COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: BW083B / Central component of 0957+561 / Winn et al. Exp. Code: BW083B Schedule Version: 1.00 Processed by SCHED version: 6.02 July 2005 PI: Joshua N. Winn Address: Harvard-Smithsonian Center for Astrophysics 60 Garden St. MS-51 Cambridge, MA 02138 Phone: +1-617-384-9663 (w) / +1-617-666-2341 (h) EMAIL: jwinn@cfa.harvard.edu Fax: +1-617-495-7093 Phone during observation: +1-617-384-9663 (w) / +1-617-666-2341 (h) Observing mode: Standard 21cm band, 256-8-2 Notes: 256 Mbps has been approved for BW083 fringe finder: J0927+3902 Schedule for VLBA_LA (Code La ) Page 2 BW083B / Central component of 0957+561 / Winn et al. UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Dec 2005 Day 364 --- Next scan frequencies: 1400.49 1400.49 1408.49 1408.49 1416.49 1416.49 1424.49 1424.49 Next BBC frequencies: 999.51 999.51 991.51 991.51 983.51 983.51 975.51 975.51 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 08 00 00 J1035+5628 07 30 28 52.9 41.4 -3.1 -103.8 0 1 1 0 Stopped 08 11 00 =1031+567 07 41 30 54.3 40.7 -2.9 -106.7 660 S 1 0 08 11 00 J0929+5013 07 41 30 65.7 45.1 -1.8 -116.1 -29 1 1 0 08 11 00 08 13 00 =0925+504 07 43 31 66.0 44.8 -1.8 -116.8 91 F 1 0 08 11 18 08 13 00 GL0957 07 43 31 59.2 38.4 -2.3 -116.0 -20 1 1 0 08 13 00 08 26 00 --- 07 56 33 60.8 36.7 -2.1 -120.2 760 F 1 0 08 13 00 08 26 00 J0929+5013 07 56 33 67.8 42.2 -1.6 -121.7 -20 1 1 0 08 26 00 08 28 00 =0925+504 07 58 33 68.1 41.7 -1.5 -122.5 100 F 1 0 08 26 00 08 28 00 GL0957 07 58 33 61.0 36.4 -2.1 -120.9 -20 1 1 0 08 28 00 08 41 00 --- 08 11 35 62.6 34.3 -1.8 -125.5 760 F 1 0 08 28 00 08 41 00 J0929+5013 08 11 35 69.8 38.3 -1.3 -128.2 -21 1 1 0 08 41 00 08 43 00 =0925+504 08 13 35 70.1 37.7 -1.3 -129.1 99 F 1 0 08 41 00 08 43 00 J1035+5628 08 13 35 58.5 37.8 -2.4 -115.8 -29 1 1 0 Stopped 08 46 00 =1031+567 08 16 36 58.8 37.5 -2.3 -116.7 151 S 1 0 08 46 00 J0929+5013 08 16 36 70.4 36.8 -1.2 -130.5 -29 1 1 0 08 46 00 08 48 00 =0925+504 08 18 36 70.7 36.2 -1.2 -131.5 91 F 1 0 08 46 18 08 48 00 GL0957 08 18 36 63.4 33.0 -1.7 -128.1 -21 1 1 0 08 48 00 09 01 00 --- 08 31 38 64.7 30.3 -1.5 -133.2 759 F 1 0 08 48 00 09 01 00 J0929+5013 08 31 38 72.2 31.6 -1.0 -138.4 -21 1 1 0 09 01 00 09 03 00 =0925+504 08 33 39 72.4 30.8 -0.9 -139.6 99 F 1 0 09 01 00 09 03 00 GL0957 08 33 39 64.9 29.8 -1.5 -134.0 -21 1 1 0 09 03 00 09 16 00 --- 08 46 41 66.2 26.6 -1.3 -139.7 759 F 1 0 09 03 00 09 16 00 J0929+5013 08 46 41 73.6 25.0 -0.7 -147.6 -21 1 1 0 09 16 00 09 18 00 =0925+504 08 48 41 73.8 24.1 -0.7 -148.9 99 F 1 0 09 16 00 Schedule for VLBA_LA (Code La ) Page 3 BW083B / Central component of 0957+561 / Winn et al. UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Dec 2005 Day 364 --- 09 18 00 J0927+3902 08 48 41 81.7 64.3 -0.6 -109.8 -33 1 1 0 09 18 00 09 25 00 =0923+392 08 55 42 82.9 60.5 -0.5 -114.7 387 F 1 0 09 18 00 09 25 00 J1035+5628 08 55 42 63.3 31.3 -1.7 -130.3 -45 1 1 0 Stopped 09 35 00 =1031+567 09 05 44 64.4 29.2 -1.5 -134.2 555 S 1 0 09 35 00 J0929+5013 