COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: Network Monitoring Experiment Exp. Code: N24L2 Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Gabor Orosz Address: JIVE Oude Hoogeveensedijk 4 Dwingeloo Netherlands Phone: +31 521 596 530 EMAIL: orosz@jive.eu Fax: Phone during observation: +31 521 596 530 Observing mode: vlbi Notes: L-band (18cm) NME and ftp fringe test for Session 2, 2024. 1024 Mbps, L+R, 2-bit sampling, 8 BBC, 32 MHz filters MER: 512 Mbps, L+R, 2-bit sampling, 2 BBC, 64 MHz filters COVER LETTER: This is the schedule for the 18cm NME FTP-FT on May 23, 2024 involving the following 14 antennas: Jb1, Wb1, Ef, Mc, Nt, On85, Tr, Hh, Ir, Cm, Da, Kn, Pi, De. The NME uses a standard 1 Gbps setup (8BBC/32MHz/dual), exc. e-MERLIN stations (512 Mbps, 2BBC/64MHz/dual). The NME lasts for 3 hours (23/05,12-15UT) with scans on calibrators: J0442-0017 (NRAO190) -- https://obs.vlba.nrao.edu/cst/calibsource/3553 J0854+2006 (OJ287) -- https://obs.vlba.nrao.edu/cst/calibsource/6716 with ftp grabs every other scan at the following times (in UT): 12:10:00 (scan 2, 2 sec, J0442-0017) 12:40:00 (scan 4, 2 sec, J0442-0017) 13:10:00 (scan 6, 2 sec, J0442-0017) 13:40:00 (scan 8, 2 sec, J0854+2006) 14:10:00 (scan 10, 2 sec, J0854+2006) 14:40:00 (scan 12, 2 sec, J0854+2006) 14:59:00 (scan 14, 2 sec, J0854+2006) -- Gabor Orosz Mattermost: coms.evlbi.org Schedule for JODRELL1 (Code Jb ) 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 23 May 2024 Day 144 --- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 645.51 645.51 645.51 645.51 581.51 581.51 581.51 581.51 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 12 00 00 J0442-0017 03 57 08 35.6 165.6 -0.8 -8.6 0 0 12 00 00 12 02 00 =NRAO190 03 59 09 35.7 166.2 -0.7 -8.2 120 15 12 00 01 12 07 00 J0442-0017 04 04 09 35.9 167.7 -0.7 -7.3 291 15 12 07 00 12 12 00 =NRAO190 04 09 10 36.0 169.3 -0.6 -6.4 300 54 12 07 01 12 17 00 J0442-0017 04 14 11 36.2 170.8 -0.5 -5.5 291 54 12 17 00 12 27 00 =NRAO190 04 24 13 36.4 173.9 -0.3 -3.6 600 131 12 17 01 12 32 00 J0442-0017 04 29 14 36.4 175.4 -0.2 -2.7 290 131 12 32 00 12 42 00 =NRAO190 04 39 15 36.5 178.6 -0.1 -0.9 600 209 12 32 01 12 47 00 J0854+2006 04 44 16 32.0 99.3 -4.2 -38.9 -32 209 12 47 00 12 57 00 =OJ287 04 54 18 33.5 101.5 -4.0 -38.6 568 286 12 47 01 13 02 00 J0854+2006 04 59 18 34.2 102.6 -3.9 -38.4 291 286 13 02 00 13 12 00 =OJ287 05 09 20 35.7 104.8 -3.8 -38.0 600 363 13 02 01 13 17 00 J0854+2006 05 14 21 36.4 106.0 -3.7 -37.8 291 363 13 17 00 13 27 00 =OJ287 05 24 23 37.8 108.3 -3.5 -37.2 600 441 13 17 01 13 32 00 J0854+2006 05 29 23 38.5 109.5 -3.4 -36.9 291 441 13 32 00 13 42 00 =OJ287 05 39 25 39.9 112.0 -3.3 -36.2 600 518 13 32 01 13 47 00 J0854+2006 05 44 26 40.6 113.2 -3.2 -35.8 291 518 13 47 00 13 57 00 =OJ287 05 54 27 42.0 115.8 -3.0 -35.0 600 595 13 47 01 14 02 00 J0854+2006 05 59 28 42.6 117.1 -2.9 -34.5 291 595 14 02 00 14 12 00 =OJ287 06 09 30 44.0 119.8 -2.8 -33.6 600 672 14 02 01 14 17 00 J0854+2006 06 14 31 44.6 121.1 -2.7 -33.0 291 672 14 17 00 14 27 00 =OJ287 06 24 32 45.9 124.0 -2.5 -31.9 600 750 14 17 01 14 32 00 J0854+2006 06 29 33 46.5 125.4 -2.4 -31.3 291 750 14 32 00 14 42 00 =OJ287 06 39 35 47.7 128.4 -2.3 -29.9 600 827 14 32 01 14 47 00 J0854+2006 06 44 36 48.3 129.9 -2.2 -29.2 291 827 14 47 00 14 52 00 =OJ287 06 49 37 48.8 131.5 -2.1 -28.5 300 866 14 47 01 14 57 00 J0854+2006 06 54 37 49.4 133.1 -2.0 -27.7 290 866 14 57 00 15 00 00 =OJ287 06 57 38 49.7 134.0 -2.0 -27.3 180 889 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: sess224.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: 3 Station: JODRELL1 Total bit rate: 1024 Format: VDIF 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= 2272.00 2272.00 2272.00 2272.00 2272.00 2272.00 2272.00 2272.00 Net SB= L L U U L L U U IF SB = L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= U U L L U U L L IF = A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 1 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= 645.51 645.51 645.51 645.51 581.51 581.51 581.51 581.51 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 1 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) NRAO190 04 40 05.290693 * 04 42 38.660725 04 43 51.890030 0.01 * J0442-0017 -00 23 20.58195 *-00 17 43.42088 -00 14 59.23476 0.03 0440-003 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0442-00 GSFC 2016a X/S astro solution, 4192 observations. OJ287 08 51 57.250615 * 08 54 48.874927 08 56 11.765857 0.00 * J0854+2006 20 17 58.41740 * 20 06 30.64085 20 01 02.19311 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 J0442-0017 sess224.L1024 1 2 3 4 5 6 7 8 9 10 0.450 40.950 J0854+2006 sess224.L1024 1 2 3 4 5 6 7 8 9 10 1.467 133.350 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) J0442-0017 23.2 J0854+2006 68.0 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