COVER INFORMATION Station: ARECIBO (Code Ar ) Experiment: Network Monitoring Experiment Exp. Code: N20L2 Schedule Version: 3.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Olga Bayandina Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31-521-596507 EMAIL: bayandina@jive.eu Fax: Phone during observation: +31-521-596507 Observing mode: Notes: 18cm NME and ftp fringe test for Session 2 2020 (512 Mbps, L+R, 2-bit sampling, 16 MHz filters) v3: includes Pi COVER LETTER: This is the schedule for the 18cm NME and ftp fringe-test on 9th June 2020 involving antennas: Jb2, Wb, Ef, On85, Ur, Hh, Sv, Zc, Bd, Ir, Ar. The NME uses a standard setup with 512 Mbps. The schedule consists of long integrations on calibrators J0121+1149, J0956+2515, and J0927+3902. The following ftp-fringe tests are scheduled throughout the experiment (UT times): 12:15:00 (scan 2, 2 sec, J0121+1149) + Arecibo 12:45:00 (scan 4, 2 sec, J0121+1149) + Arecibo 13:15:00 (scan 6, 2 sec, J0121+1149) + Arecibo 13:45:00 (scan 8, 2 sec, J0956+2515) 14:15:00 (scan 10, 2 sec, J0956+2515) 14:45:00 (scan 12, 2 sec, J0927+3902) Good luck with the session! Olga Bayandina Mattermost: coms.evlbi.org Schedule for ARECIBO (Code Ar ) 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 9 Jun 2020 Day 161 --- Next scan frequencies: 1626.50 1626.50 1642.50 1642.50 1658.50 1658.50 1674.50 1674.50 Next BBC frequencies: 773.50 773.50 757.50 757.50 741.50 741.50 725.50 725.50 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 12 00 00 J0121+1149 00 46 16 79.1 124.8 -0.6 -52.8 0 0 12 00 00 12 04 00 =0119+115 00 50 16 79.9 128.2 -0.5 -49.7 240 15 12 00 01 12 07 00 J0121+1149 00 53 17 80.4 131.0 -0.5 -47.1 170 15 12 07 00 12 17 00 =0119+115 01 03 19 82.1 143.1 -0.3 -35.6 600 54 12 07 01 12 20 00 J0121+1149 01 06 19 82.5 147.7 -0.3 -31.2 169 54 12 20 00 12 32 00 =0119+115 01 18 21 83.5 170.5 -0.1 -9.3 720 100 12 20 01 12 35 00 J0121+1149 01 21 21 83.6 177.0 -0.0 -2.9 168 100 12 35 00 12 47 00 =0119+115 01 33 23 83.1 202.2 0.2 21.5 720 147 12 35 01 12 50 00 J0121+1149 01 36 24 82.8 207.7 0.2 26.8 168 147 12 50 00 13 02 00 =0119+115 01 48 26 81.1 224.9 0.4 43.2 720 193 12 50 01 13 05 00 J0121+1149 01 51 26 80.6 228.2 0.5 46.3 170 193 13 05 00 13 17 00 =0119+115 02 03 28 78.3 238.3 0.7 55.6 720 240 13 05 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess220.L512ar Matching groups in /home/guest/rmc/SCHED/sched11.5/catalogs/freq_RDBE.dat: arlb5c RX=LBW, with lfbf=5, upper 300 MHz CS 15-May-06 Setup group: 1 Station: ARECIBO Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate: 32.000 Number of channels: 8 DBE type: RDBE_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U U U U U IF SB = L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= L L L L L L L L IF = A C A C A C A C The following frequency sets based on these setups were used. Frequency Set: 8 Setup file default. Used with PCAL = off LO sum= 1626.50 1626.50 1642.50 1642.50 1658.50 1658.50 1674.50 1674.50 BBC fr= 773.50 773.50 757.50 757.50 741.50 741.50 725.50 725.50 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 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) 0119+115 01 19 03.080126 * 01 21 41.595043 01 22 44.659337 0.00 * J0121+1149 11 34 09.31522 * 11 49 50.41321 11 56 02.19449 0.01 J0121+11 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 62476 observations. 4C39.25 09 23 55.319216 * 09 27 03.013937 09 28 17.387392 0.31 * J0927+3902 39 15 23.56644 * 39 02 20.85185 38 57 13.58826 0.16 0923+392 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J0927+39 GSFC 2016a X/S astro solution, 250526 observations. OK290 09 53 59.738482 * 09 56 49.875376 09 57 57.579236 0.41 * J0956+2515 25 29 33.58581 * 25 15 16.04991 25 09 35.99177 0.37 0953+254 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J0956+25 GSFC 2016a X/S astro solution, 26975 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 J0121+1149 sess220.L512ar 1 2 3 4 5 6 7 8 1.033 22.167 J0927+3902 sess220.L512ar 1 2 3 4 5 6 7 9 10 0.567 31.167 J0956+2515 sess220.L512ar 1 2 3 4 5 6 7 9 10 0.717 39.298 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) J0121+1149 55.7 J0927+3902 55.9 J0956+2515 64.3 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