COVER INFORMATION Station: HART (Code Hh ) Experiment: 18cm global VLBI observations of Arp220 Exp. Code: GV022A Schedule Version: 5.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Eskil Varenius Address: Department of Earth and Space Sciences, Chalmers University of T Onsala Space Observatory 439 92 Onsala Sweden Phone: +46 31 772 55 45 EMAIL: varenius@chalmers.se Fax: +46(0)31 772 5590 Phone during observation: +46 31 772 55 45 Observing mode: 18cm 2Gbps global VLBI with phased D-array VLA Notes: Phase calibrator : J1532+2344 Fringe finder / pol. cal / bandpass cal : J1516+1932 VLA phase-up calibrator: J1520+2016 (3C318) Schedule for HART (Code Hh ) Page 2 18cm 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 ---------------------------------------------------------------------------------------- --- Sun 26 Feb 2017 Day 57 --- Next scan frequencies: 1584.25 1584.25 1584.25 1584.25 1616.25 1616.25 1616.25 1616.25 1648.25 1648.25 1648.25 1648.25 1680.25 1680.25 1680.25 1680.25 Next BBC frequencies: 74.25 74.25 74.25 74.25 106.25 106.25 106.25 106.25 138.25 138.25 138.25 138.25 170.25 170.25 170.25 170.25 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 03 30 00 J1532+2344 15 45 27 40.4 356.4 0.2 0.0 0 0 03 30 00 03 33 00 =1530+239 15 48 28 40.3 355.5 0.2 0.0 180 23 03 30 01 03 33 25 ARP220 15 48 53 40.6 356.0 0.2 0.0 0 23 03 33 25 03 43 25 --- 15 58 55 40.3 353.0 0.4 0.0 600 100 03 33 26 03 43 51 J1532+2344 15 59 21 40.0 352.3 0.4 0.0 0 100 03 43 51 03 46 51 =1530+239 16 02 21 39.9 351.4 0.5 0.0 180 124 03 43 52 03 47 17 ARP220 16 02 47 40.2 351.9 0.5 0.0 0 124 03 47 17 03 57 17 --- 16 12 48 39.9 348.9 0.6 0.0 600 201 03 47 18 03 57 42 J1532+2344 16 13 14 39.5 348.2 0.7 0.0 0 201 03 57 42 04 00 42 =1530+239 16 16 14 39.4 347.3 0.7 0.0 180 224 03 57 43 04 01 08 ARP220 16 16 40 39.7 347.8 0.7 0.0 0 224 04 01 08 04 11 08 --- 16 26 42 39.1 344.9 0.8 0.0 600 301 04 01 09 04 11 33 J1532+2344 16 27 07 38.8 344.2 0.9 0.0 0 301 04 11 33 04 14 33 =1530+239 16 30 08 38.6 343.4 0.9 0.0 180 325 04 11 34 04 14 59 ARP220 16 30 33 38.9 343.8 0.9 0.0 0 325 04 14 59 04 24 59 --- 16 40 35 38.2 341.0 1.1 0.0 600 402 04 15 00 04 25 52 J1516+1932 16 41 28 40.3 333.8 1.4 0.0 17 402 04 25 52 04 27 52 =1514+197 16 43 29 40.1 333.2 1.4 0.0 120 417 04 25 53 04 28 40 J1532+2344 16 44 17 37.6 339.4 1.2 0.0 12 417 04 28 40 04 31 40 =1530+239 16 47 17 37.3 338.6 1.2 0.0 180 441 04 28 41 04 32 05 ARP220 16 47 43 37.7 339.0 1.2 0.0 0 441 04 32 05 04 42 05 --- 16 57 44 36.8 336.3 1.4 0.0 600 518 04 32 06 04 42 31 J1532+2344 16 58 10 36.4 335.8 1.4 0.0 0 518 04 42 31 04 45 31 =1530+239 17 01 10 36.1 335.0 1.5 0.0 180 541 04 42 32 04 45 56 ARP220 17 01 36 36.5 335.3 1.4 0.0 0 541 04 45 56 04 55 56 --- 17 11 38 35.5 332.7 1.6 0.0 600 618 04 45 57 Schedule for HART (Code Hh ) Page 3 18cm 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 ---------------------------------------------------------------------------------------- --- Sun 26 Feb 2017 Day 57 --- 04 56 22 J1532+2344 17 12 03 35.0 332.2 1.6 0.0 0 618 04 56 22 04 59 22 =1530+239 17 15 04 34.7 331.5 1.7 0.0 180 642 04 56 23 04 59 47 ARP220 17 15 29 35.1 331.8 1.7 0.0 0 642 04 59 47 05 09 47 --- 17 25 31 34.0 329.3 1.8 0.0 600 719 04 59 48 05 10 13 J1532+2344 