COVER INFORMATION Station: KM_DBBC (Code Kd ) Experiment: Network Monitoring Experiment Exp. Code: N20C3 Schedule Version: 2.00 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 2020 (2 Gbps, L+R, 2-bit sampling, 32 MHz filters) v2: includes a 4Gbps portion at the end COVER LETTER: This is the schedule for the 6cm NME and ftp fringe-test on 29 October 2020 involving the following antennas: Jb2, Wb, 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 J1751+0939 and J2031+1219 for ftp-fringe tests. The following ftp-fringe tests are scheduled throughout the experiment (UT times): 11:15:00 (scan 2, 2 sec, J1751+0939) 11:45:00 (scan 4, 2 sec, J1751+0939) 12:15:00 (scan 6, 2 sec, J1751+0939) 12:45:00 (scan 8, 2 sec, J1751+0939) *** 4Gbps portion *** 13:15:00 (scan 10, 2 sec, J2031+1219) 13:45:00 (scan 12, 2 sec, J2031+1219) Good luck with the session! Benito Marcote Mattermost: coms.evlbi.org Schedule for KM_DBBC (Code Kd ) 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 29 Oct 2020 Day 303 --- 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: 630.49 630.49 630.49 630.49 694.49 694.49 694.49 694.49 758.49 758.49 758.49 758.49 822.49 822.49 822.49 822.49 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 11 00 00 J1751+0939 20 24 08 50.9 253.7 2.5 61.9 0 0 11 00 00 11 02 00 =1749+096 20 26 09 50.4 254.1 2.6 62.1 120 31 11 00 01 11 07 00 J1751+0939 20 31 10 49.3 255.0 2.6 62.6 298 31 11 07 00 11 17 00 =1749+096 20 41 11 47.1 256.6 2.8 63.4 600 185 11 07 01 11 22 00 J1751+0939 20 46 12 46.0 257.4 2.9 63.8 298 185 11 22 00 11 32 00 =1749+096 20 56 14 43.8 259.0 3.1 64.4 600 340 11 22 01 11 37 00 J1751+0939 21 01 14 42.7 259.7 3.1 64.7 298 340 11 37 00 11 47 00 =1749+096 21 11 16 40.4 261.1 3.3 65.2 600 495 11 37 01 11 52 00 J1751+0939 21 16 17 39.3 261.8 3.4 65.5 298 495 11 52 00 12 02 00 =1749+096 21 26 19 37.1 263.1 3.6 65.8 600 649 11 52 01 12 07 00 J1751+0939 21 31 19 35.9 263.7 3.6 66.0 298 649 12 07 00 12 17 00 =1749+096 21 41 21 33.7 264.9 3.8 66.3 600 804 12 07 01 12 22 00 J1751+0939 21 46 22 32.6 265.5 3.9 66.4 298 804 12 22 00 12 32 00 =1749+096 21 56 24 30.3 266.6 4.1 66.6 600 958 12 22 01 12 37 00 J1751+0939 22 01 24 29.2 267.2 4.1 66.6 298 958 12 37 00 12 47 00 =1749+096 22 11 26 26.9 268.3 4.3 66.7 600 1113 12 37 01 12 52 00 J2031+1219 22 16 27 62.5 247.4 1.7 59.0 244 1113 12 52 00 13 02 00 =2029+121 22 26 28 60.4 250.0 1.9 60.7 600 1268 12 52 01 Schedule for KM_DBBC (Code Kd ) 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 29 Oct 2020 Day 303 --- Next scan frequencies: 4632.49 4632.49 4632.49 4632.49 4696.49 4696.49 4696.49 4696.49 4760.49 4760.49 4760.49 4760.49 4824.49 4824.49 4824.49 4824.49 4888.49 4888.49 4888.49 4888.49 4952.49 4952.49 4952.49 4952.49 5016.49 5016.49 5016.49 5016.49 5080.49 5080.49 5080.49 5080.49 Next BBC frequencies: 544.49 544.49 544.49 544.49 608.49 608.49 608.49 608.49 672.49 672.49 672.49 672.49 736.49 736.49 736.49 736.49 800.49 800.49 800.49 800.49 864.49 864.49 864.49 864.49 928.49 928.49 928.49 928.49 992.49 992.49 992.49 992.49 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 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 13 07 00 J2031+1219 22 31 29 59.3 251.2 2.0 61.4 298 1268 13 07 00 13 17 00 =2029+121 22 41 31 57.1 253.4 2.1 62.7 600 1577 13 07 25 13 22 00 J2031+1219 22 46 32 56.1 254.4 2.2 63.3 298 1577 13 22 00 13 32 00 =2029+121 22 56 33 53.9 256.3 2.4 64.3 600 1886 13 22 01 13 37 00 J2031+1219 23 01 34 52.8 257.1 2.5 64.8 298 1886 13 37 00 13 47 00 =2029+121 23 11 36 50.5 258.8 2.6 65.5 600 2195 13 37 01 13 52 00 J2031+1219 23 16 37 49.4 259.6 2.7 65.9 298 2195 13 52 00 14 00 00 =2029+121 23 24 38 47.6 260.8 2.9 66.3 480 2442 13 52 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess320.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: 14 Station: KM_DBBC Total bit rate: 2048 Format: VDIF 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= 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 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 5 1 5 2 6 2 6 3 7 3 7 4 8 4 8 BBC SB= L L U U L L U U L L U U L L U U IF = A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 21 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= 630.49 630.49 630.49 630.49 694.49 694.49 694.49 694.49 758.49 758.49 758.49 758.49 822.49 822.49 822.49 822.49 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: 21 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 barrel=roll_off ======== Setup file: sess320.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: 30 Station: KM_DBBC Total bit rate: 4096 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 32 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 Net SB= L L U U L L U U L L U U L L U U 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 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 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 5 13 5 13 6 14 6 14 7 15 7 15 8 16 8 16 BBC SB= L L U U L L U U L L U U L L U U L L U U L L U U L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 B1 D1 B1 D1 B1 D1 B1 D1 B1 D1 B1 D1 B1 D1 B1 D1 The following frequency sets based on these setups were used. Frequency Set: 26 Setup file default. Used with PCAL = off LO sum= 4632.49 4632.49 4632.49 4632.49 4696.49 4696.49 4696.49 4696.49 4760.49 4760.49 4760.49 4760.49 4824.49 4824.49 4824.49 4824.49 4888.49 4888.49 4888.49 4888.49 4952.49 4952.49 4952.49 4952.49 5016.49 5016.49 5016.49 5016.49 5080.49 5080.49 5080.49 5080.49 BBC fr= 544.49 544.49 544.49 544.49 608.49 608.49 608.49 608.49 672.49 672.49 672.49 672.49 736.49 736.49 736.49 736.49 800.49 800.49 800.49 800.49 864.49 864.49 864.49 864.49 928.49 928.49 928.49 928.49 992.49 992.49 992.49 992.49 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 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: 26 30 35 41 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32 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 30.206006 0.00 * J1751+0939 09 39 42.82586 * 09 39 00.72841 09 38 53.77753 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 53.138831 0.01 * J2031+1219 12 09 28.75299 * 12 19 41.34015 12 24 03.67620 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 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 15 + 1.200 252.000 J2031+1219 sess320.C2048 1 2 3 4 5 6 7 8 9 10 11 15 + 0.167 35.000 sess320.C4096 22 23 24 25 26 27 28 29 31 + 0.633 120.333 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 58.4 J2031+1219 96.7 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