09 05 44 74.9 14.9 -0.4 -161.0 -27 1 1 0 09 35 00 09 37 00 =0925+504 09 07 44 75.0 13.7 -0.4 -162.5 93 F 1 0 09 35 18 09 37 00 GL0957 09 07 44 67.9 20.4 -0.9 -149.7 -20 1 1 0 09 37 00 09 50 00 --- 09 20 47 68.7 16.0 -0.7 -156.5 760 F 1 0 09 37 00 09 50 00 J0929+5013 09 20 47 75.5 5.7 -0.1 -172.8 -20 1 1 0 09 50 00 09 52 00 =0925+504 09 22 47 75.5 4.4 -0.1 -174.4 100 F 1 0 09 50 00 09 52 00 GL0957 09 22 47 68.8 15.3 -0.7 -157.6 -19 1 1 0 09 52 00 10 05 00 --- 09 35 49 69.4 10.4 -0.4 -164.9 761 F 1 0 09 52 00 10 05 00 J0929+5013 09 35 49 75.5 -3.9 0.1 175.0 -18 1 1 0 10 05 00 10 07 00 =0925+504 09 37 49 75.5 -5.2 0.1 173.4 102 F 1 0 10 05 00 10 07 00 J1035+5628 09 37 49 67.1 20.8 -1.0 -148.6 -23 1 1 0 Stopped 10 10 00 =1031+567 09 40 50 67.4 19.8 -0.9 -150.1 157 S 1 0 10 10 00 J0929+5013 09 40 50 75.4 -7.1 0.2 171.0 -24 1 1 0 10 10 00 10 12 00 =0925+504 09 42 50 75.4 -8.4 0.2 169.4 96 F 1 0 10 10 18 10 12 00 GL0957 09 42 50 69.7 7.7 -0.3 -168.9 -17 1 1 0 10 12 00 10 25 00 --- 09 55 52 69.9 2.4 -0.1 -176.5 763 F 1 0 10 12 00 10 25 00 J0929+5013 09 55 52 74.8 -16.2 0.4 159.3 -18 1 1 0 10 25 00 10 27 00 =0925+504 09 57 53 74.7 -17.3 0.5 157.8 102 F 1 0 10 25 00 10 27 00 GL0957 09 57 53 69.9 1.6 -0.1 -177.7 -19 1 1 0 10 27 00 10 40 00 --- 10 10 55 69.8 -3.7 0.2 174.6 761 F 1 0 10 27 00 10 40 00 J0929+5013 10 10 55 73.8 -24.2 0.7 148.7 -20 1 1 0 10 40 00 10 42 00 =0925+504 10 12 55 73.6 -25.1 0.7 147.4 100 F 1 0 10 40 00 10 42 00 J0927+3902 10 12 55 80.4 -66.9 0.8 106.2 -34 1 1 0 10 42 00 10 49 00 =0923+392 10 19 56 79.1 -68.8 0.9 103.2 386 F 1 0 10 42 00 Schedule for VLBA_LA (Code La ) Page 4 BW083B / Central component of 0957+561 / Winn et al. UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Fri 30 Dec 2005 Day 364 --- 10 49 00 3C286 10 19 56 50.0 83.4 -3.2 -69.3 -108 1 1 0 10 49 00 10 58 00 --- 10 28 58 51.8 84.5 -3.0 -69.6 432 F 1 0 10 49 00 10 58 00 J1035+5628 10 28 58 69.3 2.6 -0.1 -176.2 -61 1 1 0 Stopped 11 08 00 =1031+567 10 38 59 69.3 -1.4 0.1 178.0 539 S 1 0 11 08 00 J0929+5013 10 38 59 70.9 -35.6 1.2 132.4 -29 1 1 0 11 08 00 11 10 00 =0925+504 10 41 00 70.7 -36.3 1.2 131.4 91 F 1 0 11 08 18 11 10 00 GL0957 10 41 00 68.8 -15.3 0.7 157.5 -20 1 1 0 11 10 00 11 23 00 --- 10 54 02 68.0 -19.8 0.9 150.7 760 F 1 0 11 10 00 11 23 00 J0929+5013 10 54 02 69.0 -40.0 1.4 125.4 -19 1 1 0 11 23 00 11 25 00 =0925+504 10 56 02 68.8 -40.5 1.4 124.5 101 F 1 0 11 23 00 11 25 00 GL0957 10 56 02 67.9 -20.5 0.9 149.6 -19 1 1 0 11 25 00 11 38 00 --- 11 09 04 66.9 -24.4 1.1 143.3 761 F 1 0 11 25 00 11 38 00 J0929+5013 11 09 04 67.0 -43.5 1.7 119.3 -19 1 1 0 11 38 00 11 40 00 =0925+504 11 11 05 66.7 -43.9 1.7 118.6 101 F 1 0 11 38 00 11 40 00 J1035+5628 11 11 05 68.5 -13.5 0.6 160.0 -26 1 1 0 Stopped 11 43 00 =1031+567 11 14 05 68.3 -14.5 0.6 158.4 154 S 1 0 11 43 00 J0929+5013 11 14 05 66.3 -44.4 1.7 117.5 -26 1 1 0 11 43 00 11 45 00 =0925+504 11 16 05 66.0 -44.8 1.8 116.8 94 F 1 0 11 43 18 11 45 00 GL0957 11 16 05 66.3 -26.4 1.2 140.0 -18 1 1 0 11 45 00 11 58 00 --- 11 29 08 65.0 -29.6 