SUMMARY FILE FOR PROJECT: BR093A COVER INFORMATION: Experiment: Exploratory Imaging of Q0906+6930 Exp. Code: BR093A Start Day 58 is Fri 27 Feb 2004 MJD 53062 Schedule Version: 1.00 Processed by SCHED version: Release of 18 Sept. 2003 PI: Roger W. Romani Address: Stanford University Department of Physics Stanford, CA 94305-4060 USA Phone: (650) 725-7595 EMAIL: rwr@astro.stanford.edu Fax: (650) 725-9389 Phone during observation: (650) 725-7595 Observing mode: 128-4-2 2 cm Notes: Suitable for dynamic scheduling. Pulse-cal at all stations. 90 minute track approved. 1h25m scheduled to permit 5m setup. No cover letter provided. CORRELATION REQUESTS (Defaults in parentheses): Correlator (Required if recording): SOCORRO Correlator average time (2 sec): 2.000 sec. Alternate average time (for spacecraft). 0.000 sec. Spectral channels per baseband (16): 16 Number of antennas to be correlated: 10 Polarization (ON): OFF Correlator weighting function (UNIFORM): UNIFORM Distribution tape (DAT): DAT Source positions from: VLBA DATABASE Shipping address for correlator output: Roger Romani Department of Physics Stanford University Stanford, CA 94305-4060 Correlator Notes: DERIVED INFORMATION FOR CORRELATION: Elapsed time for project: 1.41 hours. Total time in scheduled scans: 1.35 hours. Total time in recording scans: 1.35 hours. Total number of baseline hours: 74.05 (Recording scans only) Projected maximum data output rate from the correlator: 28.2 kbytes/sec if processed in one pass. Projected correlator output data set size: 68.2 Mbytes NOTE: Above numbers assume the same correlator parameters are used for all data. STATIONS USED IN SCHEDULE: Station Code Latitude Longitude Elevation X Y Z VLBA_HN Hn 42.93361 71.98658 296. 1446375.13 -4447939.65 4322306.12 VLBA_FD Fd 30.63503 103.94482 1606. -1324009.12 -5332181.97 3231962.47 VLBA_NL Nl 41.77142 91.57414 222. -130872.24 -4762317.12 4226851.04 VLBA_LA La 35.77512 106.24560 1962. -1449752.35 -4975298.59 3709123.93 VLBA_PT Pt 34.30102 108.11919 2365. -1640953.70 -5014816.03 3575411.88 VLBA_KP Kp 31.95630 111.61242 1902. -1995678.62 -5037317.71 3357328.13 VLBA_BR Br 48.13122 119.68328 250. -2112064.97 -3705356.51 4726813.79 VLBA_OV Ov 37.23165 118.27705 1196. -2409150.10 -4478573.23 3838617.39 VLBA_MK Mk 19.80138 155.45550 3763. -5464074.96 -2495249.12 2148296.84 VLBA_SC Sc 17.75658 64.58363 -15. 2607848.52 -5488069.68 1932739.53 BASELINE LENGTHS (km) Hn Fd Nl La Pt Kp Br Ov Mk Sc Hn 0 3105 1611 3006 3226 3623 3657 3885 7502 2853 Fd 3105 0 1654 608 564 744 2345 1508 5134 4143 Nl 1611 1654 0 1432 1663 2075 2300 2328 6156 3645 La 3006 608 1432 0 236 652 1757 1088 4970 4458 Pt 3226 564 1663 236 0 417 1806 973 4795 4579 Kp 3623 744 2075 652 417 0 1913 845 4466 4839 Br 3657 2345 2300 1757 1806 1913 0 1214 4398 5767 Ov 3885 1508 2328 1088 973 845 1214 0 4015 5460 Mk 7502 5134 6156 4970 4795 4466 4398 4015 0 8611 Sc 2853 4143 3645 4458 4579 4839 5767 5460 8611 0 RECORDING SYSTEM INFORMATION: TAPES - Stations potentially recording on