SUMMARY FILE FOR PROJECT: bw067b COVER INFORMATION: Experiment: Image 3C120 at 90cm - calibrator test Exp. Code: bw067b Schedule Version: 1.00 Processed by SCHED version: Release of 02 July 2002 PI: Craig Walker Address: National Radio Astronomy Observatory P. O. Box O Socorro, New Mexico, 87801 U.S.A. Phone: 505 835 7247 EMAIL: cwalker@nrao.edu Fax: 505 835 7027 Phone during observation: 505 835 7247 Observing mode: 6cm 128-4-2 Notes: COVER LETTER: BW067A SUMMARY: This project needs about 100 hours times 45 baselines to meet the sensitivity requirements. This time can be accumulated in many separated sessions. One session should be a full track with all antennas to set the calibration and ensure full uv coverage. The other sessions can involve as little as 2 hours and as few as 6 antennas. The sessions can be run as filler in gaps between other projects. The observing frequency is 327 MHz. Tropospheric weather is not an issue - any conditions are ok. The ionosphere is a potential serious problem. For the next several months, 3C120 is a daytime object. We wish to start with a short test to see if this is a sufficiently serious problem to warrent postponing the start of the main observational sequence. The first session of 2 hours (BW067A) revealed that neither 3C120 nor 3C84 are strongly detected to MK, and to some extent, HN and SC. It was tricky getting delays etc for those sources. -------------------------------------------------------------------- For the second session, please observe for 2 to 4 hours with 6 or more antennas INCLUDING MK. That can be any 2-4 hours schedule. Then allow us to reduce the data to check to check the calibration sources. This is much like session A, except that we are trying different calibrators. -------------------------------------------------------------------- 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 [6]: 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]: Excluded dates plus reason [none]: Preferred interval between segments in days [none]: Special conditions (e.g., a series with different spacings in time) [See the comments at the top.]: CORRELATION REQUESTS (Defaults in parentheses): Correlator (Required if recording): SOCORRO Correlator average time (2 sec): 1.050 sec. Alternate average time (for spacecraft). 0.000 sec. Spectral channels per baseband (16): 64 Number of antennas to be correlated: 10 Polarization (ON): ON Correlator weighting function (UNIFORM): UNIFORM Distribution tape (DAT): DAT Source positions from: STANDARD Shipping address for correlator output: Craig Walker P. O. Box O Socorro NM 87801 Correlator Notes: DERIVED INFORMATION FOR CORRELATION: Elapsed time for project: 3.86 hours. Total time in scheduled scans: 3.32 hours. Total time in recording scans: 3.32 hours. Total number of baseline hours: 217.57 (Recording scans only) Projected maximum data output rate from the correlator: 514.9 kbytes/sec if processed in one pass. Projected correlator output data set size: 3055.4 Mbytes NOTE: Above numbers assume the same correlator parameters are used for all data. ******** WARNING: Projected correlator output data rate exceeds VLBA correlator limit of 500 kbytes per second. Higher rates may be ok. Contact Socorro for info. STATIONS USED IN SCHEDULE: Station Code Latitude Longitude Elevation X Y Z VLBA_SC Sc 17.75658 64.58363 -15. 2607848.52 -5488069.68 1932739.53 VLBA_HN Hn 42.93361 71.98658 296. 1446375.13 -4447939.65 4322306.12 VLBA_NL Nl 41.77142 91.57414 222. -130872.24 -4762317.12 4226851.04 VLBA_FD Fd 30.63503 103.94482 1606. -1324009.12 -5332181.97 3231962.47 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_OV Ov 37.23165 118.27705 1196. -2409150.10 -4478573.23 3838617.39 VLBA_BR Br 48.13122 119.68328 250. -2112064.97 -3705356.51 4726813.79 VLBA_MK Mk 19.80138 155.45550 3763. -5464074.96 -2495249.12 2148296.84 VLA1 Y 34.07697 107.61358 2114. -1600801.74 -5042219.04 3554706.24 BASELINE LENGTHS (km) Sc Hn Nl Fd La Pt Kp Ov Br Mk Y Sc 0 2853 3645 4143 4458 4579 4839 5460 5767 8611 4532 Hn 2853 0 1611 3105 3006 3226 3623 3885 3657 7502 3198 Nl 3645 1611 0 1654 1432 1663 2075 2328 2300 6156 1640 Fd 4143 3105 1654 0 608 564 744 1508 2345 5134 514 La 4458 3006 1432 608 0 236 652 1088 1757 4970 226 Pt 4579 3226 1663 564 236 0 417 973 1806 4795 52 Kp 4839 3623 2075 744 652 417 0 845 1913 4466 441 Ov 5460 3885 2328 1508 1088 973 845 0 1214 4015 1025 Br 5767 3657 2300 2345 1757 1806 1913 1214 0 4398 1849 Mk 8611 7502 6156 5134 4970 4795 4466 4015 4398 0 4836 Y 4532 3198 1640 514 226 52 441 1025 1849 4836 0 TAPE