz filters, L+R, 2-bit sampling Wb: 1 Gbps, 4 IFs, 32MHz Please DO NOT use the phase cal signal. COVER LETTER: This is the schedule for the 3.6cm NME and ftp fringe-test on 3 March 2025 involving the following 11 antennas: Wb1, Ef, Mc, Nt, On60, T6, Ur, Tr, Ys, Hh, Km, Wz. The NME uses a standard 2 Gbps setup (16 BBCs, 32 MHz, dual pol), exc. Wb1 (1 Gbps). The NME lasts for 3 hours (12:00-15:00 UT) with long scans on the calibrators: J0237+2848, J0319+4130 (3C84) and J0530+1331 J0528+1317 is used as phase-referenced source, for testing purposes, in the last hour. with ftp grabs every other scan at the following times (in UT): 12:10:00 (scan 2, 2 sec, J0237+2848) 12:40:00 (scan 4, 2 sec, J0237+2848) 13:10:00 (scan 6, 2 sec, J0237+2848) 13:40:00 (scan 8, 2 sec, J0319+4130) 14:10:00 (scan 10, 2 sec, J0319+4130) 14:35:00 (scan 16, 2 sec, J0530+1331) 14:58:00 (scan 22, 2 sec, J0530+1331) -- 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 ---------------------------------------------------------------------------------------- --- Mon 3 Mar 2025 Day 62 --- Next scan frequencies: 8319.49 8319.49 8319.49 8319.49 8383.49 8383.49 8383.49 8383.49 8447.49 8447.49 8447.49 8447.49 8511.49 8511.49 8511.49 8511.49 Next BBC frequencies: 219.49 219.49 219.49 219.49 283.49 283.49 283.49 283.49 347.49 347.49 347.49 347.49 411.49 411.49 411.49 411.49 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 J0237+2848 04 34 47 62.7 247.3 1.9 49.9 0 0 12 00 00 12 02 00 =0234+285 04 36 47 62.4 247.9 2.0 50.2 120 31 12 00 01 12 07 00 J0237+2848 04 41 48 61.6 249.4 2.0 50.9 298 31 12 07 00 12 12 00 =0234+285 04 46 49 60.7 250.8 2.1 51.5 300 108 12 07 01 12 17 00 J0237+2848 04 51 50 59.8 252.2 2.2 52.1 298 108 12 17 00 12 27 00 =0234+285 05 01 51 58.1 254.8 2.4 53.1 600 262 12 17 01 12 32 00 J0237+2848 05 06 52 57.2 256.0 2.5 53.6 298 262 12 32 00 12 42 00 =0234+285 05 16 54 55.4 258.3 2.6 54.3 600 415 12 32 01 12 47 00 J0237+2848 05 21 55 54.6 259.5 2.7 54.6 298 415 12 47 00 12 57 00 =0234+285 05 31 56 52.8 261.6 2.9 55.1 600 569 12 47 01 13 02 00 J0237+2848 05 36 57 51.9 262.6 3.0 55.3 298 569 13 02 00 13 12 00 =0234+285 05 46 59 50.1 264.6 3.1 55.6 600 723 13 02 01 13 17 00 J0319+4130 05 51 59 62.4 279.3 2.5 73.3 271 723 13 17 00 13 27 00 =3C84 06 02 01 60.7 280.4 2.7 72.7 600 877 13 17 01 13 32 00 J0319+4130 06 07 02 59.8 281.0 2.8 72.3 298 877 13 32 00 13 42 00 =3C84 06 17 04 58.0 282.1 2.9 71.6 600 1031 13 32 01 13 47 00 J0319+4130 06 22 04 57.1 282.7 3.0 71.3 298 1031 13 47 00 13 57 00 =3C84 06 32 06 55.3 283.8 3.2 70.5 600 1185 13 47 01 14 02 00 J0319+4130 06 37 07 54.4 284.3 3.3 70.1 298 1185 14 02 00 14 12 00 =3C84 06 47 08 52.7 285.4 3.4 69.3 600 1338 14 02 01 14 17 00 J0530+1331 06 52 09 55.5 215.9 1.3 25.9 225 1338 14 17 00 14 19 00 =0528+134 06 54 10 55.3 216.6 1.4 26.5 120 1369 14 17 01 14 19 00 J0528+1317 06 54 10 54.9 217.3 1.4 26.9 -4 1369 No stop 14 22 00 =0525+132 06 57 10 54.5 218.4 1.5 27.6 176 1415 14 19 01 14 22 00 J0530+1331 06 57 10 55.0 217.8 1.4 27.2 -4 1415 No stop 14 24 00 =0528+134 06 59 10 54.8 218.5 1.4 27.7 116 1446 14 22 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 ---------------------------------------------------------------------------------------- --- Mon 3 Mar 2025 Day 62 --- 14 24 00 J0528+1317 06 59 10 54.3 219.2 1.5 28.1 -4 1446 No stop 14 27 00 =0525+132 07 02 11 