COVER INFORMATION Station: CAMBG32M (Code Cm ) Experiment: Network Monitoring Experiment Exp. Code: N23C2 Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Suma Murthy Address: JIVE Oude Hoogeveensedijk 4 7991PD Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: murthy@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: Notes: 6cm NME and ftp fringe test for Session 2 2023 (4096 Mbps, L+R, 2-bit sampling, 32 MHz filters) Please send the disk pack by express to JIVE v.2 - no DBBC3 testing yet COVER LETTER: This is the schedule for the 6cm NME and ftp fringe-test on 25th May 2023 involving the following antennas: Jb2 Wb1 Ef Mc Nt On85 T6 Ur Tr Ys Hh Ib Km Cm Da De Pi Kn The NME uses a standard setup with 4096 Mbps. The schedule consists of long integrations on calibrator J0804+2006. We shall use J0905+2052 for phase referencing. We will also use a single scan on J0806+4504 for the flux calibration of e-MERLIN stations. The following ftp-fringe tests are scheduled throughout the experiment (UT times): 12:13:00 (scan 2, 2 sec, J0804+2006) 12:35:00 (scan 4, 2 sec, J0804+2006) 13:05:00 (scan 6, 2 sec, J0804+2006) 13:35:00 (scan 10, 2 sec, J0804+2006) 14:05:00 (scan 14, 2 sec, J0804+2006) 14:35:00 (scan 18, 2 sec, J0804+2006) Happy C-inging! Suma Murthy Mattermost: coms.evlbi.org Schedule for CAMBG32M (Code Cm ) 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 25 May 2023 Day 145 --- Next scan frequencies: 4888.00 4888.00 Next BBC frequencies: 736.00 736.00 Next scan bandwidths: 64.00 64.00 12 00 00 J0806+4504 04 11 25 51.3 436.3 -3.9 -57.5 0 0 12 00 00 12 05 00 =0803+452 04 16 26 52.1 437.1 -3.9 -57.7 300 19 12 00 01 12 08 00 J0854+2006 04 19 26 28.4 453.5 -4.6 -40.7 91 19 12 08 00 12 15 00 =OJ287 04 26 28 29.5 454.9 -4.5 -40.6 420 46 12 08 01 12 20 00 J0854+2006 04 31 28 30.2 456.0 -4.4 -40.5 295 46 12 20 00 12 22 00 =OJ287 04 33 29 30.5 456.4 -4.4 -40.4 120 54 12 20 01 12 27 00 J0854+2006 04 38 30 31.3 457.4 -4.3 -40.3 295 54 12 27 00 12 37 00 =OJ287 04 48 31 32.8 459.6 -4.1 -40.1 600 93 12 27 01 12 42 00 J0854+2006 04 53 32 33.6 460.6 -4.0 -39.9 295 93 12 42 00 12 52 00 =OJ287 05 03 34 35.1 462.8 -3.9 -39.5 600 131 12 42 01 12 57 00 J0854+2006 05 08 34 35.8 463.9 -3.8 -39.3 295 131 12 57 00 13 07 00 =OJ287 05 18 36 37.3 466.2 -3.6 -38.8 600 170 12 57 01 13 09 00 J0854+2006 05 20 36 37.6 466.7 -3.6 -38.7 116 170 13 09 00 13 13 00 =OJ287 05 24 37 38.2 467.6 -3.5 -38.5 240 185 13 09 01 13 13 00 J0905+2052 05 24 37 37.2 464.6 -3.7 -39.4 -23 185 No stop 13 16 00 --- 05 27 38 37.7 465.3 -3.6 -39.3 157 197 13 13 01 13 18 00 J0854+2006 05 29 38 38.9 468.8 -3.4 -38.2 96 197 13 18 00 13 22 00 =OJ287 05 33 39 39.5 469.8 -3.4 -37.9 240 213 13 18 01 13 27 00 J0854+2006 05 38 39 40.2 471.0 -3.3 -37.6 295 213 13 27 00 13 37 00 =OJ287 05 48 41 41.6 473.4 -3.1 -36.8 600 251 13 27 01 13 39 00 J0854+2006 05 50 41 41.9 474.0 -3.1 -36.6 116 251 13 39 00 13 43 00 =OJ287 05 54 42 42.5 475.0 -3.0 -36.3 240 267 13 39 01 13 43 00 J0905+2052 