COVER INFORMATION Station: HART (Code Hh ) Experiment: Network Monitoring Experiment Exp. Code: N21K2 Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Olga Bayandina Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31-521-596508 EMAIL: bayandina@jive.eu Fax: Phone during observation: +31-521-596508 Observing mode: Notes: 1.3 cm (K-band) ftp fringe test for session 2/2021 2048 Mbps, L+R, 2-bit sampling, 16x32 MHz filters Please DO NOT use the phase cal signal. COVER LETTER: This is the schedule for the 1.3 cm K-band fringe test on 7th June 2021 involving 18 telescopes: Jb2 Ef Mc Nt On60 T6 Ur Tr Ys Hh Sv Zc Bd Sr Mh Kt Ky Ku With 2/4 sec integration time The FTP-NME uses a standard setup at 2048 Mbps: The schedule consists of long integrations on strong calibrators: Ftp-fringe tests are scheduled every 20 min throughout the experiment: 12:18:00 J0854+2006 (scan 02, 2 sec) 12:38:00 J0854+2006 (scan 04, 4 sec) 12:58:00 J0854+2006 (scan 06, 2 sec) 13:18:00 J0854+2006 (scan 08, 4 sec) 13:38:00 J1058+0133 (scan 10, 2 sec) 13:58:00 J1058+0133 (scan 12, 4 sec) 14:18:00 J1058+0133 (scan 14, 2 sec) 14:38:00 J1159+2914 (scan 16, 4 sec) 14:58:00 J1159+2914 (scan 18, 2 sec) Clear skies! Olga Bayandina 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 ---------------------------------------------------------------------------------------- --- Mon 7 Jun 2021 Day 158 --- Next scan frequencies: 22139.49 22139.49 22139.49 22139.49 22203.49 22203.49 22203.49 22203.49 22267.49 22267.49 22267.49 22267.49 22331.49 22331.49 22331.49 22331.49 Next BBC frequencies: 659.49 659.49 659.49 659.49 723.49 723.49 723.49 723.49 787.49 787.49 787.49 787.49 851.49 851.49 851.49 851.49 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 J0854+2006 06 55 10 35.5 35.5 -2.0 0.0 0 0 12 00 00 12 05 00 =OJ287 07 00 11 36.2 34.3 -1.9 0.0 300 77 12 00 01 12 07 00 J0854+2006 07 02 12 36.4 33.8 -1.9 0.0 99 77 12 07 00 12 20 00 =OJ287 07 15 14 38.0 30.5 -1.7 0.0 780 278 12 07 01 12 22 45 J0854+2006 07 17 59 38.3 29.8 -1.6 0.0 144 278 12 22 45 12 25 00 =OJ287 07 20 15 38.5 29.2 -1.6 0.0 135 313 12 22 46 12 27 00 J0854+2006 07 22 15 38.8 28.6 -1.6 0.0 99 313 12 27 00 12 40 00 =OJ287 07 35 17 40.1 25.1 -1.3 0.0 780 514 12 27 01 12 42 45 J0854+2006 07 38 02 40.3 24.3 -1.3 0.0 144 514 12 42 45 12 45 00 =OJ287 07 40 18 40.5 23.6 -1.3 0.0 135 549 12 42 46 12 47 00 J0854+2006 07 42 18 40.7 23.1 -1.2 0.0 99 549 12 47 00 13 00 00 =OJ287 07 55 20 41.8 19.2 -1.0 0.0 780 750 12 47 01 13 02 00 J0854+2006 07 57 21 41.9 18.6 -1.0 0.0 99 750 13 02 00 13 05 00 =OJ287 08 00 21 42.1 17.7 -0.9 0.0 180 796 13 02 01 13 07 00 J0854+2006 08 02 21 42.3 17.1 -0.9 0.0 99 796 13 07 00 13 20 00 =OJ287 08 15 24 43.0 13.1 -0.7 0.0 780 997 13 07 01 13 23 00 J1058+0133 08 18 24 42.4 61.2 -2.7 0.0 92 997 13 23 00 13 25 00 =1055+018 08 20 24 42.8 60.8 -2.7 0.0 120 1028 13 23 01 13 27 00 J1058+0133 08 22 25 43.2 60.3 -2.6 0.0 99 1028 13 27 00 13 40 00 =1055+018 08 35 27 45.7 57.4 -2.4 0.0 780 1229 13 27 01 13 42 00 