COVER INFORMATION Station: URUMQI (Code Ur ) 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 URUMQI (Code Ur ) 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: 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 Next BBC frequencies: 210.49 210.49 210.49 210.49 274.49 274.49 274.49 274.49 338.49 338.49 338.49 338.49 402.49 402.49 402.49 402.49 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 19 49 20 47.7 225.6 1.9 31.7 0 0 12 00 00 12 02 00 =1749+096 19 51 21 47.5 226.2 2.0 32.1 120 31 12 00 01 12 07 00 J1751+0939 19 56 21 46.8 227.8 2.1 33.0 298 31 12 07 00 12 17 00 =1749+096 20 06 23 45.4 230.7 2.2 34.7 600 185 12 07 01 12 22 00 J1751+0939 20 11 24 44.7 232.2 2.3 35.5 298 185 12 22 00 12 32 00 =1749+096 20 21 26 43.2 234.9 2.5 37.1 600 338 12 22 01 12 37 00 J1751+0939 20 26 26 42.5 236.3 2.6 37.8 298 338 12 37 00 12 47 00 =1749+096 20 36 28 41.0 238.9 2.7 39.1 600 492 12 37 01 12 52 00 J1751+0939 20 41 29 40.2 240.1 2.8 39.7 298 492 12 52 00 13 02 00 =1749+096 20 51 30 38.6 242.6 3.0 40.8 600 646 12 52 01 13 07 00 J1751+0939 20 56 31 37.8 243.8 3.1 41.3 298 646 13 07 00 13 17 00 =1749+096 21 06 33 36.1 246.1 3.2 42.3 600 800 13 07 01 13 22 00 J2031+1219 21 11 34 57.8 197.9 0.6 13.2 246 800 13 22 00 13 32 00 =2029+121 21 21 35 57.2 202.3 0.8 16.4 600 954 13 22 01 13 37 00 J2031+1219 21 26 36 56.8 204.5 0.9 17.9 298 954 13 37 00 13 47 00 =2029+121 21 36 38 56.0 208.7 1.1 20.9 600 1108 13 37 01 13 52 00 J2031+1219 21 41 39 55.6 210.7 1.1 22.3 298 1108 13 52 00 13 57 00 =2029+121 21 46 39 55.1 212.7 1.2 23.6 300 1185 13 52 01 Next scan frequencies: 4824.00 4824.00 4824.00 4824.00 4888.00 4888.00 4888.00 4888.00 4952.00 4952.00 4952.00 4952.00 5016.00 5016.00 5016.00 5016.00 Next BBC frequencies: 204.00 204.00 204.00 204.00 268.00 268.00 268.00 268.00 332.00 332.00 332.00 332.00 396.00 396.00 396.00 396.00 14 07 00 J2031+1219 21 56 41 54.1 216.5 1.4 26.2 597 1185 14 07 00 14 17 00 =2029+121 22 06 43 52.9 220.2 1.6 28.6 600 1338 14 07 01 14 24 00 J2031+1219 22 13 44 52.1 222.6 1.7 30.2 418 1338 14 24 00 14 32 00 =2029+121 22 21 45 51.1 225.3 1.8 31.9 480 1462 14 24 01 14 39 00 J2031+1219 22 28 46 50.2 227.6 1.9 33.3 418 1462 14 39 00 14 47 00 =2029+121 22 36 48 49.1 230.1 2.1 34.7 480 1585 14 39 01 Schedule for URUMQI (Code Ur ) 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 21 Oct 2021 Day 294 --- 14 52 00 J2031+1219 22 41 49 48.4 231.6 2.1 35.6 298 1585 14 52 00 15 00 00 =2029+121 22 49 50 47.2 234.0 2.3 36.9 480 1708 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: 13 Station: URUMQI Total bit rate: 2048 Format: MARK5B 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= 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 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 = A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 The following frequency sets based on these setups were used. Frequency Set: 8 Setup file default. Used with PCAL = off LO sum= 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 210.49 210.49 210.49 210.49 274.49 274.49 274.49 274.49 338.49 338.49 338.49 338.49 402.49 402.49 402.49 402.49 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: 8 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 16 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: 31 Station: URUMQI Total bit rate: 2048 Format: MARK5B 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= 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 4620.00 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 = A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 The following frequency sets based on these setups were used. Frequency Set: 29 Setup file default. Used with PCAL = off LO sum= 4824.00 4824.00 4824.00 4824.00 4888.00 4888.00 4888.00 4888.00 4952.00 4952.00 4952.00 4952.00 5016.00 5016.00 5016.00 5016.00 BBC fr= 204.00 204.00 204.00 204.00 268.00 268.00 268.00 268.00 332.00 332.00 332.00 332.00 396.00 396.00 396.00 396.00 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: 29 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 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 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