05 54 42 41.6 471.7 -3.2 -37.5 -24 267 No stop 13 46 00 --- 05 57 43 42.0 472.5 -3.1 -37.3 156 278 13 43 01 13 48 00 J0854+2006 05 59 43 43.2 476.3 -2.9 -35.8 95 278 13 48 00 13 52 00 =OJ287 06 03 43 43.7 477.3 -2.9 -35.4 240 294 13 48 01 13 57 00 J0854+2006 06 08 44 44.4 478.7 -2.8 -34.9 295 294 13 57 00 14 07 00 =OJ287 06 18 46 45.7 481.4 -2.6 -33.9 600 332 13 57 01 Schedule for CAMBG32M (Code Cm ) 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 ---------------------------------------------------------------------------------------- --- Thu 25 May 2023 Day 145 --- 14 09 00 J0854+2006 06 20 46 46.0 482.0 -2.6 -33.6 115 332 14 09 00 14 13 00 =OJ287 06 24 47 46.5 483.1 -2.5 -33.1 240 348 14 09 01 14 13 00 J0905+2052 06 24 47 45.8 479.6 -2.7 -34.8 -25 348 No stop 14 16 00 --- 06 27 47 46.2 480.4 -2.6 -34.5 155 359 14 13 01 14 18 00 J0854+2006 06 29 48 47.2 484.6 -2.4 -32.5 94 359 14 18 00 14 22 00 =OJ287 06 33 48 47.7 485.7 -2.4 -32.0 240 375 14 18 01 14 27 00 J0854+2006 06 38 49 48.3 487.2 -2.3 -31.3 295 375 14 27 00 14 37 00 =OJ287 06 48 51 49.5 490.3 -2.1 -29.8 600 414 14 27 01 14 42 00 J0854+2006 06 53 52 50.1 491.9 -2.0 -29.1 294 414 14 42 00 14 52 00 =OJ287 07 03 53 51.2 495.2 -1.9 -27.4 600 452 14 42 01 14 54 00 J0905+2052 07 05 54 50.9 491.9 -2.0 -29.3 94 452 14 54 00 14 57 00 --- 07 08 54 51.2 492.8 -2.0 -28.8 180 464 14 54 01 14 57 00 J0854+2006 07 08 54 51.7 496.9 -1.8 -26.5 -27 464 No stop 15 00 00 =OJ287 07 11 55 52.0 497.9 -1.7 -26.0 153 475 14 57 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess223.C4096 --- 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: 13 Station: CAMBG32M 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= 5624.00 5624.00 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: 12 Setup file default. Used with PCAL = off LO sum= 4888.00 4888.00 BBC fr= 736.00 736.00 Bandwd= 64.00 64.00 Matching frequency sets: 12 13 14 15 16 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) * J0905+2052 09 02 22.789418 * 09 05 14.337300 09 06 33.475548 0.00 21 04 13.50391 * 20 52 13.30700 20 46 44.53708 0.00 From catalog imbedded in main SCHED input file. 0803+452 08 03 02.295930 * 08 06 33.472537 08 08 10.411260 0.12 * J0806+4504 45 13 11.29504 * 45 04 32.27265 45 00 42.40919 0.10 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 151 observations. OJ287 08 51 57.250615 * 08 54 48.874927 08 56 07.986733 0.00 * J0854+2006 20 17 58.41740 * 20 06 30.64085 20 01 16.65897 0.00 0851+202 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0854+20 GSFC 2016a X/S astro solution, 270807 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 J0905+2052 sess223.C4096 1 2 3 4 5 6 7 8 9 11 12 17 0.200 24.034 J0806+4504 sess223.C4096 1 2 3 4 5 6 7 8 9 11 12 0.083 10.000 J0854+2006 sess223.C4096 1 2 3 4 5 6 7 8 9 11 12 17 1.767 236.049 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) J0905+2052 68.9 J0806+4504 54.3 J0854+2006 66.7 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