COVER INFORMATION Station: BADARY (Code Bd ) Experiment: 3.6cm global VLBI observations of Arp220 Exp. Code: GV023 Schedule Version: 2.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Eskil Varenius Address: Jodrell Bank Observatory, The University of Manchester Lower Withington, Macclesfield Cheshire, SK11 9DL UK Phone: +46706755341 EMAIL: eskil.varenius@manchester.ac.uk Fax: Phone during observation: +46706755341 Observing mode: 3.6cm 2Gbps global VLBI (EVN+VLBA) Notes: Phase calibrator: J1532+2344 Fringe finder / pol. cal / bandpass cal: J1516+1932 Schedule for BADARY (Code Bd ) Page 2 3.6cm global VLBI observations of Arp220 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 ---------------------------------------------------------------------------------------- --- Fri 20 Oct 2017 Day 293 --- Next scan frequencies: 8272.00 8272.00 8272.00 8272.00 8336.00 8336.00 8336.00 8336.00 8400.00 8400.00 8400.00 8400.00 8464.00 8464.00 8464.00 8464.00 Next BBC frequencies: 192.00 192.00 192.00 192.00 256.00 256.00 256.00 256.00 320.00 320.00 320.00 320.00 384.00 384.00 384.00 384.00 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 12 00 00 J1516+1932 20 45 30 20.1 636.3 5.5 40.7 0 0 12 00 00 12 03 00 =1514+197 20 48 30 19.6 636.8 5.5 40.7 180 46 12 00 01 12 04 01 J1532+2344 20 49 32 25.1 637.1 5.3 42.1 35 46 12 04 01 12 05 51 =1530+239 20 51 32 24.8 637.4 5.3 42.1 110 74 12 04 02 12 06 17 ARP220 20 51 48 24.9 636.9 5.3 42.0 14 74 12 06 17 12 10 17 --- 20 55 48 24.3 637.7 5.3 42.0 240 136 12 06 18 12 10 53 J1532+2344 20 56 24 24.0 638.3 5.4 42.0 24 136 12 10 53 12 12 43 =1530+239 20 58 24 23.7 638.7 5.4 41.9 110 164 12 10 54 12 13 08 ARP220 20 58 40 23.8 638.2 5.4 41.9 14 164 12 13 08 12 17 08 --- 21 02 41 23.2 638.9 5.4 41.8 240 226 12 13 09 12 17 44 J1532+2344 21 03 17 23.0 639.6 5.5 41.8 24 226 12 17 44 12 19 34 =1530+239 21 05 17 22.7 640.0 5.5 41.7 110 254 12 17 45 12 20 00 ARP220 21 05 33 22.8 639.5 5.5 41.7 14 254 12 20 00 12 24 00 --- 21 09 33 22.2 640.2 5.6 41.6 240 315 12 20 01 12 24 35 J1532+2344 21 10 09 21.9 640.9 5.6 41.6 24 315 12 24 35 12 26 25 =1530+239 21 12 09 21.6 641.3 5.6 41.5 110 344 12 24 36 12 26 51 ARP220 21 12 25 21.7 640.7 5.6 41.5 14 344 12 26 51 12 30 51 --- 21 16 26 21.1 641.5 5.7 41.4 240 405 12 26 52 12 31 27 J1532+2344 21 17 01 20.9 642.2 5.7 41.3 24 405 12 31 27 12 33 17 =1530+239 21 19 02 20.6 642.5 5.8 41.3 110 433 12 31 28 12 33 42 ARP220 21 19 17 20.7 642.0 5.7 41.3 14 433 12 33 42 12 37 42 --- 21 23 18 20.1 642.8 5.8 41.1 240 495 12 33 43 12 38 18 J1532+2344 21 23 54 19.8 643.4 5.8 41.1 24 495 12 38 18 12 40 08 =1530+239 21 25 54 19.5 643.8 5.9 41.0 110 523 12 38 19 12 40 33 ARP220 21 26 10 19.6 643.3 5.8 41.0 14 523 12 40 33 12 44 33 --- 21 30 10 19.0 644.0 5.9 40.9 240 585 12 40 34 Schedule for BADARY (Code Bd ) Page 3 3.6cm global VLBI observations of Arp220 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 ---------------------------------------------------------------------------------------- --- Fri 20 Oct 2017 Day 293 --- 12 45 09 J1532+2344 21 30 46 18.8 644.7 6.0 40.8 24 585 12 45 09 12 46 59 =1530+239 21 32 47 18.5 645.0 6.0 40.7 110 613 12 45 10 12 47 25 ARP220 21 33 02 18.6 644.5 6.0 40.8 14 613 12 47 25 12 51 25 --- 21 37 03 18.0 645.3 6.0 40.6 240 674 12 47 26 12 52 00 J1532+2344 21 37 39 17.8 645.9 6.1 40.5 24 674 12 52 00 12 53 50 =1530+239 21 39 39 17.5 646.3 6.1 40.4 110 703 12 52 01 12 54 16 ARP220 21 39 55 17.6 645.8 6.1 40.5 14 703 12 54 16 12 58 16 --- 21 43 55 17.0 646.5 6.1 40.3 240 764 12 54 17 ---------- BLOCK 1 FINISHED ---------- 12 59 08 J1516+1932 21 44 47 11.1 647.4 6.5 38.8 25 764 12 59 08 13 02 08 =1514+197 21 47 48 10.7 648.0 6.5 38.6 180 810 12 59 09 