COVER INFORMATION Station: HART (Code Hh ) Experiment: Collimation and acceleration of the M84 jet: synergy with EVN+e-MERLIN a Exp. Code: EN016B Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Dhanya G. Nair Address: Department of Astronomy, University of Concepcion Avenida Esteban Iturra s/n Casilla 160-C Concepcion, Chile Phone: 0056-412661646 EMAIL: dhanyagnair01@gmail.com, dhanyanair@astro-udec.cl Fax: Phone during observation: Observing mode: evn Notes: 1.3 cm 2048 Mbps 2048 Mbps, 16x32 MHz, RCP & LCP, 2 bit sampling Schedule for HART (Code Hh ) Page 2 Collimation and acceleration of the M84 jet: synergy with EVN+e-MERLIN a 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 2025 Day 56 --- Next scan frequencies: 22139.49 22139.49 22139.49 22139.49 22203.49 22203.49 22203.49 22203.49 22267.49 22267.49 22267.49 22267.49 22331.49 22331.49 22331.49 22331.49 Next BBC frequencies: 659.49 659.49 659.49 659.49 723.49 723.49 723.49 723.49 787.49 787.49 787.49 787.49 851.49 851.49 851.49 851.49 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 20 30 00 1156+295 08 44 33 17.6 43.8 -3.3 0.0 0 0 20 30 00 20 34 00 --- 08 48 34 18.2 43.2 -3.2 0.0 240 62 20 30 01 20 37 02 M84 08 51 36 25.0 60.2 -3.6 0.0 122 62 20 37 02 20 47 02 --- 09 01 38 27.0 58.5 -3.4 0.0 600 216 20 37 03 20 47 34 M84 09 02 10 27.1 58.4 -3.4 0.0 11 216 20 47 34 20 57 34 --- 09 12 12 29.0 56.7 -3.2 0.0 600 371 20 47 35 20 58 06 M84 09 12 44 29.1 56.6 -3.2 0.0 11 371 20 58 06 21 08 06 --- 09 22 45 31.0 54.8 -3.1 0.0 600 526 20 58 07 21 08 50 M87 09 23 29 30.3 56.1 -3.1 0.0 15 526 21 08 50 21 11 50 --- 09 26 30 30.9 55.6 -3.1 0.0 180 572 21 08 51 21 12 34 M84 09 27 14 31.8 53.9 -3.0 0.0 15 572 21 12 34 21 22 34 --- 09 37 16 33.6 51.9 -2.8 0.0 600 727 21 12 35 21 23 06 M84 09 37 48 33.7 51.8 -2.8 0.0 11 727 21 23 06 21 33 06 --- 09 47 49 35.4 49.8 -2.6 0.0 600 881 21 23 07 21 33 38 M84 09 48 21 35.5 49.6 -2.6 0.0 11 881 21 33 38 21 43 38 --- 09 58 23 37.2 47.5 -2.5 0.0 600 1036 21 33 39 21 44 21 M87 09 59 06 36.7 49.0 -2.6 0.0 14 1036 21 44 21 21 47 21 --- 10 02 07 37.2 48.3 -2.5 0.0 180 1082 21 44 22 21 48 05 M84 10 02 51 37.9 46.4 -2.4 0.0 15 1082 21 48 05 21 58 05 --- 10 12 52 39.5 44.1 -2.2 0.0 600 1237 21 48 06 21 58 37 M84 10 13 25 39.6 43.9 -2.2 0.0 11 1237 21 58 37 22 08 37 --- 10 23 26 41.1 41.4 -2.0 0.0 600 1391 21 58 38 22 09 09 M84 10 23 58 41.2 41.3 -2.0 0.0 11 1391 22 09 09 22 19 09 --- 10 34 00 42.7 38.7 -1.9 0.0 600 1546 22 09 10 Schedule for HART (Code Hh ) Page 3 Collimation and acceleration of the M84 jet: synergy with EVN+e-MERLIN a 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 2025 Day 56 --- ---------- Effelsberg pointing gap ---------- 22 19 53 M87 10 34 44 42.4 40.4 -2.0 0.0 15 1546 22 19 53 22 22 53 --- 10 37 45 42.8 39.6 -1.9 0.0 180 1592 22 19 54 22 23 37 M84 10 38 29 43.3 37.4 -1.8 0.0 15 1592 22 23 37 22 27 37 --- 10 42 29 43.8 36.3 -1.7 0.0 240 1654 22 23 38 22 28 09 M84 10 43 01 43.9 36.2 -1.7 0.0 11 1654 22 28 09 22 38 09 --- 10 53 03 45.2 33.2 -1.6 0.0 600 1809 22 28 10 22 38 41 M84 10 53 35 45.3 33.1 -1.5 0.0 11 1809 22 38 41 22 48 41 --- 11 03 37 46.4 30.0 -1.4 0.0 600 1963 22 38 42 22 49 13 M84 11 04 09 46.5 29.8 -1.4 0.0 11 1963 22 49 13 22 59 13 --- 11 14 11 47.6 26.6 -1.2 0.0 600 2118 22 49 14 22 59 56 M87 11 14 54 47.5 28.6 -1.3 0.0 14 2118 22 59 56 23 02 56 --- 11 17 54 47.8 27.6 -1.2 0.0 180 2164 22 59 57 23 03 40 M84 11 18 38 48.0 25.1 -1.1 0.0 15 2164 23 03 40 23 13 40 --- 11 28 40 48.9 21.7 -1.0 0.0 600 2319 23 03 41 23 14 12 M84 11 29 12 48.9 21.5 -1.0 0.0 11 2319 23 14 12 23 21 22 --- 11 36 23 49.5 19.0 -0.8 0.0 430 2430 23 14 13 23 22 06 M87 11 37 07 49.6 21.0 -0.9 0.0 15 2430 23 22 06 23 25 06 --- 11 40 08 49.8 19.9 -0.9 0.0 180 2476 23 22 07 23 27 00 1156+295 11 42 02 34.8 5.0 -0.3 0.0 53 2476 23 27 00 23 30 00 --- 11 45 03 34.9 4.2 -0.3 0.0 180 2522 23 27 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess125.K2048 --- 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: 4 Station: HART 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= 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 21480.00 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= 22139.49 22139.49 22139.49 22139.49 22203.49 22203.49 22203.49 22203.49 22267.49 22267.49 22267.49 22267.49 22331.49 22331.49 22331.49 22331.49 BBC fr= 659.49 659.49 659.49 659.49 723.49 723.49 723.49 723.49 787.49 787.49 787.49 787.49 851.49 851.49 851.49 851.49 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: 4 9 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) * M84 12 22 31.582023 * 12 25 03.743339 12 26 21.597796 0.00 13 09 49.76860 * 12 53 13.13921 12 44 40.85435 0.00 From catalog imbedded in main SCHED input file. * M87 12 28 17.569282 * 12 30 49.423384 12 32 07.102746 0.00 12 40 01.74886 * 12 23 28.04369 12 14 57.08491 0.00 From catalog imbedded in main SCHED input file. * 1156+295 11 56 57.786213 * 11 59 31.833914 12 00 50.949045 0.00 29 31 25.73872 * 29 14 43.82682 29 06 08.41973 0.00 From catalog imbedded in main SCHED input file. 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 M84 sess125.K2048 1 2 3 4 5 6 7 8 10 13 14 15 2.353 353.978 M87 sess125.K2048 1 2 3 4 5 6 7 8 10 13 14 15 0.250 36.550 1156+295 sess125.K2048 1 2 3 4 5 6 7 8 10 13 14 15 0.117 17.850 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) M84 152.9 M87 151.5 1156+295 151.7 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