COVER INFORMATION Station: KNOCKIN (Code Kn ) Experiment: Network Monitoring Experiment Exp. Code: N22L1 Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Gabor Orosz Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31 686337748 EMAIL: orosz@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: Notes: L-band (18/21cm) NME and ftp fringe test for Session 1, 2022. 1024 Mbps, L+R, 2-bit sampling, 8 BBC, 32 MHz filters MER: 512 Mbps, L+R, 2-bit sampling, 2 BBC, 64 MHz filters Including 21cm mode in last half hour for FAST COVER LETTER: This is the schedule for the 18cm NME and ftp fringe-test on February 24, 2022 involving 14 EVN antennas + eMERLIN + FAST: Jb1, Wb, Ef, Mc, Nt, O8, T6, Ur, Tr, Hh, Sv, Zc, Bd, Ir, Cm, Da, Kn, Pi, De, Fa. The NME uses a standard setup with 1024 Mbps (512 Mbps for eMERLIN). The schedule has two segments: 12:00-14:15 long scans on J0237+2848 with ftp grabs every other scan (18cm setup); 14:20-15:00 a long scan on J0730+4049 with an ftp grab then alternating short scans on J0730+4049 and J0727+4052 with an ftp grab in scans 17 and 23 (21cm setup). The following ftp-fringe tests are scheduled throughout the experiment (UT times): 12:10:00 (scan 2, 2 sec, J0237+2848, 18cm setup) 12:40:00 (scan 4, 2 sec, J0237+2848, 18cm setup) 13:10:00 (scan 6, 2 sec, J0237+2848, 18cm setup) 13:40:00 (scan 8, 2 sec, J0237+2848, 18cm setup) 14:10:00 (scan 10, 2 sec, J0237+2848, 18cm setup) 14:25:00 (scan 12, 2 sec, J0730+4049, 21cm setup) 14:41:00 (scan 17, 2 sec, J0730+4049, 21cm setup) 14:56:00 (scan 23, 2 sec, J0730+4049, 21cm setup) Thank you for taking part in this NME. With kind regards, Gabor Orosz 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 ---------------------------------------------------------------------------------------- --- Thu 24 Feb 2022 Day 55 --- Next scan frequencies: 1626.49 1626.49 Next BBC frequencies: 645.51 645.51 Next scan bandwidths: 64.00 64.00 12 00 00 J0237+2848 22 05 24 35.4 87.5 -4.6 -43.6 0 0 12 00 00 12 05 00 =0234+285 22 10 25 36.2 88.4 -4.5 -43.7 300 19 12 00 01 12 10 00 J0237+2848 22 15 26 36.9 89.4 -4.4 -43.7 294 19 12 10 00 12 20 00 =0234+285 22 25 27 38.4 91.4 -4.2 -43.7 600 58 12 10 01 12 25 00 J0237+2848 22 30 28 39.2 92.5 -4.1 -43.6 294 58 12 25 00 12 35 00 =0234+285 22 40 30 40.7 94.5 -4.0 -43.5 600 97 12 25 01 12 40 00 J0237+2848 22 45 31 41.5 95.6 -3.9 -43.4 294 97 12 40 00 12 50 00 =0234+285 22 55 32 43.0 97.7 -3.7 -43.2 600 135 12 40 01 12 55 00 J0237+2848 23 00 33 43.7 98.8 -3.6 -43.0 294 135 12 55 00 13 05 00 =0234+285 23 10 35 45.2 101.1 -3.5 -42.7 600 174 12 55 01 13 10 00 J0237+2848 23 15 36 46.0 102.3 -3.4 -42.5 294 174 13 10 00 13 20 00 =0234+285 23 25 37 47.4 104.6 -3.2 -41.9 600 213 13 10 01 13 25 00 J0237+2848 23 30 38 48.2 105.8 -3.1 -41.6 294 213 13 25 00 13 35 00 =0234+285 23 40 40 49.6 108.4 -3.0 -41.0 600 251 13 25 01 13 40 00 J0237+2848 23 45 41 50.3 109.6 -2.9 -40.6 294 251 13 40 00 13 50 00 =0234+285 23 55 42 51.7 112.3 -2.7 -39.7 600 290 13 40 01 13 55 00 J0237+2848 00 00 43 52.4 113.7 -2.6 -39.2 293 290 13 55 00 14 05 00 =0234+285 00 10 45 53.8 116.5 -2.5 -38.2 600 328 13 55 01 14 10 00 J0237+2848 00 15 46 54.5 118.0 -2.4 -37.6 293 328 14 10 00 14 15 00 =0234+285 00 20 46 55.2 119.5 -2.3 -36.9 300 348 14 10 01 Next scan frequencies: 1337.85 1337.85 Next BBC frequencies: 934.15 934.15 14 20 00 J0730+4049 00 25 47 22.9 51.9 -7.1 -39.0 74 348 14 20 00 14 24 00 =0727+409 00 29 48 23.4 52.6 -7.0 -39.4 240 363 14 20 01 14 25 00 J0730+4049 00 30 48 23.5 52.7 -7.0 -39.5 56 363 14 25 00 14 30 00 =0727+409 00 35 49 24.1 53.5 -6.9 -40.0 300 383 14 25 01 14 31 00 