17 25 57 33.5 328.9 1.9 0.0 0 719 05 10 13 05 13 13 =1530+239 17 28 57 33.1 328.1 1.9 0.0 180 742 05 10 14 05 13 38 ARP220 17 29 23 33.5 328.4 1.9 0.0 0 742 05 13 38 05 23 38 --- 17 39 24 32.3 326.1 2.1 0.0 600 819 05 13 39 05 24 25 J1516+1932 17 40 11 33.0 319.1 2.4 0.0 10 819 05 24 25 05 26 25 =1514+197 17 42 11 32.7 318.7 2.4 0.0 120 835 05 24 26 05 27 10 J1532+2344 17 42 57 31.4 325.0 2.2 0.0 10 835 05 27 10 05 30 10 =1530+239 17 45 57 31.0 324.3 2.2 0.0 180 858 05 27 11 05 30 36 ARP220 17 46 23 31.4 324.5 2.2 0.0 0 858 05 30 36 05 40 36 --- 17 56 24 30.1 322.4 2.3 0.0 600 935 05 30 37 05 41 01 J1532+2344 17 56 50 29.5 322.0 2.4 0.0 0 935 05 41 01 05 44 01 =1530+239 17 59 51 29.1 321.3 2.4 0.0 180 958 05 41 02 05 44 27 ARP220 18 00 16 29.5 321.5 2.4 0.0 0 958 05 44 27 05 54 27 --- 18 10 18 28.1 319.5 2.6 0.0 600 1036 05 44 28 05 54 53 J1532+2344 18 10 44 27.5 319.1 2.6 0.0 0 1036 05 54 53 05 57 53 =1530+239 18 13 44 27.1 318.6 2.7 0.0 180 1059 05 54 54 05 58 18 ARP220 18 14 10 27.5 318.7 2.6 0.0 0 1059 05 58 18 06 08 18 --- 18 24 11 26.0 316.8 2.8 0.0 600 1136 05 58 19 06 08 44 J1532+2344 18 24 37 25.4 316.5 2.9 0.0 0 1136 06 08 44 06 11 44 =1530+239 18 27 37 25.0 315.9 2.9 0.0 180 1159 06 08 45 06 12 09 ARP220 18 28 03 25.4 316.1 2.9 0.0 0 1159 06 12 09 06 22 09 --- 18 38 05 23.8 314.2 3.0 0.0 600 1237 06 12 10 06 22 35 J1532+2344 18 38 30 23.2 314.0 3.1 0.0 0 1237 06 22 35 06 25 35 =1530+239 18 41 31 22.7 313.4 3.1 0.0 180 1260 06 22 36 06 26 00 ARP220 18 41 56 23.2 313.6 3.1 0.0 0 1260 06 26 00 06 36 00 --- 18 51 58 21.5 311.8 3.3 0.0 600 1337 06 26 01 Schedule for HART (Code Hh ) Page 4 18cm 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 ---------------------------------------------------------------------------------------- --- Sun 26 Feb 2017 Day 57 --- 06 36 00 J1516+1932 18 51 58 21.0 305.7 3.6 0.0 -36 1337 No stop 06 37 00 =1514+197 18 52 58 20.8 305.5 3.6 0.0 24 1345 06 36 01 06 37 21 J1516+1932 18 53 19 20.7 305.5 3.6 0.0 1 1345 06 37 14 06 38 21 =1514+197 18 54 20 20.6 305.3 3.6 0.0 60 1354 06 37 15 06 39 12 J1532+2344 18 55 11 20.5 311.1 3.4 0.0 16 1354 06 39 12 06 42 12 =1530+239 18 58 11 20.0 310.6 3.4 0.0 180 1377 06 39 13 06 42 38 ARP220 18 58 37 20.4 310.7 3.4 0.0 0 1377 06 42 38 06 52 38 --- 19 08 38 18.7 309.1 3.5 0.0 600 1454 06 42 39 06 53 04 J1532+2344 19 09 04 18.1 308.9 3.6 0.0 0 1454 06 53 04 06 56 04 =1530+239 19 12 05 17.5 308.4 3.6 0.0 180 1477 06 53 05 06 56 29 ARP220 19 12 30 18.0 308.5 3.6 0.0 0 1477 06 56 29 07 06 29 --- 19 22 32 16.2 307.0 3.8 0.0 600 1555 06 56 30 07 06 55 J1532+2344 19 22 57 15.6 306.8 3.8 0.0 0 1555 07 06 55 07 07 55 =1530+239 19 23 58 15.4 306.7 3.8 0.0 60 1562 07 06 56 07 08 15 J1532+2344 19 24 18 15.4 306.6 3.8 0.0 -1 1562 07 08 15 07 10 15 =1530+239 19 26 18 15.0 306.3 3.9 0.0 119 1578 07 08 16 07 10 40 ARP220 19 26 43 15.5 306.4 3.9 0.0 0 1578 07 10 40 07 20 40 --- 19 36 45 13.6 304.9 4.0 0.0 600 1655 07 10 41 07 21 06 J1532+2344 19 37 11 13.0 304.8 4.1 0.0 0 1655 07 21 06 07 24 06 =1530+239 19 40 11 12.5 304.4 4.1 0.0 180 1678 07 21 07 07 24 31 ARP220 19 40 37 12.9 304.4 4.1 0.0 0 1678 07 24 31 07 34 31 --- 19 50 38 11.0 303.0 4.2 0.0 600 1756 07 24 32 07 35 25 J1516+1932 19 51 33 9.5 297.2 4.6 0.0 18 1756 07 35 25 