COVER INFORMATION Station: IRBENE (Code Ir ) Experiment: Network Monitoring Experiment Exp. Code: N21C1 Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Dhanya Nair Address: JIVE Oude Hoogeveensedijk 4 7991PD Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: nair@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: Notes: 6cm NME and ftp fringe test for Session 1 2021 (2 Gbps, L+R, 2-bit sampling, 32 MHz filters) Please send the disk pack by express to JIVE COVER LETTER: This is the schedule for the 6cm NME and ftp fringe-test on 3rd March 2021 involving the following antennas: Jb2,Wb1,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 J0530+1331 and J2031+1219 for ftp-fringe tests. The following ftp-fringe tests are scheduled throughout the experiment (UT times): 14:15:00 (scan 2, 2 sec, J0530+1331) 14:45:00 (scan 4, 2 sec, J0530+1331) 15:15:00 (scan 6, 2 sec, J0530+1331) 15:45:00 (scan 8, 2 sec, J0530+1331) 16:15:00 (scan 10, 2 sec,J0530+1331) 16:45:00 (scan 12, 2 sec,J0750+1231) Clear Skies! Dhanya Nair Mattermost: coms.evlbi.org Schedule for IRBENE (Code Ir ) 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 ---------------------------------------------------------------------------------------- --- Wed 3 Mar 2021 Day 62 --- 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: 730.49 730.49 730.49 730.49 794.49 794.49 794.49 794.49 858.49 858.49 858.49 858.49 922.49 922.49 922.49 922.49 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 14 00 00 J0530+1331 02 13 42 32.4-241.3 -3.3 -28.9 0 0 14 00 00 14 02 00 =0528+134 02 15 42 32.6-240.8 -3.3 -28.8 120 31 14 00 01 14 07 00 J0530+1331 02 20 43 33.2-239.5 -3.2 -28.4 297 31 14 07 00 14 17 00 =0528+134 02 30 44 34.4-236.9 -3.0 -27.5 600 185 14 07 01 14 22 00 J0530+1331 02 35 45 34.9-235.6 -2.9 -27.1 297 185 14 22 00 14 32 00 =0528+134 02 45 47 36.0-232.9 -2.8 -26.1 600 340 14 22 01 14 37 00 J0530+1331 02 50 48 36.5-231.5 -2.7 -25.6 297 340 14 37 00 14 47 00 =0528+134 03 00 49 37.6-228.8 -2.5 -24.5 600 495 14 37 01 14 52 00 J0530+1331 03 05 50 38.1-227.4 -2.4 -24.0 297 495 14 52 00 15 02 00 =0528+134 03 15 52 39.0-224.5 -2.3 -22.8 600 649 14 52 01 15 07 00 J0530+1331 03 20 53 39.5-223.1 -2.2 -22.1 297 649 15 07 00 15 17 00 =0528+134 03 30 54 40.4-220.1 -2.0 -20.8 600 804 15 07 01 15 22 00 J0530+1331 03 35 55 40.8-218.6 -1.9 -20.1 297 804 15 22 00 15 32 00 =0528+134 03 45 57 41.6-215.5 -1.8 -18.7 600 958 15 22 01 15 37 00 J0530+1331 03 50 57 42.0-214.0 -1.7 -18.0 297 958 15 37 00 15 47 00 =0528+134 04 00 59 42.7-210.8 -1.5 -16.4 600 1113 15 37 01 15 52 00 J0530+1331 04 06 00 43.1-209.2 -1.4 -15.6 297 1113 15 52 00 16 02 00 =0528+134 04 16 02 43.7-206.0 -1.3 -14.0 600 1268 15 52 01 16 07 00 J0530+1331 04 21 02 44.0-204.4 -1.2 -13.2 297 1268 16 07 00 16 17 00 =0528+134 04 31 04 44.5-201.0 -1.0 -11.4 600 1422 16 07 01 16 22 00 J0750+1231 04 36 05 31.7-240.0 -3.3 -28.4 277 1422 16 22 00 16 32 00 =0748+126 04 46 06 32.9-237.5 -3.1 -27.6 600 1577 16 22 01 16 37 00 J0750+1231 04 51 07 33.4-236.2 -3.0 -27.2 297 1577 16 37 00 16 47 00 =0748+126 05 01 09 34.5-233.5 -2.8 -26.2 600 1731 16 37 01 16 52 00 J0750+1231 05 06 10 35.1-232.2 -2.8 -25.7 297 1731 16 52 00 17 00 00 =0748+126 05 14 11 35.9-230.0 -2.6 -24.9 480 1855 16 52 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess121.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: 11 Station: IRBENE 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= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 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 = A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 5 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= 730.49 730.49 730.49 730.49 794.49 794.49 794.49 794.49 858.49 858.49 858.49 858.49 922.49 922.49 922.49 922.49 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: 5 14 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) 0528+134 05 28 06.759216 * 05 30 56.416746 05 32 07.461441 0.21 * J0530+1331 13 29 42.28882 * 13 31 55.14948 13 32 46.55301 0.24 J0530+13 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 138236 observations. 0748+126 07 48 05.060496 * 07 50 52.045735 07 52 02.596363 0.00 * J0750+1231 12 38 45.47754 * 12 31 04.82822 12 27 47.23199 0.00 J0750+12 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 49321 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 J0530+1331 sess121.C2048 1 2 3 4 5 6 7 8 9 10 11 15 + 1.533 291.333 J0750+1231 sess121.C2048 1 2 3 4 5 6 7 8 9 10 11 15 + 0.467 88.667 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) J0530+1331 99.7 J0750+1231 133.7 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