COVER INFORMATION Station: ZELENCHK (Code Zc ) Experiment: Network Monitoring Experiment Exp. Code: N20L1 Schedule Version: 2.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Benito Marcote Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: marcote@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: Notes: 18cm (L-band) NME and ftp fringe test for Session 1 2020 (512 Mbps, L+R, 2-bit sampling, 8 MHz filters) Please send the disk pack by express to JIVE COVER LETTER: This is the schedule for the 18cm NME and ftp fringe-test on 10 March 2020 involving 14 EVN antennas + eMERLIN: Jb1, Wb, Ef, O8, T6, Ur, Tr, Hh, Sv, Zc, Bd, Ir, Sr, Ar, Cm, Da, Kn, Pi, De. The NME uses a standard setup with 512 Mbps. The schedule consists of long integrations on calibrators J0237+2848 and J2139+1423 for ftp-fringe tests. Ftp-fringe tests are scheduled every 20 min throughout the experiment (UTC times): 12:10:00 (scan 2, 2 sec, J0237+2848) 12:30:00 (scan 4, 2 sec, J0237+2848) 12:50:00 (scan 6, 2 sec, J0237+2848) 13:10:00 (scan 8, 2 sec, J0237+2848) 13:30:00 (scan 10, 2 sec, J0237+2848) 13:50:00 (scan 12, 2 sec, J2139+1423) -- Arecibo joins 14:10:00 (scan 14, 2 sec, J2139+1423) 14:30:00 (scan 16, 2 sec, J2139+1423) 14:50:00 (scan 18, 2 sec, J2139+1423) The first five tests will include Asian stations + Hart. The last four tests will include Arecibo. Good luck with the session! Benito Marcote Mattermost: coms.evlbi.org Schedule for ZELENCHK (Code Zc ) 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 ---------------------------------------------------------------------------------------- --- Tue 10 Mar 2020 Day 70 --- Next scan frequencies: 1634.50 1634.50 1634.50 1634.50 1650.50 1650.50 1650.50 1650.50 1666.50 1666.50 1666.50 1666.50 1682.50 1682.50 1682.50 1682.50 Next BBC frequencies: 374.50 374.50 374.50 374.50 390.50 390.50 390.50 390.50 406.50 406.50 406.50 406.50 422.50 422.50 422.50 422.50 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 12 00 00 J0237+2848 02 00 45 73.3 509.7 -0.6 -24.6 0 0 12 00 00 12 05 00 =0234+285 02 05 46 73.7 513.2 -0.6 -21.8 300 19 12 00 01 12 08 00 J0237+2848 02 08 47 73.9 515.4 -0.5 -20.1 171 19 12 08 00 12 12 00 =0234+285 02 12 47 74.2 518.4 -0.4 -17.6 240 35 12 08 01 12 15 00 J0237+2848 02 15 48 74.4 520.8 -0.4 -15.8 171 35 12 15 00 12 22 00 =0234+285 02 22 49 74.8 526.4 -0.3 -11.2 420 62 12 15 01 12 25 00 J0237+2848 02 25 50 74.9 528.9 -0.2 -9.2 171 62 12 25 00 12 32 00 =0234+285 02 32 51 75.0 534.7 -0.1 -4.3 420 88 12 25 01 12 35 00 J0237+2848 02 35 51 75.1 537.3 -0.1 -2.2 171 88 12 35 00 12 42 00 =0234+285 02 42 52 75.1 543.3 0.1 2.7 420 115 12 35 01 12 45 00 J0237+2848 02 45 53 75.0 545.8 0.1 4.8 171 115 12 45 00 12 52 00 =0234+285 02 52 54 74.8 551.7 0.2 9.6 420 142 12 45 01 12 55 00 J0237+2848 02 55 55 74.7 554.2 0.3 11.6 171 142 12 55 00 13 02 00 =0234+285 03 02 56 74.4 559.7 0.4 16.2 420 169 12 55 01 13 05 00 J0237+2848 03 05 56 74.2 562.1 0.4 18.0 171 169 13 05 00 13 12 00 =0234+285 03 12 57 73.6 567.3 0.6 22.2 420 196 13 05 01 13 15 00 J0237+2848 03 15 58 73.4 569.4 0.6 23.9 171 196 13 15 00 13 22 00 =0234+285 03 22 59 72.7 574.1 0.7 27.6 420 223 13 15 01 13 25 00 J0237+2848 03 25 59 72.4 576.1 0.8 29.1 172 223 13 25 00 13 32 00 =0234+285 03 33 01 71.6 580.4 0.9 32.3 420 250 13 25 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess120.L512ar Matching groups in /home/guest/rmc/SCHED/sched11.5/catalogs/freq_RDBE.dat: kvzr_l passed by Alexey Melnikov, Mar2014 Setup group: 3 Station: ZELENCHK Total bit rate: 512 Format: MARK5B Bits per sample: 2 Sample rate: 16.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 1260.00 1260.00 1260.00 1260.00 1260.00 1260.00 1260.00 1260.00 1260.00 1260.00 1260.00 1260.00 1260.00 1260.00 1260.00 1260.00 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 = A B A B A B A B A B A B A B A B The following frequency sets based on these setups were used. Frequency Set: 9 Setup file default. Used with PCAL = off LO sum= 1634.50 1634.50 1634.50 1634.50 1650.50 1650.50 1650.50 1650.50 1666.50 1666.50 1666.50 1666.50 1682.50 1682.50 1682.50 1682.50 BBC fr= 374.50 374.50 374.50 374.50 390.50 390.50 390.50 390.50 406.50 406.50 406.50 406.50 422.50 422.50 422.50 422.50 Bandwd= 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 Matching frequency sets: 9 10 11 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) 0234+285 02 34 55.589590 * 02 37 52.405677 02 39 01.881410 0.00 * J0237+2848 28 35 11.40773 * 28 48 08.98999 28 53 15.67460 0.00 J0237+28 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 58420 observations. 2136+141 21 36 37.412147 * 21 39 01.309269 21 39 57.242469 0.00 * J2139+1423 14 10 00.62101 * 14 23 35.99216 14 28 51.80482 0.00 J2139+14 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 53632 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 J0237+2848 sess120.L512ar 1 2 3 4 5 6 7 8 9 12 13 14 1.083 165.750 J2139+1423 sess120.L512ar 1 2 3 4 7 9 12 13 14 19 0.967 84.808 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) J0237+2848 56.9 J2139+1423 31.8 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