J1058+0133 08 37 27 46.1 56.9 -2.4 0.0 99 1229 13 42 00 13 45 00 =1055+018 08 40 28 46.7 56.2 -2.3 0.0 180 1275 13 42 01 13 47 00 J1058+0133 08 42 28 47.1 55.7 -2.3 0.0 99 1275 13 47 00 14 00 00 =1055+018 08 55 30 49.4 52.4 -2.1 0.0 780 1476 13 47 01 14 02 00 J1058+0133 08 57 31 49.8 51.8 -2.0 0.0 99 1476 14 02 00 14 05 00 =1055+018 09 00 31 50.3 51.0 -2.0 0.0 180 1523 14 02 01 Schedule for HART (Code Hh ) 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 7 Jun 2021 Day 158 --- 14 07 00 J1058+0133 09 02 31 50.7 50.4 -2.0 0.0 99 1523 14 07 00 14 20 00 =1055+018 09 15 33 52.9 46.6 -1.7 0.0 780 1724 14 07 01 14 23 00 J1159+2914 09 18 34 22.6 37.9 -2.7 0.0 98 1724 14 23 00 14 25 00 =1156+295 09 20 34 22.9 37.6 -2.7 0.0 120 1755 14 23 01 14 27 00 J1159+2914 09 22 35 23.2 37.2 -2.6 0.0 99 1755 14 27 00 14 40 00 =1156+295 09 35 37 24.9 34.7 -2.4 0.0 780 1955 14 27 01 14 42 00 J1159+2914 09 37 37 25.2 34.3 -2.4 0.0 99 1955 14 42 00 14 45 00 =1156+295 09 40 38 25.5 33.7 -2.3 0.0 180 2002 14 42 01 14 47 00 J1159+2914 09 42 38 25.8 33.3 -2.3 0.0 99 2002 14 47 00 15 00 00 =1156+295 09 55 40 27.3 30.7 -2.1 0.0 780 2203 14 47 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess221.K2048 --- 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: HART Total bit rate: 2048 Format: VDIF 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= 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 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 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 5 Setup file default. Used with PCAL = off LO sum= 22139.49 22139.49 22139.49 22139.49 22203.49 22203.49 22203.49 22203.49 22267.49 22267.49 22267.49 22267.49 22331.49 22331.49 22331.49 22331.49 BBC fr= 659.49 659.49 659.49 659.49 723.49 723.49 723.49 723.49 787.49 787.49 787.49 787.49 851.49 851.49 851.49 851.49 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: 5 10 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) OJ287 08 51 57.250615 * 08 54 48.874927 08 56 00.430136 0.00 * J0854+2006 20 17 58.41740 * 20 06 30.64085 20 01 43.56709 0.00 0851+202 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0854+20 GSFC 2016a X/S astro solution, 270807 observations. 1055+018 10 55 55.313730 * 10 58 29.605208 10 59 34.615738 0.01 * J1058+0133 01 50 03.53722 * 01 33 58.82372 01 27 10.19095 0.01 J1058+01 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 8263 observations. 1156+295 11 56 57.786211 * 11 59 31.833912 12 00 37.134831 0.00 * J1159+2914 29 31 25.73880 * 29 14 43.82690 29 07 48.90660 0.00 J1159+29 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 78215 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 J0854+2006 sess221.K2048 1 2 3 4 5 6 7 8 9 11 14 16 1.075 164.475 J1058+0133 sess221.K2048 1 2 3 4 5 6 7 8 9 11 14 16 0.783 119.850 J1159+2914 sess221.K2048 1 2 3 4 5 6 7 8 9 11 14 16 0.517 79.050 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) J0854+2006 53.8 J1058+0133 88.5 J1159+2914 90.5 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