COVER INFORMATION Station: IRBENE (Code Ir ) Experiment: Network Monitoring Experiment Exp. Code: N20C1 Schedule Version: 1.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Olga Bayandina Address: JIVE Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31-521-596508 EMAIL: bayandina@jive.eu Fax: Phone during observation: +31-521-596508 Observing mode: Notes: 6cm (C-band) NME and ftp fringe test for session 1/2020 (512 Mbps, L+R, 2-bit sampling, 8 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 25 Feb 2020 involving 18 antennas. Jb2, Wb, Ef, O8, T6, Ur, Tr, Ys, Hh, Sv, Zc, Bd, Ir, Cm, Da, De, Kn, Pi. The NME uses a standard setup with 512 Mbps. The schedule consists of: - long integrations on calibrators J0237+2848 and J0530+1331 for ftp-fringe tests; Ftp-fringe tests are scheduled every half hour throughout the experiment (UT times): 12:23:00 (scan 2, 2 sec, J0237+2848) 12:53:00 (scan 4, 2 sec, J0237+2848) 13:23:00 (scan 6, 2 sec, J0237+2848) 13:53:00 (scan 8, 2 sec, J0530+1331) 14:23:00 (scan 10, 2 sec, J0530+1331) 14:53:00 (scan 12, 2 sec, J0530+1331) Good luck with the session! Olga Bayandina 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 ---------------------------------------------------------------------------------------- --- Tue 25 Feb 2020 Day 56 --- ---------- N20C1 ---------- Next scan frequencies: 4966.49 4966.49 4966.49 4966.49 4982.49 4982.49 4982.49 4982.49 4998.49 4998.49 4998.49 4998.49 5014.49 5014.49 5014.49 5014.49 Next BBC frequencies: 866.49 866.49 866.49 866.49 882.49 882.49 882.49 882.49 898.49 898.49 898.49 898.49 914.49 914.49 914.49 914.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 12 00 00 J0237+2848 23 46 43 48.7-244.9 -2.9 -33.7 0 0 12 00 00 12 10 00 =0234+285 23 56 45 49.9-242.1 -2.7 -32.8 600 39 12 00 01 12 13 00 J0237+2848 23 59 45 50.2-241.2 -2.7 -32.5 177 39 12 13 00 12 25 00 =0234+285 00 11 47 51.6-237.6 -2.5 -31.2 720 85 12 13 01 12 28 00 J0237+2848 00 14 48 51.9-236.7 -2.4 -30.8 177 85 12 28 00 12 40 00 =0234+285 00 26 50 53.3-233.0 -2.2 -29.3 720 131 12 28 01 12 43 00 J0237+2848 00 29 50 53.6-232.0 -2.2 -28.9 177 131 12 43 00 12 55 00 =0234+285 00 41 52 54.8-228.0 -2.0 -27.1 720 178 12 43 01 12 58 00 J0237+2848 00 44 53 55.1-227.0 -1.9 -26.6 177 178 12 58 00 13 10 00 =0234+285 00 56 55 56.3-222.8 -1.7 -24.6 720 224 12 58 01 13 13 00 J0237+2848 00 59 55 56.5-221.7 -1.7 -24.1 177 224 13 13 00 13 25 00 =0234+285 01 11 57 57.6-217.3 -1.5 -21.8 720 271 13 13 01 13 29 00 J0530+1331 01 15 58 25.2-255.0 -4.3 -32.2 218 271 13 29 00 13 40 00 =0528+134 01 27 00 26.6-252.5 -4.1 -31.8 660 313 13 29 01 13 43 00 J0530+1331 01 30 00 27.0-251.8 -4.0 -31.6 177 313 13 43 00 13 55 00 =0528+134 01 42 02 28.5-249.0 -3.8 -31.0 720 359 13 43 01 13 58 00 J0530+1331 01 45 03 28.9-248.3 -3.8 -30.8 177 359 13 58 00 14 10 00 =0528+134 01 57 05 30.4-245.4 -3.6 -30.1 720 406 13 58 01 14 13 00 J0530+1331 02 00 05 30.8-244.6 -3.5 -29.9 177 406 14 13 00 14 25 00 =0528+134 02 12 07 32.2-241.6 -3.3 -29.1 720 452 14 13 01 14 28 00 J0530+1331 02 15 08 32.6-240.9 -3.3 -28.8 177 452 14 28 00 14 40 00 =0528+134 02 27 09 34.0-237.8 -3.1 -27.8 720 499 14 28 01 14 43 00 J0530+1331 02 30 10 34.3-237.0 -3.0 -27.6 177 499 14 43 00 14 55 00 =0528+134 02 42 12 35.6-233.8 -2.8 -26.5 720 545 14 43 01 Schedule for IRBENE (Code Ir ) 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 ---------------------------------------------------------------------------------------- --- Tue 25 Feb 2020 Day 56 --- 14 58 00 J0530+1331 02 45 12 35.9-233.0 -2.8 -26.2 177 545 14 58 00 15 00 00 =0528+134 02 47 13 36.2-232.5 -2.7 -26.0 120 553 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: sess120.C512 --- 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: 512 Format: VDIF Bits per sample: 2 Sample rate: 16.000 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: 4 Setup file default. Used with PCAL = off LO sum= 4966.49 4966.49 4966.49 4966.49 4982.49 4982.49 4982.49 4982.49 4998.49 4998.49 4998.49 4998.49 5014.49 5014.49 5014.49 5014.49 BBC fr= 866.49 866.49 866.49 866.49 882.49 882.49 882.49 882.49 898.49 898.49 898.49 898.49 914.49 914.49 914.49 914.49 Bandwd= 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 Matching frequency sets: 4 13 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) 0234+285 02 34 55.589590 * 02 37 52.405677 02 39 02.102749 0.00 * J0237+2848 28 35 11.40773 * 28 48 08.98999 28 53 16.94302 0.00 J0237+28 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 58420 observations. 0528+134 05 28 06.759216 * 05 30 56.416746 05 32 04.166514 0.21 * J0530+1331 13 29 42.28882 * 13 31 55.14948 13 32 41.13647 0.24 J0530+13 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 138236 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 sess120.C512 1 2 3 4 5 6 7 8 9 10 14 1.167 178.500 J0530+1331 sess120.C512 1 2 3 4 5 6 7 8 9 10 14 1.217 184.245 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 70.5 J0530+1331 106.5 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