COVER INFORMATION Station: IRBENE (Code Ir ) Experiment: Network Monitoring Experiment Exp. Code: N24X2 Schedule Version: 1.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Suma Murthy Address: JIVE Oude Hoogeveensedijk 4 7991PD Dwingeloo The Netherlands Phone: +31 521 596 508 EMAIL: murthy@jive.eu Fax: Phone during observation: +31 521 596 508 Observing mode: Notes: 3.6cm NME and ftp fringe test for Session 2 2024 (256 Mbps, RCP, 2-bit sampling, 16 MHz filters) Please send the disk pack by express to JIVE COVER LETTER: This is the schedule for the 3.6cm NME and ftp fringe-test on 3 June 2024 involving the following antennas: wstrbork, eflsberg, medicina, noto, onsala60, torun, yebes40m, hart, irbene The NME uses a standard setup with 256 Mbps. The schedule consists of long integrations on calibrator J0804+2006. We shall use J0905+2052 for phase referencing. The following ftp-fringe tests are scheduled throughout the experiment (UT times): 12:13:00 (scan 2, 2 sec, J0804+2006) 12:35:00 (scan 4, 2 sec, J0804+2006) 13:05:00 (scan 6, 2 sec, J0804+2006) 13:35:00 (scan 10, 2 sec, J0804+2006) 14:05:00 (scan 14, 2 sec, J0804+2006) 14:35:00 (scan 18, 2 sec, J0804+2006) Good luck with the session! Suma Murthy 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 ---------------------------------------------------------------------------------------- --- Mon 3 Jun 2024 Day 155 --- Next scan frequencies: 8400.00 8416.00 8432.00 8448.00 Next BBC frequencies: 750.00 766.00 782.00 798.00 Next scan bandwidths: 16.00 16.00 16.00 16.00 12 00 00 J0854+2006 06 17 10 42.6-234.7 -2.7 -27.8 0 0 12 00 00 12 05 00 =OJ287 06 22 10 43.1-233.2 -2.6 -27.2 300 10 12 00 01 12 08 00 J0854+2006 06 25 11 43.4-232.4 -2.5 -26.9 177 10 12 08 00 12 15 00 =OJ287 06 32 12 44.2-230.3 -2.4 -26.1 420 23 12 08 01 12 20 00 J0854+2006 06 37 13 44.7-228.9 -2.3 -25.5 297 23 12 20 00 12 22 00 =OJ287 06 39 13 44.9-228.3 -2.3 -25.2 120 27 12 20 01 12 27 00 J0854+2006 06 44 14 45.4-226.7 -2.2 -24.6 297 27 12 27 00 12 37 00 =OJ287 06 54 16 46.3-223.6 -2.0 -23.2 600 46 12 27 01 12 42 00 J0854+2006 06 59 16 46.8-222.1 -1.9 -22.5 297 46 12 42 00 12 52 00 =OJ287 07 09 18 47.7-218.8 -1.8 -21.0 600 66 12 42 01 12 57 00 J0854+2006 07 14 19 48.1-217.2 -1.7 -20.2 297 66 12 57 00 13 07 00 =OJ287 07 24 21 48.9-213.9 -1.5 -18.5 600 85 12 57 01 13 09 00 J0854+2006 07 26 21 49.0-213.2 -1.5 -18.2 117 85 13 09 00 13 13 00 =OJ287 07 30 22 49.3-211.8 -1.4 -17.5 240 93 13 09 01 13 13 00 J0905+2052 07 30 22 49.2-215.7 -1.6 -19.6 -5 93 No stop 13 16 00 --- 07 33 22 49.5-214.7 -1.6 -19.1 175 99 13 13 01 13 18 00 J0854+2006 07 35 22 49.6-210.1 -1.3 -16.6 115 99 13 18 00 13 22 00 =OJ287 07 39 23 49.9-208.7 -1.3 -15.9 240 106 13 18 01 13 27 00 J0854+2006 07 44 24 50.2-206.9 -1.2 -15.0 297 106 13 27 00 13 37 00 =OJ287 07 54 26 50.8-203.3 -1.0 -13.1 600 126 13 27 01 13 39 00 J0854+2006 07 56 26 50.9-202.6 -1.0 -12.7 117 126 13 39 00 13 43 00 =OJ287 08 00 27 51.1-201.1 -0.9 -11.9 240 133 13 39 01 13 43 00 J0905+2052 08 00 27 51.3-205.2 -1.1 -14.1 -5 133 No stop 13 46 00 --- 08 03 27 51.4-204.1 -1.1 -13.5 175 139 13 43 01 13 48 00 J0854+2006 08 05 27 51.3-199.3 -0.8 -10.9 115 139 13 48 00 13 52 00 =OJ287 08 09 28 51.5-197.8 -0.8 -10.0 240 147 13 48 01 13 57 00 J0854+2006 08 14 29 51.7-195.9 -0.7 -9.0 297 147 13 57 00 14 07 00 =OJ287 08 24 30 52.0-192.1 -0.5 -6.9 600 166 13 57 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 ---------------------------------------------------------------------------------------- --- Mon 3 Jun 2024 Day 155 --- 14 09 00 J0854+2006 08 26 31 52.1-191.4 -0.5 -6.5 117 166 14 09 00 14 13 00 =OJ287 08 30 31 52.2-189.9 -0.4 -5.6 240 174 14 09 01 14 13 00 J0905+2052 08 30 31 52.6-194.0 -0.6 -8.0 -5 174 No stop 14 16 00 --- 08 33 32 52.7-192.8 -0.6 -7.3 175 180 14 13 01 14 18 00 J0854+2006 08 35 32 52.3-187.9 -0.3 -4.5 115 180 14 18 00 14 22 00 =OJ287 08 39 33 52.3-186.4 -0.3 -3.7 240 187 14 18 01 14 27 00 J0854+2006 08 44 34 52.4-184.5 -0.2 -2.6 297 187 14 27 00 14 37 00 =OJ287 08 54 35 52.5-180.6 -0.0 -0.4 600 207 14 27 01 14 42 00 J0854+2006 08 59 36 52.5-178.7 0.1 0.8 297 207 14 42 00 14 52 00 =OJ287 09 09 38 52.4-174.8 0.2 3.0 600 226 14 42 01 14 54 00 J0905+2052 09 11 38 53.2-178.0 0.1 1.1 115 226 14 54 00 14 57 00 --- 09 14 39 53.2-176.9 0.1 1.8 180 232 14 54 01 14 57 00 J0854+2006 09 14 39 52.3-172.9 0.3 4.0 -5 232 No stop 15 00 00 =OJ287 09 17 39 52.3-171.7 0.4 4.7 175 238 14 57 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess224.X256R --- 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: 9 Station: IRBENE Total bit rate: 256 Format: VDIF Bits per sample: 2 Sample rate: 32.000 Number of channels: 4 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 7650.00 7650.00 7650.00 7650.00 Net SB= U U U U IF SB = U U U U Pol. = RCP RCP RCP RCP BBC = 1 2 3 4 BBC SB= U U U U IF = A1 A1 A1 A1 The following frequency sets based on these setups were used. Frequency Set: 6 Setup file default. Used with PCAL = off LO sum= 8400.00 8416.00 8432.00 8448.00 BBC fr= 750.00 766.00 782.00 798.00 Bandwd= 16.00 16.00 16.00 16.00 Matching frequency sets: 6 7 9 Track assignments are: track1= 1, 2, 3, 4 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * J0905+2052 09 02 22.789418 * 09 05 14.337300 09 06 37.158761 0.00 21 04 13.50391 * 20 52 13.30700 20 46 29.61845 0.00 From catalog imbedded in main SCHED input file. OJ287 08 51 57.250615 * 08 54 48.874927 08 56 11.675125 0.00 * J0854+2006 20 17 58.41740 * 20 06 30.64085 20 01 02.47517 0.00 0851+202 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0854+20 GSFC 2016a X/S astro solution, 270807 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 J0905+2052 sess224.X256R 1 2 3 4 5 6 8 0.200 6.389 J0854+2006 sess224.X256R 1 2 3 4 5 6 8 1.850 66.311 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) J0905+2052 59.6 J0854+2006 57.4 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