COVER INFORMATION Station: VLBA_KP (Code Kp ) Experiment: Monitoring Knot HST-1 in M87 Jet Exp. Code: BH126A Schedule Version: 1.00 Processed by SCHED version: NRAO internal release of 4 October 2004 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 Dec 6, 2004): 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. 20Apr05 or later (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]: Within 1 week to 10 days of 2Jan05 (Chandra Obs) and 31Dec04 (VLA Obs) 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_KP (Code Kp ) 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) ---------------------------------------------------------------------------------------- --- Thu 23 Dec 2004 Day 358 --- 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 09 33 24 3C147 08 16 02 56.5 -46.4 2.6 107.7 0 1 1 0 09 33 04 09 38 24 --- 08 21 02 55.8 -46.8 2.6 106.4 299 F 1 2128 09 40 53 1148-001 08 23 32 31.3 113.0 -3.5 -51.4 37 1 1 2128 09 40 33 09 45 52 --- 08 28 32 32.3 113.9 -3.4 -50.9 299 F 1 4256 09 46 52 3C274 08 29 32 31.5 95.0 -4.0 -59.9 41 1 1 4256 09 46 32 10 16 47 --- 08 59 32 37.8 99.5 -3.5 -58.9 1795 F 1 16356 10 17 47 3C274 09 00 32 38.0 99.7 -3.5 -58.9 54 1 2 16356 10 17 27 10 47 42 --- 09 30 32 44.3 104.8 -3.0 -57.1 1795 R 1 6743 10 49 47 3C147 09 32 37 44.4 -49.4 3.8 90.7 16 1 2 6743 10 49 27 10 54 47 --- 09 37 37 43.6 -49.5 3.9 89.7 299 R 1 4615 10 57 05 1148-001 09 39 56 45.2 129.8 -2.2 -40.7 13 1 2 4615 10 56 45 11 02 04 --- 09 44 56 46.0 131.2 -2.1 -39.7 299 R 1 2487 11 03 04 3C274 09 45 56 47.4 107.8 -2.8 -55.8 38 1 3 2487 11 02 44 11 32 59 --- 10 15 56 53.3 114.5 -2.3 -52.2 1795 F 1 9613 11 33 59 3C274 10 16 56 53.5 114.8 -2.2 -52.0 54 1 4 9613 11 33 39 12 03 54 --- 10 46 56 59.1 123.4 -1.7 -46.5 1795 R 1 13486 12 06 00 3C147 10 49 02 32.2 -47.8 5.1 77.0 6 1 4 13486 12 05 40 12 10 59 --- 10 54 02 31.4 -47.6 5.2 76.2 299 R 1 11358 12 13 28 1148-001 10 56 31 55.2 155.7 -0.9 -20.5 7 1 4 11358 12 13 08 12 18 27 --- 11 01 31 55.6 157.7 -0.8 -18.7 299 R 1 9231 12 19 27 3C274 11 02 31 61.8 128.9 -1.5 -42.5 35 1 5 9231 12 19 07 12 49 22 --- 11 32 31 66.2 142.2 -1.0 -32.1 1795 F 1 2870 12 50 22 3C274 11 33 31 66.4 142.7 -1.0 -31.7 54 1 5 2870 12 50 02 13 20 17 --- 12 03 31 69.4 160.5 -0.5 -16.8 1795 F 1 14971 13 22 16 3C147 12 05 31 20.5 316.8 6.4 64.4 10 1 5 14971 13 21 56 13 27 16 --- 12 10 31 19.8 317.1 6.5 63.6 299 F 1 17099 Schedule for VLBA_KP (Code Kp ) 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) ---------------------------------------------------------------------------------------- --- Thu 23 Dec 2004 Day 358 --- 13 29 05 1148-001 12 12 21 57.2 189.9 0.4 8.4 18 1 6 17099 13 28 45 13 34 04 --- 12 17 21 57.0 192.2 0.4 10.3 299 R 1 15974 13 35 04 3C274 12 18 21 70.2 170.8 -0.2 -8.0 28 1 6 15974 13 34 44 14 04 59 --- 12 48 21 70.0 192.4 0.3 10.8 1795 R 1 3873 14 05 59 3C274 12 49 21 70.0 193.1 0.3 11.4 54 1 7 3873 14 05 39 14 35 54 --- 13 19 21 67.5 212.2 0.8 27.6 1795 F 1 8228 14 36 54 1148-001 13 20 21 51.3 217.5 1.5 31.1 22 1 7 8228 14 36 34 14 41 53 --- 13 25 21 50.7 219.2 1.6 32.4 299 F 1 10355 14 42 53 3C274 13 26 21 66.7 216.1 0.9 30.8 22 1 8 10355 14 42 33 15 12 48 --- 13 56 21 62.3 229.8 1.4 41.6 1795 R 1 12744 15 13 48 3C274 13 57 21 62.1 230.2 1.4 41.9 54 1 8 12744 15 13 28 15 43 43 --- 14 27 21 56.9 240.3 1.9 49.0 1795 R 1 643 15 44 42 1148-001 14 28 21 40.7 236.7 2.6 45.2 21 1 9 643 15 44 22 15 49 42 --- 14 33 21 39.8 237.9 2.7 46.0 299 F 1 1484 15 50 41 3C274 14 34 21 55.6 242.3 2.1 50.3 22 1 9 1484 15 50 21 16 20 37 --- 15 04 21 49.8 249.7 2.6 54.6 1795 F 1 13585 16 21 36 3C274 15 05 21 49.6 249.9 2.6 54.7 54 1 10 13585 16 21 16 16 51 32 --- 15 35 21 43.5 255.9 3.1 57.4 1795 R 1 9514 16 52 31 1148-001 15 36 21 27.8 250.2 3.8 53.0 22 1 10 9514 16 52 11 16 57 31 --- 15 41 21 26.8 251.0 3.8 53.4 299 R 1 7387 16 58 30 3C274 15 42 21 42.1 257.1 3.2 57.9 23 1 11 7387 16 58 10 17 28 25 --- 16 12 21 35.8 262.0 3.7 59.3 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: 1 Station: VLBA 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: 1 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) (B1950) (J2000) (Date) J0542+4951 05 38 43.517539 * 05 42 36.137917 05 43 00.642342 0538+498 49 49 42.83693 * 49 51 07.23356 49 51 23.38306 * 3C147 /home/filehost/cwalker/sched/catalogs/sources.vlba J0542+49 ICRF - Ext.1 Source - 1998 IERS Annual Report 0.582 scan hours, 12.050 baseline hours above horizon. J1150-0023 11 48 10.124953 * 11 50 43.870762 11 50 58.768255 * 1148-001 -00 07 13.16375 *-00 23 54.20490 -00 25 30.47197 J1150-00 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report 0.582 scan hours, 22.023 baseline hours above horizon. J1230+1223 12 28 17.569280 * 12 30 49.423382 12 31 03.997900 1228+126 12 40 01.74911 * 12 23 28.04393 12 21 46.70199 * 3C274 /home/filehost/cwalker/sched/catalogs/sources.vlba J1230+12 ICRF - Ext.1 Source - 1998 IERS Annual Report 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 153.1 1148-001 94.0 3C274 90.0 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