tape. (See setup details later for times per pass.) Station Drives Head pos Tape len Density Start position Auto Auto Recorder (ft) Driv Head indx Aloc Reverse VLBA_HN 2 14 17600 High 1 1 Yes Yes VLBA VLBA_FD 2 14 17600 High 1 1 Yes Yes VLBA VLBA_NL 2 14 17600 High 1 1 Yes Yes VLBA VLBA_LA 2 14 17600 High 1 1 Yes Yes VLBA VLBA_PT 2 14 17600 High 1 1 Yes Yes VLBA VLBA_KP 2 14 17600 High 1 1 Yes Yes VLBA VLBA_BR 2 14 17600 High 1 1 Yes Yes VLBA VLBA_OV 2 14 17600 High 1 1 Yes Yes VLBA VLBA_MK 2 14 17600 High 1 1 Yes Yes VLBA VLBA_SC 2 14 17600 High 1 1 Yes Yes VLBA EXPERIMENT SUMMARY: Number of input scans: 5 Number of scans scheduled: 5 Number of stations: 10 Number of sources input: 2 Number of setup files used: 1 Station summaries (tape stations): Station Control Scans Scan Hours Tape hours Tapes Passes Readbacks VLBA_HN VLBA 5 1.35 1.35 1 2 0 VLBA_FD VLBA 5 1.35 1.35 1 2 0 VLBA_NL VLBA 5 1.35 1.35 1 2 0 VLBA_LA VLBA 5 1.35 1.35 1 2 0 VLBA_PT VLBA 5 1.35 1.35 1 2 0 VLBA_KP VLBA 5 1.35 1.35 1 2 0 VLBA_BR VLBA 5 1.35 1.35 1 2 0 VLBA_OV VLBA 5 1.35 1.35 1 2 0 VLBA_MK VLBA 5 1.35 1.35 1 2 0 VLBA_SC VLBA 5 1.35 1.35 1 2 0 Station summaries (disk stations): Station Control Scans Scan Hours Record hrs Gbytes Setup file: /home/filehost/cwalker/sched/setups/v2cm-128-4-2.set Matches group v2cm_d3 in /home/filehost/cwalker/sched/catalogs/freq.dat Fourth 2cm filter 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= 14600.00 14600.00 14600.00 14600.00 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 2cm omit 2cm VLBA Synth= 14.6 10.9 10.9 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 15357.49 15357.49 15365.49 15365.49 BBC fr= 757.49 757.49 765.49 765.49 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 SUMMARY for experiment BR093A Exploratory Imaging of Q0906+6930 Top item is: Start elevation, flag (D=>Down, H=>Below Horizon, t=>Tape Change.) Bottom item is: Seconds antenna is on source before scan start. TYPE top: -=> normal scan, P=>Pointing or Ta; bottom: -=>recording, N=>not recording. Day 58 is Fri 27 Feb 2004 MJD 53062 DAY START UT SOURCE TYPE STATIONS t => tape change STOP UT Hn Fd Nl La Pt Kp Br Ov Mk Sc 58 05:01:56 0716+714 - 53 48 57 54 52 50 67 56 35 27 58 05:05:55 v2cm-128-4-2 - 0 0 0 0 0 0 0 0 0 0 58 05:06:55 Q0906+6930 - 61 51 62 56 54 51 66 56 29 35 58 05:41:19 - - 38 45 43 44 44 45 39 43 42 38 58 05:42:19 0716+714 - 50 47 55 52 51 49 66 55 37 24 58 05:46:18 - - 36 45 40 45 45 45 39 43 44 37 58 05:47:18 Q0906+6930 - 58 51 61 56 55 52 68 57 32 32 58 06:21:43 - - 37 45 40 45 45 45 39 44 45 37 58 06:22:42 0716+714 - 47 45 52 50 49 47 65 54 38 21 58 06:26:42 - - 36 42 38 42 43 44 40 44 47 36 SUMMARY for experiment BR093A Exploratory Imaging of Q0906+6930 Top item is: Scan end: Tape drive, direction, and head index. Disk Gbytes. Bottom item is: Headset at scan end and tape footage (thousands) at scan start. Tape parameters are only predictions for stations using automatic tape allocation. TYPE top: -=> normal scan, P=>Pointing or Ta; bottom: -=>recording, N=>not recording. Day 58 is Fri 27 Feb 2004 MJD 53062 DAY START UT SOURCE TYPE STATIONS t => tape change STOP UT Hn Fd Nl La Pt Kp Br Ov Mk Sc 58 05:01:56 0716+714 - 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 58 05:05:55 v2cm-128-4-2 - 1/00 1/00 1/00 1/00 1/00 1/00 1/00 1/00 1/00 1/00 58 05:06:55 Q0906+6930 - 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 58 05:41:19 - - 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/02 58 05:42:19 0716+714 - 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 58 05:46:18 - - 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 58 05:47:18 Q0906+6930 - 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 58 06:21:43 - - 1/17 1/17 1/17 1/17 1/17 1/17 1/17 1/17 1/17 1/17 58 06:22:42 0716+714 - 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 58 06:26:42 - - 1/04 1/04 1/04 1/04 1/04 1/04 1/04 1/04 1/04 1/04 Automatic tape allocation requested for sites using VLBA control files and having 2 or more drives. SCHED cannot predict tape changes. Number of tapes used at each autoaloc station: Station Tapes VLBA_HN 0.13 VLBA_FD 0.13 VLBA_NL 0.13 VLBA_LA 0.13 VLBA_PT 0.13 VLBA_KP 0.13 VLBA_BR 0.13 VLBA_OV 0.13 VLBA_MK 0.13 VLBA_SC 0.13 ESTIMATED TAPE TIMES (With autoallocation): Times are approximate and assume project starts at the beginning of a tape. Times can be affected by actual tape length. Tape change may occur during scan preceeding indicated time. Tape start time. Tape end time. Station Day Time Day Time (UT) (UT) VLBA_HN 58 05:01:56 58 06:26:42 VLBA_FD 58 05:01:56 58 06:26:42 VLBA_NL 58 05:01:56 58 06:26:42 VLBA_LA 58 05:01:56 58 06:26:42 VLBA_PT 58 05:01:56 58 06:26:42 VLBA_KP 58 05:01:56 58 06:26:42 VLBA_BR 58 05:01:56 58 06:26:42 VLBA_OV 58 05:01:56 58 06:26:42 VLBA_MK 58 05:01:56 58 06:26:42 VLBA_SC 58 05:01:56 58 06:26:42 SOURCE LIST -- Exploratory Imaging of Q0906+6930 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). Source Source position (RA/Dec) (B1950) (J2000) (Date) * Q0906+6930 09 01 52.296508 * 09 06 30.749400 09 06 56.873363 69 42 32.11551 * 69 30 30.84400 69 29 41.30878 From catalog imbedded in main SCHED input file. J0721+7120 07 16 13.029725 * 07 21 53.448460 07 22 23.462291 * 0716+714 71 26 15.17405 * 71 20 36.36339 71 20 25.60102 J0721+71 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report 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) Q0906+6930 117.3 0716+714 110.4 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 Source separations in degrees for pairs closer than 15.00 degrees. Q0906+6930 J0721+7120 8.8781 J2000 coordinates formatted for possible transfer to the correlator data base: name = 'Q0906+6930' ra = 09h06m30.749400s dec = 69d30'30.84400" name = '0716+714' ra = 07h21m53.448460s dec = 71d20'36.36339" Code versions: Release version: Release of 18 Sept. 2003 Version of sched code: 5.22 Version of VEX standard: 1.50 Version of VEX code: 0.79 Version of plot code: 1.05 Version of ephemeris code: 1.01 Version of PGPLOT: v5.2.0