COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: Monitoring Knot HST-1 in M87 Jet Exp. Code: BH126D Schedule Version: 1.00 Processed by SCHED version: 6.01 Release: Late March 2005 PI: D.E. Harris Address: MS-3, CfA, 60 Garden St Cambridge, MA 02138 U.S.A. Phone: 617 495 7148 EMAIL: harris@cfa.harvard.edu Fax: 617 495 7356 Phone during observation: 617 495 7148 Observing mode: 90cm 128-4-2 Notes: COVER LETTER: BH126 SUMMARY (as of 11 Jan 2005): We request within 1 week to 10 days coordination with planned Chandra X-ray Observatory observations at 4 epochs: 1. 2Jan05 (VLBA 90cm, 90/50cm, L band for 8 hrs/run = BH126 A, B, C). Coordinated also with VLA observation AH862 on 31Dec04. 2. Anytime after 20Apr05 until the end of B array, 23May (VLBA 90cm, 90/50cm, L band for 8 hrs/run = BH126 D, E, F). Coordinated also with VLA observation AH862. 3. 1Jun05 (VLBA L-band for 8 hrs = BH126 G). 4. 6Aug05 (VLBA L band for 8 hrs = BH126 H). -------------------------------------------------------------------- Here is the official dynamic scheduling sheet: ================================================================ Preferred Dynamic Contraints. Alter [defaults] as desired. ================================================================ Equipment constraints: Stations. Below each station code, the "o" indicates an [optional] station that is to be used if it is available. Change "o" to "r" if the station is required or change "o" to "n" if the station is not to be used. SC HN NL FD LA PT KP OV BR MK o o o o o o o o o r Minimum number of stations [7]: May we swap PT for a single VLA antenna? [yes] Consult http://www.aoc.nrao.edu/~gtaylor/y1gotcha.html to decide. If you adopt the default, then both PT and VLA1 must be in the stations list in the keyin file. Bands and polarizations. Below each band code, insert "R" if the righthand polarization is to be used, "L" if the lefthand polarization is to be used, "d" if dual polarizations are to be used, or "o" if the band is in your setups but scheduling should not be constrained by its availability. 90cm 50cm 20cm 13cm 6cm 4cm 2cm 1cm 7mm 3mm d Weather constraints: [appropriate for bands marked "L", "R", or "d" above and for at least the minimum number of stations] Date constraints: Preferred date(s), usually a series start [none]: Anytime after 20Apr05 until the end of B array, 23May Excluded dates plus reason [none]: Too close to Sun. Preferred interval between segments in days [none]: Special conditions (e.g., a series with different spacings in time) [See the comments at the top.]: Schedule for VLBA_LA (Code La ) Page 2 Monitoring Knot HST-1 in M87 Jet 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). 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) ---------------------------------------------------------------------------------------- --- Tue 19 Apr 2005 Day 109 --- Next scan frequencies: 324.49 324.49 332.49 332.49 Next BBC frequencies: 824.49 824.49 832.49 832.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 01 53 23 3C147 08 37 30 55.6 -52.0 2.9 97.3 0 1 1 0 01 53 03 01 58 22 --- 08 42 30 54.8 -52.2 3.0 96.2 299 F 1 2128 02 00 52 1148-001 08 45 00 34.2 118.7 -3.1 -45.4 30 1 1 2128 02 00 32 02 05 51 --- 08 50 00 35.1 119.8 -3.0 -44.8 299 F 1 4256 02 06 51 3C274 08 51 00 35.4 100.9 -3.7 -54.7 41 1 1 4256 02 06 31 02 36 46 --- 09 21 00 41.3 106.4 -3.2 -52.8 1795 F 1 16356 02 37 46 3C274 09 22 00 41.5 106.6 -3.2 -52.8 54 1 2 16356 02 37 26 03 07 41 --- 09 52 00 47.2 113.0 -2.7 -49.9 1795 R 1 6743 03 09 46 3C147 09 54 05 43.3 -52.0 4.2 82.6 9 1 2 6743 03 09 26 03 14 45 --- 09 59 05 42.5 -51.9 4.3 81.8 299 R 1 4615 03 17 03 1148-001 10 01 23 46.4 138.1 -1.8 -32.8 5 1 2 4615 03 16 43 03 22 02 --- 10 06 23 47.1 139.7 -1.7 -31.7 299 R 1 2487 03 23 02 3C274 10 07 23 50.1 116.7 -2.4 -47.9 39 1 3 2487 03 22 42 03 52 57 --- 10 37 23 55.3 125.2 -1.9 -42.7 1795 F 1 9613 03 53 57 3C274 10 38 23 55.5 125.6 -1.9 -42.5 54 1 4 9613 03 53 37 04 23 52 --- 11 08 23 60.1 136.3 -1.4 -35.0 