53.9 220.3 1.5 28.8 176 1492 14 24 01 14 27 00 J0530+1331 07 02 11 54.4 219.6 1.5 28.4 -4 1492 No stop 14 29 00 =0528+134 07 04 11 54.2 220.4 1.5 28.9 116 1523 14 27 01 14 32 00 J0530+1331 07 07 12 53.8 221.5 1.6 29.6 178 1523 14 32 00 14 37 00 =0528+134 07 12 13 53.2 223.2 1.7 30.8 300 1600 14 32 01 14 40 00 J0530+1331 07 15 13 52.8 224.3 1.7 31.4 178 1600 14 40 00 14 43 00 =0528+134 07 18 14 52.4 225.3 1.8 32.0 180 1646 14 40 01 14 43 00 J0528+1317 07 18 14 52.0 225.8 1.8 32.3 -4 1646 No stop 14 46 00 =0525+132 07 21 14 51.6 226.8 1.9 33.0 176 1692 14 43 01 14 46 00 J0530+1331 07 21 14 52.1 226.3 1.8 32.7 -4 1692 No stop 14 48 00 =0528+134 07 23 14 51.8 227.0 1.8 33.1 116 1723 14 46 01 14 48 00 J0528+1317 07 23 14 51.3 227.5 1.9 33.4 -4 1723 No stop 14 51 00 =0525+132 07 26 15 50.9 228.5 1.9 33.9 176 1769 14 48 01 14 51 00 J0530+1331 07 26 15 51.4 228.0 1.9 33.7 -4 1769 No stop 14 53 00 =0528+134 07 28 15 51.1 228.6 1.9 34.1 116 1800 14 51 01 14 56 00 J0530+1331 07 31 16 50.7 229.6 2.0 34.6 178 1800 14 56 00 15 00 00 =0528+134 07 35 16 50.1 230.8 2.0 35.4 240 1862 14 56 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess125.X2048 --- 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: 7 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= 8100.00 8100.00 8100.00 8100.00 8100.00 8100.00 8100.00 8100.00 8100.00 8100.00 8100.00 8100.00 8100.00 8100.00 8100.00 8100.00 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 = A1 C2 A1 C2 A1 C2 A1 C2 A1 C2 A1 C2 A1 C2 A1 C2 The following frequency sets based on these setups were used. Frequency Set: 6 Setup file default. Used with PCAL = off LO sum= 8319.49 8319.49 8319.49 8319.49 8383.49 8383.49 8383.49 8383.49 8447.49 8447.49 8447.49 8447.49 8511.49 8511.49 8511.49 8511.49 BBC fr= 219.49 219.49 219.49 219.49 283.49 283.49 283.49 283.49 347.49 347.49 347.49 347.49 411.49 411.49 411.49 411.49 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: 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) * J0528+1317 05 25 53.606105 * 05 28 42.954893 05 30 08.552696 0.22 0525+132 13 15 29.00336 * 13 17 51.48671 13 19 04.87974 0.53 From catalog imbedded in main SCHED input file. rfc_2024a Petrov and Kovalev, in preparation 36 observations 0234+285 02 34 55.589590 * 02 37 52.405677 02 39 20.680468 0.00 * J0237+2848 28 35 11.40773 * 28 48 08.98999 28 54 44.91835 0.00 J0237+28 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 58420 observations. 3C84 03 16 29.567265 * 03 19 48.160096 03 21 27.570895 1.50 * J0319+4130 41 19 51.91692 * 41 30 42.10404 41 36 18.99656 2.86 0316+413 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0319+41 GSFC 2016a X/S astro solution, 10291 observations. 0528+134 05 28 06.759216 * 05 30 56.416746 05 32 22.182301 0.21 * J0530+1331 13 29 42.28882 * 13 31 55.14948 13 33 03.76449 0.24 J0530+13 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 138236 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 J0528+1317 sess125.X2048 1 2 3 4 5 6 7 8 9 10 11 0.200 9.981 J0237+2848 sess125.X2048 1 2 3 4 5 6 7 8 9 10 11 0.783 43.083 J0319+4130 sess125.X2048 1 2 3 4 5 6 7 8 9 10 11 0.667 36.667 J0530+1331 sess125.X2048 1 2 3 4 5 6 7 8 9 10 11 0.367 18.788 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) J0528+1317 99.3 J0237+2848 63.9 J0319+4130 76.8 J0530+1331 99.8 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