COVER INFORMATION Station: HART (Code Hh ) 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 HART (Code Hh ) 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: 116.49 116.49 116.49 116.49 180.49 180.49 180.49 180.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 12 00 00 J0442-0017 05 57 07 58.9 322.6 1.2 0.0 0 0 12 00 00 12 02 00 =NRAO190 05 59 07 58.6 321.8 1.3 0.0 120 15 12 00 01 12 07 00 J0442-0017 06 04 08 57.9 319.8 1.3 0.0 279 15 12 07 00 12 12 00 =NRAO190 06 09 09 57.1 317.9 1.4 0.0 300 54 12 07 01 12 17 00 J0442-0017 06 14 10 56.4 316.1 1.5 0.0 279 54 12 17 00 12 27 00 =NRAO190 06 24 11 54.8 312.7 1.7 0.0 600 131 12 17 01 12 32 00 J0442-0017 06 29 12 53.9 311.1 1.8 0.0 279 131 12 32 00 12 42 00 =NRAO190 06 39 14 52.2 308.1 1.9 0.0 600 209 12 32 01 12 47 00 J0854+2006 06 44 15 34.0 38.1 -2.2 0.0 148 209 12 47 00 12 57 00 =OJ287 06 54 16 35.4 35.8 -2.0 0.0 600 286 12 47 01 13 02 00 J0854+2006 06 59 17 36.0 34.6 -1.9 0.0 279 286 13 02 00 13 12 00 =OJ287 07 09 19 37.3 32.1 -1.8 0.0 600 363 13 02 01 13 17 00 J0854+2006 07 14 19 37.9 30.8 -1.7 0.0 279 363 13 17 00 13 27 00 =OJ287 07 24 21 39.0 28.1 -1.5 0.0 600 441 13 17 01 13 32 00 J0854+2006 07 29 22 39.5 26.8 -1.4 0.0 279 441 13 32 00 13 42 00 =OJ287 07 39 24 40.5 24.0 -1.3 0.0 600 518 13 32 01 13 47 00 J0854+2006 07 44 24 40.9 22.5 -1.2 0.0 279 518 13 47 00 13 57 00 =OJ287 07 54 26 41.7 19.6 -1.0 0.0 600 595 13 47 01 14 02 00 J0854+2006 07 59 27 42.1 18.1 -0.9 0.0 279 595 14 02 00 14 12 00 =OJ287 08 09 29 42.7 15.0 -0.8 0.0 600 672 14 02 01 14 17 00 J0854+2006 08 14 29 43.0 13.4 -0.7 0.0 279 672 14 17 00 14 27 00 =OJ287 08 24 31 43.5 10.3 -0.5 0.0 600 750 14 17 01 14 32 00 J0854+2006 08 29 32 43.6 8.7 -0.4 0.0 279 750 14 32 00 14 42 00 =OJ287 08 39 33 43.9 5.4 -0.3 0.0 600 827 14 32 01 14 47 00 J0854+2006 08 44 34 44.0 3.8 -0.2 0.0 279 827 14 47 00 14 52 00 =OJ287 08 49 35 44.1 2.2 -0.1 0.0 300 866 14 47 01 14 57 00 J0854+2006 08 54 36 44.1 0.5 -0.0 0.0 279 866 14 57 00 15 00 00 =OJ287 08 57 36 44.1 359.5 0.0 0.0 180 889 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 Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat: hh18cm Values confirmed by E-mail Jonathan Quick 20140219 (CR) ****** Only 122.49 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 5 Station: HART 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= 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 8 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= 116.49 116.49 116.49 116.49 180.49 180.49 180.49 180.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 8 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