COVER INFORMATION Station: KNOCKIN (Code Kn ) Experiment: Network Monitoring Experiment Exp. Code: N21C1 Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Dhanya Nair Address: JIVE Oude Hoogeveensedijk 4 7991PD Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: nair@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: Notes: 6cm NME and ftp fringe test for Session 1 2021 (2 Gbps, L+R, 2-bit sampling, 32 MHz filters) Please send the disk pack by express to JIVE COVER LETTER: This is the schedule for the 6cm NME and ftp fringe-test on 3rd March 2021 involving the following antennas: Jb2,Wb1,Ef,Mc,On85,T6,Ur,Tr,Ys,Hh,Sv,Zc,Bd,Ir,Km,Cm, Da, De, Pi, Kn. The NME uses a standard setup with 2048 Mbps. The schedule consists of long integrations on calibrators J0530+1331 and J2031+1219 for ftp-fringe tests. The following ftp-fringe tests are scheduled throughout the experiment (UT times): 14:15:00 (scan 2, 2 sec, J0530+1331) 14:45:00 (scan 4, 2 sec, J0530+1331) 15:15:00 (scan 6, 2 sec, J0530+1331) 15:45:00 (scan 8, 2 sec, J0530+1331) 16:15:00 (scan 10, 2 sec,J0530+1331) 16:45:00 (scan 12, 2 sec,J0750+1231) Clear Skies! Dhanya Nair Mattermost: coms.evlbi.org Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Wed 3 Mar 2021 Day 62 --- Next scan frequencies: 4926.49 4926.49 Next BBC frequencies: 737.51 737.51 Next scan bandwidths: 64.00 64.00 14 00 00 J0530+1331 00 34 17 20.1 94.0 -5.0 -38.4 0 0 14 00 00 14 02 00 =0528+134 00 36 17 20.4 94.4 -4.9 -38.3 120 8 14 00 01 14 07 00 J0530+1331 00 41 18 21.2 95.4 -4.8 -38.3 294 8 14 07 00 14 17 00 =0528+134 00 51 20 22.7 97.5 -4.7 -38.1 600 46 14 07 01 14 22 00 J0530+1331 00 56 21 23.4 98.6 -4.6 -38.0 294 46 14 22 00 14 32 00 =0528+134 01 06 22 24.9 100.7 -4.4 -37.7 600 85 14 22 01 14 37 00 J0530+1331 01 11 23 25.7 101.7 -4.3 -37.5 294 85 14 37 00 14 47 00 =0528+134 01 21 25 27.2 103.9 -4.2 -37.1 600 124 14 37 01 14 52 00 J0530+1331 01 26 26 27.9 105.0 -4.1 -36.9 294 124 14 52 00 15 02 00 =0528+134 01 36 27 29.3 107.2 -3.9 -36.5 600 162 14 52 01 15 07 00 J0530+1331 01 41 28 30.1 108.4 -3.8 -36.2 294 162 15 07 00 15 17 00 =0528+134 01 51 30 31.5 110.7 -3.7 -35.6 600 201 15 07 01 15 22 00 J0530+1331 01 56 31 32.2 111.8 -3.6 -35.3 294 201 15 22 00 15 32 00 =0528+134 02 06 32 33.6 114.2 -3.4 -34.6 600 240 15 22 01 15 37 00 J0530+1331 02 11 33 34.3 115.4 -3.3 -34.2 294 240 15 37 00 15 47 00 =0528+134 02 21 35 35.6 117.9 -3.2 -33.4 600 278 15 37 01 15 52 00 J0530+1331 02 26 35 36.3 119.1 -3.1 -32.9 294 278 15 52 00 16 02 00 =0528+134 02 36 37 37.6 121.7 -2.9 -31.9 600 317 15 52 01 16 07 00 J0530+1331 02 41 38 38.3 123.0 -2.8 -31.4 294 317 16 07 00 16 17 00 =0528+134 02 51 40 39.5 125.7 -2.7 -30.3 600 356 16 07 01 16 22 00 J0750+1231 02 56 40 19.6 95.2 -4.9 -38.1 184 356 16 22 00 16 32 00 =0748+126 03 06 42 21.2 97.3 -4.8 -37.9 600 394 16 22 01 16 37 00 J0750+1231 03 11 43 21.9 98.3 -4.7 -37.8 294 394 16 37 00 16 47 00 =0748+126 03 21 44 23.4 100.4 -4.5 -37.5 600 433 16 37 01 16 52 00 J0750+1231 03 26 45 24.1 101.5 -4.4 -37.4 294 433 16 52 00 17 00 00 =0748+126 03 34 47 25.3 103.2 -4.3 -37.1 480 464 16 52 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess121.C2048 --- 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: 18 Station: KNOCKIN Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate:128.000 Number of channels: 2 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 5664.00 5664.00 Net SB= U U IF SB = L L Pol. = RCP LCP BBC = 1 9 BBC SB= L L IF = A1 B1 The following frequency sets based on these setups were used. Frequency Set: 16 Setup file default. Used with PCAL = off LO sum= 4926.49 4926.49 BBC fr= 737.51 737.51 Bandwd= 64.00 64.00 Matching frequency sets: 16 17 18 19 20 Track assignments are: track1= 1, 2 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) 0528+134 05 28 06.759216 * 05 30 56.416746 05 32 07.461441 0.21 * J0530+1331 13 29 42.28882 * 13 31 55.14948 13 32 46.55301 0.24 J0530+13 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 138236 observations. 0748+126 07 48 05.060496 * 07 50 52.045735 07 52 02.596363 0.00 * J0750+1231 12 38 45.47754 * 12 31 04.82822 12 27 47.23199 0.00 J0750+12 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 49321 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 J0530+1331 sess121.C2048 1 2 3 4 5 6 7 8 9 10 11 15 + 1.533 291.333 J0750+1231 sess121.C2048 1 2 3 4 5 6 7 8 9 10 11 15 + 0.467 88.667 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) J0530+1331 99.7 J0750+1231 133.7 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