COVER INFORMATION Station: KNOCKIN (Code Kn ) Experiment: Network Monitoring Experiment Exp. Code: N21C3 Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Benito Marcote Address: JIVE Oude Hoogeveensedijk 4 7991PD Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: marcote@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: Notes: 6cm NME and ftp fringe test for Session 3 2021 (2 Gbps, L+R, 2-bit sampling, 32 MHz filters) (4 Gbps via 32 channels (2 VSI outputs) for last hour) Please send the disk pack by express to JIVE COVER LETTER: This is the schedule for the 6cm NME and ftp fringe-test on 21 October 2021 involving the following antennas: Jb2, Wb, Ef, Mc, Nt, On85, Sh, 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 J1751+0939 and J2031+1219 for ftp-fringe tests. The following ftp-fringe tests are scheduled throughout the experiment (UT times): 12:15:00 (scan 2, 2 sec, J1751+0939) 12:45:00 (scan 4, 2 sec, J1751+0939) 13:15:00 (scan 6, 2 sec, J1751+0939) 13:45:00 (scan 8, 2 sec, J2031+1219) shift to 4Gbps mode (10-min gap) 14:15:00 (scan 10, 2 sec, J2031+1219) 14:45:00 (scan 12, 2 sec, J2031+1219) Good luck with the session! Benito Marcote 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 21 Oct 2021 Day 294 --- Next scan frequencies: 4926.49 4926.49 Next BBC frequencies: 737.51 737.51 Next scan bandwidths: 64.00 64.00 12 00 00 J1751+0939 13 48 38 25.0 108.0 -4.1 -35.7 0 0 12 00 00 12 02 00 =1749+096 13 50 39 25.3 108.4 -4.0 -35.6 120 8 12 00 01 12 07 00 J1751+0939 13 55 39 26.0 109.5 -3.9 -35.3 294 8 12 07 00 12 17 00 =1749+096 14 05 41 27.4 111.8 -3.8 -34.7 600 46 12 07 01 12 22 00 J1751+0939 14 10 42 28.1 112.9 -3.7 -34.4 294 46 12 22 00 12 32 00 =1749+096 14 20 43 29.5 115.3 -3.5 -33.7 600 85 12 22 01 12 37 00 J1751+0939 14 25 44 30.2 116.5 -3.4 -33.3 294 85 12 37 00 12 47 00 =1749+096 14 35 46 31.5 118.9 -3.3 -32.5 600 124 12 37 01 12 52 00 J1751+0939 14 40 47 32.2 120.1 -3.2 -32.0 294 124 12 52 00 13 02 00 =1749+096 14 50 48 33.5 122.6 -3.0 -31.1 600 162 12 52 01 13 07 00 J1751+0939 14 55 49 34.1 123.9 -2.9 -30.6 294 162 13 07 00 13 17 00 =1749+096 15 05 51 35.4 126.5 -2.8 -29.5 600 201 13 07 01 13 22 00 J2031+1219 15 10 52 15.6 89.9 -5.4 -38.3 166 201 13 22 00 13 32 00 =2029+121 15 20 53 17.1 91.9 -5.2 -38.2 600 240 13 22 01 13 37 00 J2031+1219 15 25 54 17.8 92.9 -5.1 -38.2 294 240 13 37 00 13 47 00 =2029+121 15 35 56 19.4 94.9 -5.0 -38.1 600 278 13 37 01 13 52 00 J2031+1219 15 40 57 20.1 96.0 -4.9 -38.0 294 278 13 52 00 13 57 00 =2029+121 15 45 57 20.9 97.0 -4.8 -37.9 300 298 13 52 01 Next scan frequencies: 4888.00 4888.00 Next BBC frequencies: 736.00 736.00 14 07 00 J2031+1219 15 55 59 22.4 99.1 -4.6 -37.7 594 298 14 07 00 14 17 00 =2029+121 16 06 01 23.9 101.2 -4.4 -37.4 600 336 14 07 01 14 24 00 J2031+1219 16 13 02 24.9 102.7 -4.3 -37.2 414 336 14 24 00 14 32 00 =2029+121 16 21 03 26.1 104.4 -4.2 -36.8 480 367 14 24 01 14 39 00 J2031+1219 16 28 04 27.1 105.9 -4.1 -36.5 414 367 14 39 00 14 47 00 =2029+121 16 36 06 28.3 107.7 -3.9 -36.1 480 398 14 39 01 14 52 00 J2031+1219 16 41 06 29.0 108.9 -3.9 -35.9 294 398 14 52 00 15 00 00 =2029+121 16 49 08 30.1 110.7 -3.7 -35.4 480 429 14 52 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess321.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: 19 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: 17 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: 17 18 19 20 21 Track assignments are: track1= 1, 2 barrel=roll_off ======== Setup file: sess321.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: 40 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= 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: 38 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: 38 39 40 41 42 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) 1749+096 17 49 10.387930 * 17 51 32.818574 17 52 33.256806 0.00 * J1751+0939 09 39 42.82586 * 09 39 00.72841 09 38 51.03154 0.00 J1751+09 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 192391 observations. 2029+121 20 29 32.681260 * 20 31 54.994267 20 32 56.187174 0.01 * J2031+1219 12 09 28.75299 * 12 19 41.34015 12 24 14.43950 0.02 J2031+12 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 4314 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 sess321.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 0.867 182.000 J2031+1219 sess321.C2048 1 2 3 4 5 6 7 8 9 10 11 12 + 0.417 87.500 sess321.C4096 22 23 24 25 26 27 28 29 30 + 0.567 119.000 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 64.8 J2031+1219 103.8 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