COVER INFORMATION Station: HART (Code Hh ) Experiment: Network Monitoring Experiment Exp. Code: N20K3 Schedule Version: 3.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Dhanya G.Nair Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31-521-596508 EMAIL: nair@jive.eu Fax: Phone during observation: +31-521-596508 Observing mode: Notes: 1.3 cm (K-band) ftp fringe test for session 3/2020 (2048 Mbps, L+R, 2-bit sampling, 16 x 32 MHz filters) Please send the disk pack by express to JIVE, NO PCAL Please DO NOT use the phase cal signal. COVER LETTER: This is the schedule for the 1.3 cm K-band fringe test on 22nd October 2020 involving 21 telescopes: Jb2 Ef Mc On60 T6 Ur Tr Ys Hh Sv Zc Bd Sr Mh Kt Ky Ku CAMBG32M DARNHALL KNOCKIN PICKMERE 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 30 min throughout the experiment: 12:10:00 (scan 1, 2 sec, J1751+0939) 12:40:00 (scan 3, 4 sec, J1751+0939) 13:10:00 (scan 5, 2 sec, J1751+0939) 13:40:00 (scan 7, 4 sec, J1849+6705) !Hart down 14:10:00 (scan 9, 2 sec, J2139+1423) 14:40:00 (scan 11, 4 sec, J2148+0657) Clear skies! Dhanya G.Nair 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 22 Oct 2020 Day 296 --- 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 J1751+0939 15 56 16 44.6 42.3 -1.9 0.0 0 0 12 00 00 12 12 00 =1749+096 16 08 18 46.4 38.9 -1.7 0.0 720 185 12 00 01 12 17 00 J1751+0939 16 13 19 47.0 37.4 -1.7 0.0 279 185 12 17 00 12 27 00 =1749+096 16 23 20 48.4 34.3 -1.5 0.0 600 340 12 17 01 12 32 00 J1751+0939 16 28 21 49.0 32.6 -1.4 0.0 279 340 12 32 00 12 42 00 =1749+096 16 38 23 50.2 29.3 -1.2 0.0 600 495 12 32 01 12 47 00 J1751+0939 16 43 24 50.7 27.5 -1.2 0.0 279 495 12 47 00 12 57 00 =1749+096 16 53 25 51.7 23.9 -1.0 0.0 600 649 12 47 01 13 02 00 J1751+0939 16 58 26 52.1 22.0 -0.9 0.0 279 649 13 02 00 13 12 00 =1749+096 17 08 28 52.9 18.2 -0.7 0.0 600 804 13 02 01 13 47 00 J2139+1423 17 43 33 19.7 62.0 -3.9 0.0 1960 804 13 47 00 13 57 00 =2136+141 17 53 35 21.7 60.5 -3.8 0.0 600 958 13 47 01 14 02 00 J2139+1423 17 58 36 22.7 59.7 -3.7 0.0 279 958 14 02 00 14 12 00 =2136+141 18 08 38 24.6 58.1 -3.5 0.0 600 1113 14 02 01 14 17 00 J2139+1423 18 13 38 25.6 57.3 -3.4 0.0 279 1113 14 17 00 14 27 00 =2136+141 18 23 40 27.5 55.5 -3.3 0.0 600 1268 14 17 01 14 32 00 J2148+0657 18 28 41 31.3 63.0 -3.3 0.0 258 1268 14 32 00 14 42 00 =2145+067 18 38 42 33.3 61.2 -3.2 0.0 600 1422 14 32 01 14 47 00 J2148+0657 18 43 43 34.2 60.3 -3.1 0.0 279 1422 14 47 00 15 00 00 =2145+067 18 56 45 36.8 57.8 -2.9 0.0 780 1623 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: sess320.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: 4 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: 4 9 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) 1749+096 17 49 10.387930 * 17 51 32.818574 17 52 30.306958 0.00 * J1751+0939 09 39 42.82586 * 09 39 00.72841 09 38 54.65645 0.00 J1751+09 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 192391 observations. 1849+670 18 49 16.505878 * 18 49 16.072291 18 49 14.532438 0.01 * J1849+6705 67 02 07.88051 * 67 05 41.68025 67 07 27.11804 0.00 J1849+67 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 31337 observations. 2136+141 21 36 37.412147 * 21 39 01.309269 21 40 00.618613 0.00 * J2139+1423 14 10 00.62101 * 14 23 35.99216 14 29 21.64103 0.00 J2139+14 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 53632 observations. 2145+067 21 45 36.078473 * 21 48 05.458671 21 49 07.038861 0.26 * J2148+0657 06 43 40.90456 * 06 57 38.60416 07 03 31.23764 0.25 J2148+06 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 110505 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 J1751+0939 sess320.K2048 1 2 3 4 5 6 7 8 10 15 18 0.867 182.000 J1849+6705 sess320.K2048 1 2 3 4 5 6 7 8 10 15 18 0.333 60.167 J2139+1423 sess320.K2048 1 2 3 4 5 6 7 8 10 15 18 0.500 105.000 J2148+0657 sess320.K2048 1 2 3 4 5 6 7 8 10 15 18 0.383 80.500 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) J1751+0939 63.8 J1849+6705 94.6 J2139+1423 119.1 J2148+0657 120.4 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