J0730+4049 00 36 49 24.2 53.7 -6.9 -40.1 56 383 14 31 00 14 32 00 =0727+409 00 37 49 24.3 53.9 -6.9 -40.2 60 386 14 31 01 Schedule for KNOCKIN (Code Kn ) 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 24 Feb 2022 Day 55 --- 14 33 00 J0727+4052 00 38 49 24.9 54.5 -6.8 -40.6 46 386 14 33 00 14 35 00 =0724+409 00 40 50 25.2 54.8 -6.8 -40.8 120 394 14 33 01 14 36 00 J0730+4049 00 41 50 24.8 54.5 -6.8 -40.6 47 394 14 36 00 14 37 00 =0727+409 00 42 50 25.0 54.7 -6.8 -40.7 60 398 14 36 01 14 38 00 J0727+4052 00 43 50 25.5 55.3 -6.8 -41.1 47 398 14 38 00 14 40 00 =0724+409 00 45 50 25.8 55.6 -6.7 -41.3 120 406 14 38 01 14 41 00 J0730+4049 00 46 51 25.5 55.3 -6.8 -41.0 47 406 14 41 00 14 42 00 =0727+409 00 47 51 25.6 55.5 -6.7 -41.1 60 410 14 41 01 14 43 00 J0727+4052 00 48 51 26.2 56.1 -6.7 -41.6 47 410 14 43 00 14 45 00 =0724+409 00 50 51 26.4 56.4 -6.6 -41.7 120 417 14 43 01 14 46 00 J0730+4049 00 51 51 26.1 56.1 -6.7 -41.5 47 417 14 46 00 14 47 00 =0727+409 00 52 52 26.2 56.2 -6.7 -41.6 60 421 14 46 01 14 48 00 J0727+4052 00 53 52 26.8 56.9 -6.6 -42.0 47 421 14 48 00 14 50 00 =0724+409 00 55 52 27.0 57.2 -6.6 -42.2 120 429 14 48 01 14 51 00 J0730+4049 00 56 52 26.7 56.9 -6.6 -42.0 47 429 14 51 00 14 52 00 =0727+409 00 57 52 26.8 57.0 -6.6 -42.1 60 433 14 51 01 14 53 00 J0727+4052 00 58 53 27.4 57.7 -6.5 -42.5 47 433 14 53 00 14 55 00 =0724+409 01 00 53 27.7 58.0 -6.5 -42.7 120 441 14 53 01 14 56 00 J0730+4049 01 01 53 27.4 57.7 -6.5 -42.4 47 441 14 56 00 14 57 00 =0727+409 01 02 53 27.5 57.8 -6.5 -42.5 60 444 14 56 01 14 58 00 J0727+4052 01 03 53 28.1 58.5 -6.4 -42.9 47 444 14 58 00 15 00 00 =0724+409 01 05 54 28.3 58.8 -6.4 -43.1 120 452 14 58 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess122.L1024 --- 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= 2272.00 2272.00 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: 15 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 BBC fr= 645.51 645.51 Bandwd= 64.00 64.00 Matching frequency sets: 15 16 17 18 19 Track assignments are: track1= 1, 2 barrel=roll_off ======== Setup file: sess122.H1024 --- 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: 38 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= 2272.00 2272.00 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: 33 Setup file default. Used with PCAL = off LO sum= 1337.85 1337.85 BBC fr= 934.15 934.15 Bandwd= 64.00 64.00 Matching frequency sets: 33 34 35 36 37 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) 0234+285 02 34 55.589593 * 02 37 52.405680 02 39 09.238752 0.11 * J0237+2848 28 35 11.40778 * 28 48 08.99003 28 53 52.27119 0.10 From catalog imbedded in main SCHED input file. rfc_2021d Petrov and Kovalev, in preparation 21528 observations 0727+409 07 27 24.091632 * 07 30 51.346591 07 32 23.320556 0.15 * J0730+4049 40 56 10.73890 * 40 49 50.82638 40 47 07.55893 0.12 From catalog imbedded in main SCHED input file. rfc_2021d Petrov and Kovalev, in preparation 894 observations 0724+409 07 24 05.305952 * 07 27 32.941920 07 29 05.068700 0.97 * J0727+4052 40 58 16.62792 * 40 52 10.14373 40 49 32.89930 0.90 From catalog imbedded in main SCHED input file. rfc_2021d Petrov and Kovalev, in preparation 35 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 J0237+2848 sess122.L1024 1 2 3 4 5 6 7 8 9 10 11 14 + 1.500 285.000 J0730+4049 sess122.H1024 21 22 23 24 25 26 27 28 29 + 0.250 43.383 J0727+4052 sess122.H1024 21 22 23 24 25 26 27 28 29 + 0.200 36.100 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) J0237+2848 71.0 J0730+4049 129.6 J0727+4052 129.1 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