1795 R 1 13486 04 25 58 3C147 11 10 29 31.4 311.6 5.5 70.2 3 1 4 13486 04 25 38 04 30 57 --- 11 15 29 30.6 311.9 5.5 69.4 299 R 1 11358 04 33 26 1148-001 11 17 58 53.8 165.9 -0.6 -11.4 45 1 4 11358 04 33 06 04 38 25 --- 11 22 58 54.0 168.0 -0.5 -9.7 299 R 1 9231 04 39 25 3C274 11 23 58 62.1 142.9 -1.1 -30.1 37 1 5 9231 04 39 05 05 09 20 --- 11 53 58 65.1 158.0 -0.6 -18.1 1795 F 1 2870 05 10 19 3C274 11 54 58 65.2 158.5 -0.6 -17.7 54 1 5 2870 05 09 59 05 40 15 --- 12 24 58 66.5 176.2 -0.1 -3.1 1795 F 1 14971 05 42 14 3C147 12 26 58 20.3 317.6 6.7 58.1 19 1 5 14971 05 41 54 05 47 13 --- 12 31 58 19.6 318.0 6.8 57.3 299 F 1 17099 Schedule for VLBA_LA (Code La ) Page 3 Monitoring Knot HST-1 in M87 Jet 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). 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) ---------------------------------------------------------------------------------------- --- Tue 19 Apr 2005 Day 109 --- 05 49 02 1148-001 12 33 47 53.2 198.1 0.7 14.6 23 1 6 17099 05 48 42 05 54 01 --- 12 38 47 52.9 200.1 0.8 16.2 299 R 1 15974 05 55 01 3C274 12 39 47 66.5 185.3 0.1 4.4 27 1 6 15974 05 54 41 06 24 56 --- 13 09 47 65.0 202.9 0.6 18.8 1795 R 1 3873 06 25 56 3C274 13 10 47 64.9 203.4 0.7 19.3 54 1 7 3873 06 25 36 06 55 51 --- 13 40 47 61.8 218.2 1.2 30.9 1795 F 1 8228 06 56 51 1148-001 13 41 47 46.2 222.2 1.8 33.0 23 1 7 8228 06 56 31 07 01 50 --- 13 46 47 45.5 223.7 1.9 34.1 299 F 1 10355 07 02 50 3C274 13 47 47 60.9 221.3 1.3 33.2 23 1 8 10355 07 02 30 07 32 45 --- 14 17 47 56.4 232.5 1.8 41.2 1795 R 1 12744 07 33 45 3C274 14 18 47 56.3 232.8 1.8 41.4 54 1 8 12744 07 33 25 08 03 40 --- 14 48 47 51.2 241.7 2.3 47.0 1795 R 1 643 08 04 40 1148-001 14 49 47 35.5 239.7 3.0 44.5 22 1 9 643 08 04 20 08 09 39 --- 14 54 47 34.6 240.8 3.1 45.1 299 F 1 1484 08 10 39 3C274 14 55 47 49.9 243.5 2.4 48.0 23 1 9 1484 08 10 19 08 40 34 --- 15 25 47 44.3 250.5 2.9 51.5 1795 F 1 13585 08 41 34 3C274 15 26 47 44.1 250.7 2.9 51.6 54 1 10 13585 08 41 14 09 11 29 --- 15 56 47 38.3 256.6 3.4 53.9 1795 R 1 9514 09 12 29 1148-001 15 57 47 22.9 252.8 4.1 50.8 23 1 10 9514 09 12 09 09 17 28 --- 16 02 47 21.9 253.7 4.2 51.1 299 R 1 7387 09 18 28 3C274 16 03 47 36.9 257.8 3.5 54.3 24 1 11 7387 09 18 08 09 48 23 --- 16 33 47 30.9 262.9 4.0 55.5 1795 F 1 4714 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bw051.set Matches group v5090n in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 5 Station: VLBA_LA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= -500.00 -500.00 -500.00 -500.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = B D B D VLBA FE= omit 90cm omit 90cm VLBA Synth= 15.4 15.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 5 Setup file default. Used pcal sets: 1 LO sum= 324.49 324.49 332.49 332.49 BBC fr= 824.49 824.49 832.49 832.49 Bandwd= 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 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto SOURCE LIST -- Monitoring Knot HST-1 in M87 Jet 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) J0542+4951 05 38 43.517527 * 05 42 36.137904 05 42 58.951166 0.33 0538+498 49 49 42.83710 * 49 51 07.23373 49 51 31.13585 0.41 * 3C147 /home/filehost/cwalker/sched/catalogs/sources.vlba J0542+49 VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.582 scan hours, 12.050 baseline hours above horizon. J1150-0023 11 48 10.082183 * 11 50 43.870748 11 51 00.793960 0.22 * 1148-001 00 40 35.24185 * 00 23 54.20538 00 22 04.26898 0.34 J1150-00 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.582 scan hours, 22.023 baseline hours above horizon. J1230+1223 12 28 17.569279 * 12 30 49.423381 12 31 06.395302 0.31 1228+126 12 40 01.74900 * 12 23 28.04382 12 21 39.10308 0.20 * 3C274 /home/filehost/cwalker/sched/catalogs/sources.vlba J1230+12 VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 6.482 scan hours, 256.797 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) 3C147 61.4 1148-001 148.5 3C274 149.5 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