07 36 25 =1514+197 19 52 33 9.3 297.1 4.6 0.0 60 1763 07 35 26 07 36 45 J1516+1932 19 52 53 9.3 297.1 4.6 0.0 -1 1763 07 36 45 07 37 45 =1514+197 19 53 53 9.1 296.9 4.6 0.0 59 1771 07 36 46 07 38 38 J1532+2344 19 54 46 9.7 302.4 4.4 0.0 17 1771 07 38 38 07 41 38 =1530+239 19 57 46 9.1 302.0 4.4 0.0 180 1794 07 38 39 07 41 59 ARP220 19 58 07 9.6 302.1 4.4 0.0 -4 1794 07 41 59 07 51 59 --- 20 08 09 7.7 300.8 4.5 D 0.0 0 1871 07 42 00 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess117.L2048glob Matching groups in /home/guest/rmc/SCHED/sched11.4/catalogs/freq_RDBE.dat: hh18cm Values confirmed by E-mail Jonathan Quick 20140219 (CR) ****** Only 96.25 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 19 Station: HART Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 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 3 11 3 11 5 13 5 13 7 15 7 15 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 B2 C1 B2 C1 B2 C1 B2 C1 The following frequency sets based on these setups were used. Frequency Set: 11 Setup file default. Used with PCAL = off LO sum= 1584.25 1584.25 1584.25 1584.25 1616.25 1616.25 1616.25 1616.25 1648.25 1648.25 1648.25 1648.25 1680.25 1680.25 1680.25 1680.25 BBC fr= 74.25 74.25 74.25 74.25 106.25 106.25 106.25 106.25 138.25 138.25 138.25 138.25 170.25 170.25 170.25 170.25 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 11 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) * 3C318 15 17 50.628003 * 15 20 05.489700 15 20 51.619460 0.00 20 26 53.10030 * 20 16 05.61100 20 12 19.37298 0.00 From catalog imbedded in main SCHED input file. Pos. from https://science.nrao.edu/facilities/vla/observing/callist#R15 * ARP220 15 32 46.905485 * 15 34 57.250000 15 35 41.749984 0.00 23 40 07.75728 * 23 30 11.33000 23 26 41.88094 0.00 From catalog imbedded in main SCHED input file. Pos. from Batejat. et al 2011 * 3C286 13 28 49.657758 * 13 31 08.288051 13 31 56.137992 0.18 J1331+3030 30 45 58.64059 * 30 30 32.95924 30 25 07.99101 0.17 1328+307 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc J1331+30 GSFC 2015a astro solution, unpublished 225 observations. 1514+197 15 14 40.985840 * 15 16 56.796162 15 17 43.268587 0.01 * J1516+1932 19 43 10.94252 * 19 32 12.99209 19 28 23.33097 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 30.823776 0.10 * J1532+2344 23 54 09.32921 * 23 44 05.26804 23 40 33.11927 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. 'Core' scans are those for which PREEMPT is not 'EXTRA'. The 'DOSCANS' columns are for scans in the range selected by DOSCANS Those are the scans sent to the Vex and other files Source Setup file Frequency sets Core scans (Hours) DOSCANS (duplicates not shown) Scan Baseline Scan Baseline 3C318 sess117.L2048glob 12 18 0.350 0.917 0.433 0.917 ARP220 sess117.L2048glob 1 2 3 4 5 6 7 8 11 12 18 23 8.331 866.845 9.606 914.411 3C286 sess117.L2048glob 18 0.083 0.000 0.083 0.000 J1516+1932 sess117.L2048glob 1 2 3 4 5 6 7 8 11 12 18 23 0.367 34.836 0.433 36.969 J1532+2344 sess117.L2048glob 1 2 3 4 5 6 7 8 11 12 18 23 2.467 256.869 2.917 272.768 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) 3C318 111.1 ARP220 107.8 3C286 134.1 J1516+1932 111.9 J1532+2344 108.3 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