13 03 05 J1532+2344 21 48 45 16.1 648.0 6.3 40.0 31 810 13 03 05 13 04 55 =1530+239 21 50 45 15.8 648.3 6.3 39.9 110 838 13 03 06 13 05 20 ARP220 21 51 01 15.9 647.8 6.3 40.0 14 838 13 05 20 13 09 20 --- 21 55 02 15.4 648.6 6.3 39.7 240 900 13 05 21 13 09 56 J1532+2344 21 55 37 15.1 649.2 6.4 39.6 24 900 13 09 56 13 11 46 =1530+239 21 57 38 14.8 649.6 6.4 39.5 110 928 13 09 57 13 12 12 ARP220 21 57 53 14.9 649.1 6.4 39.6 14 928 13 12 12 13 16 12 --- 22 01 54 14.3 649.8 6.4 39.4 240 990 13 12 13 13 16 47 J1532+2344 22 02 30 14.1 650.5 6.5 39.3 24 990 13 16 47 13 18 37 =1530+239 22 04 30 13.8 650.8 6.5 39.2 110 1018 13 16 48 13 19 03 ARP220 22 04 46 13.9 650.3 6.5 39.2 14 1018 13 19 03 13 23 03 --- 22 08 46 13.4 651.1 6.6 39.0 240 1079 13 19 04 13 23 39 J1532+2344 22 09 22 13.1 651.7 6.6 38.9 24 1079 13 23 39 13 25 29 =1530+239 22 11 22 12.8 652.1 6.6 38.8 110 1108 13 23 40 13 25 54 ARP220 22 11 38 12.9 651.6 6.6 38.8 14 1108 13 25 54 13 29 54 --- 22 15 39 12.4 652.3 6.7 38.6 240 1169 13 25 55 13 30 30 J1532+2344 22 16 15 12.1 653.0 6.7 38.5 24 1169 13 30 30 13 32 20 =1530+239 22 18 15 11.9 653.4 6.7 38.3 110 1197 13 30 31 Schedule for BADARY (Code Bd ) Page 4 3.6cm global VLBI observations of Arp220 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 ---------------------------------------------------------------------------------------- --- Fri 20 Oct 2017 Day 293 --- 13 32 46 ARP220 22 18 31 12.0 652.9 6.7 38.4 14 1197 13 32 46 13 36 46 --- 22 22 31 11.4 653.6 6.8 38.2 240 1259 13 32 47 13 37 21 J1532+2344 22 23 07 11.2 654.3 6.8 38.0 24 1259 13 37 21 13 39 11 =1530+239 22 25 07 10.9 654.6 6.9 37.9 110 1287 13 37 22 13 39 37 ARP220 22 25 23 11.0 654.1 6.8 38.0 14 1287 13 39 37 13 43 37 --- 22 29 24 10.4 654.9 6.9 37.7 240 1349 13 39 38 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess317.X2048glob Matching groups in /home/guest/rmc/SCHED/sched11.4/catalogs/freq_RDBE.dat: kvzr_x Added by Des Small, 24 February 2012 Setup group: 13 Station: BADARY Total bit rate: 2048 Format: MARK5B Bits per sample: 2 Sample rate: 64.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 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 = A B A B A B A B A B A B A B A B The following frequency sets based on these setups were used. Frequency Set: 8 Setup file default. Used with PCAL = off LO sum= 8272.00 8272.00 8272.00 8272.00 8336.00 8336.00 8336.00 8336.00 8400.00 8400.00 8400.00 8400.00 8464.00 8464.00 8464.00 8464.00 BBC fr= 192.00 192.00 192.00 192.00 256.00 256.00 256.00 256.00 320.00 320.00 320.00 320.00 384.00 384.00 384.00 384.00 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: 8 9 10 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * ARP220 15 32 46.905485 * 15 34 57.250000 15 35 41.600758 0.00 23 40 07.75728 * 23 30 11.33000 23 26 58.91920 0.00 From catalog imbedded in main SCHED input file. Pos. from Batejat. et al 2011 1514+197 15 14 40.985840 * 15 16 56.796162 15 17 43.074973 0.01 * J1516+1932 19 43 10.94252 * 19 32 12.99209 19 28 37.83567 0.02 J1516+19 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 2699 observations. 1530+239 15 30 36.092767 * 15 32 46.345222 15 33 30.652858 0.10 * J1532+2344 23 54 09.32921 * 23 44 05.26804 23 40 50.07377 0.17 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 90 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 ARP220 sess317.X2048glob 1 2 3 4 5 6 7 8 11 13 15 24 6.667 712.929 J1516+1932 sess317.X2048glob 1 2 3 4 5 6 7 8 11 13 15 24 0.650 66.000 J1532+2344 sess317.X2048glob 1 2 3 4 5 6 7 8 11 13 15 24 3.167 334.583 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) ARP220 43.9 J1516+1932 38.2 J1532+2344 43.8 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