1.5 134.4 762 F 1 0 11 45 00 11 58 00 J0929+5013 11 29 08 64.1 -46.8 2.0 112.4 -17 1 1 0 11 58 00 12 00 00 =0925+504 11 31 08 63.8 -47.1 2.0 111.8 103 F 1 0 11 58 00 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: vlba.21cm Matches group v20cm_2 in /home/arana/cwalker/sched/catalogs/freq.dat FD filtered above 1760. SC filtered above 1740. Setup group: 5 Station: VLBA_LA Total bit rate: 256 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Speedup factor: 1.00 Disk used to record data. 1st LO= 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= L L L L L L L L IF = A C A C A C A C VLBA FE= 20cm omit 20cm omit VLBA Synth= 15.4 2.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 5 Setup file default. Used pcal sets: 1 LO sum= 1400.49 1400.49 1408.49 1408.49 1416.49 1416.49 1424.49 1424.49 BBC fr= 999.51 999.51 991.51 991.51 983.51 983.51 975.51 975.51 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S5 S7 S1 S3 S5 S7 PCALXB2= S2 S4 S6 S8 S2 S4 S6 S8 PCALFR1= 510 510 510 510 6510 6510 6510 6510 PCALFR2= 510 510 510 510 6510 6510 6510 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off SOURCE LIST -- BW083B / Central component of 0957+561 / Winn et al. Catalog positions marked with *. Precession of date coordinates is based on stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Observation date used in B1950/J2000 coordinate conversion (PRECDATE): 1979.900 No adjustments are made for rates (DRA, DDEC). Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * GL0957 09 57 57.423100 * 10 01 20.848640 10 01 47.160568 0.00 56 08 16.93624 * 55 53 50.05350 55 51 56.14837 0.00 From catalog imbedded in main SCHED input file. 2.383 scan hours, 151.024 baseline hours above horizon. * J0927+3902 09 23 55.319212 * 09 27 03.013933 09 27 26.932639 0.26 0923+392 39 15 23.56648 * 39 02 20.85188 39 00 42.23379 0.40 4C39.25 /home/arana/cwalker/sched/catalogs/sources.vlba J0927+39 VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.233 scan hours, 12.668 baseline hours above horizon. * J0929+5013 09 25 51.973730 * 09 29 15.440211 09 29 41.639141 0.35 0925+504 50 26 44.31094 * 50 13 35.98996 50 11 54.65888 0.43 /home/arana/cwalker/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.567 scan hours, 26.499 baseline hours above horizon. * J1035+5628 10 31 55.954869 * 10 35 07.040022 10 35 31.669300 0.59 1031+567 56 44 18.17883 * 56 28 46.79612 56 26 42.77274 0.47 J1035+56 /home/arana/cwalker/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.000 scan hours, 0.000 baseline hours above horizon. J1331+3030 13 28 49.657757 * 13 31 08.288049 13 31 24.655304 0.37 1328+307 30 45 58.64062 * 30 30 32.95926 30 28 28.52950 0.47 * 3C286 /home/arana/cwalker/sched/catalogs/sources.vlba J1331+30 VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.150 scan hours, 6.929 baseline hours above horizon. 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) GL0957 130.6 J0927+3902 140.9 J0929+5013 137.2 J1035+5628 126.0 3C286 91.0 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