INITIALIZATION and CONTROL INFORMATION: (See setup details later for times per pass.) Station Drives Head pos Tape len Density Start position Auto Auto (ft) Drive Head index Aloc Reverse VLBA_SC 2 14 17600 High 1 1 Yes Yes VLBA_HN 2 14 17600 High 1 1 Yes Yes VLBA_NL 2 14 17600 High 1 1 Yes Yes VLBA_FD 2 14 17600 High 1 1 Yes Yes VLBA_LA 2 14 17600 High 1 1 Yes Yes VLBA_PT 2 14 17600 High 1 1 Yes Yes VLBA_KP 2 14 17600 High 1 1 Yes Yes VLBA_OV 2 14 17600 High 1 1 Yes Yes VLBA_BR 2 14 17600 High 1 1 Yes Yes VLBA_MK 2 14 17600 High 1 1 Yes Yes VLA1 2 14 17600 High 1 1 Yes Yes EXPERIMENT SUMMARY: Number of input scans: 96 Number of scans scheduled: 22 Number of stations: 11 Number of sources input: 7 Number of setup files used: 1 Station summaries: Station Control Scans Scan Hours Tape hours Tapes Passes Readbacks VLBA_SC VLBA 22 3.32 3.47 1 5 6 VLBA_HN VLBA 22 3.32 3.47 1 5 6 VLBA_NL VLBA 22 3.32 3.47 1 5 6 VLBA_FD VLBA 22 3.32 3.47 1 5 6 VLBA_LA VLBA 22 3.32 3.47 1 5 6 VLBA_PT VLBA 22 3.32 3.47 1 5 6 VLBA_KP VLBA 22 3.32 3.47 1 5 6 VLBA_OV VLBA 22 3.32 3.47 1 5 6 VLBA_BR VLBA 22 3.32 3.47 1 5 6 VLBA_MK VLBA 20 3.16 3.29 1 5 6 VLA1 VLA 22 3.32 3.47 1 5 6 Note: Tapes started before scan start time 240 times. See PRESTART and MINPAUSE. They may have been kept running through short scan gaps. The number can be large because each station/scan combination counts. 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 Setup file: bw051.set Matches group y_vp in /home/filehost/cwalker/sched/catalogs/freq.dat In VA mode, only IFs A and D are phased. Setup group: 2 Station: VLA1 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= -277.40 -277.40 -277.40 -277.40 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = A C A C The following frequency sets based on this setup were used. Frequency Set: 2 Setup file default. Used pcal sets: 1 LO sum= 324.49 324.49 332.49 332.49 BBC fr= 601.89 601.89 609.89 609.89 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 VLA specific information: (LO and FI cards not needed. Defaults shown.) VLABAND: VP VLABW: 1111 FEFILTER: 1111 VLAFEAB: 0.00 VLAFECD: 0.00 VLAIF: SYSPIF VLASYNA: -689.90 VLASYNB: -689.90 VLAROT: VLBPROT FLUKEA: 112.50 FLUKEB: 212.50 FLUKESET: 0 Details for VLA IFs: LO Sum Frequency span VLBI FIRSTLO VLA IF A: 322.6000 322.6000- 347.6000 -277.4000 VLA IF B: 322.6000 322.6000- 347.6000 -277.4000 VLA IF C: 322.6000 322.6000- 347.6000 -277.4000 VLA IF D: 322.6000 322.6000- 347.6000 -277.4000 With new digital patch panel, VLA IF = VLB IF. SUMMARY for experiment bw067b Image 3C120 at 90cm - calibrator test Top item is: Start elevation, flag (D=>Down, H=>Below Horizon, t=>Tape Change.) Bottom item is: Start azimuth, flag (D=>Down, H=>Below Horizon, t=>Tape Change.) TYPE top: -=> normal scan, P=>Pointing or Ta; bottom: -=>recording, N=>not recording. Day 214 is Sat 2 Aug 2003 MJD 52853 DAY START UT SOURCE TYPE STATIONS t => tape change STOP UT Sc Hn Nl Fd La Pt Kp Ov Br Mk Y 214 12:59:37 3C147 - 58 79 67 52 54 52 48 47 52 --- 52 214 13:04:36 bw051.set - 6 46 59 47 52 51 49 54 64 --- 51 214 13:07:14 3C120 - 71 52 52 56 51 51 50 42 35 15 51 214 13:27:10 - - 231 192 160 132 134 131 124 122 128 90 131 214 13:27:46 J0503+0203 - 70 49 48 52 47 47 46 38 31 --- 47 214 13:32:46 - - 219 187 158 133 134 131 125 123 127 --- 131 214 13:33:03 J0459+0229 - 69 49 49 53 48 48 47 40 33 14 49 214 13:38:03 - - 224 191 161 135 137 133 127 124 129 92 134 214 13:38:41 J0423-0120 - 59 43 47 55 50 50 51 43 34 22 51 214 13:43:40 - - 235 204 177 154 154 150 144 139 143 100 151 214 13:44:48 J0431+2037 - 67 63 69 73 69 68 67 60 53 28 69 214 13:49:47 - - 281 218 174 123 131 124 114 115 127 77 125 214 13:50:40 3C120 - 62 49 54 62 56 57 57 49 40 25 57 214 14:10:37 - - 247 208 177 150 150 146 138 134 140 93 147 Skipping scan on 3C286 214 14:13:38 3C147 - 56 82 78 63 65 63 60 59 63 23 63 214 14:18:37 - - 344 329 44 38 46 45 44 53 71 43 45 214 14:21:47 3C120 - 55 46 53 64 59 60 60 53 43 32 60 214 14:41:43 - - 253 219 191 166 164 160 151 145 149 96 160 214 14:42:17 J0503+0203 - 56 44 50 60 55 56 56 49 39 29 56 214 14:47:16 - - 246 214 186 163 161 157 150 144 148 99 158 214 14:47:33 J0459+0229 - 54 44 50 61 56 57 58 50 41 31 57 214 14:52:32 - - 249 217 190 167 165 161 153 146 150 99 161 214 14:53:13 J0423-0120 - 43 35 44 58 53 54 57 50 40 39 55 214 14:58:13 - - 251 226 204 188 183 180 174 164 165 109 181 214 14:59:34 J0431+2037 - 49 53 65 79 75 76 78 71 61 46 77 214 15:04:33 - - 281 245 218 200 186 179 163 149 157 80 181 214 15:05:33 3C120 - 45 40 50 64 59 61 63 57 46 42 61 214 15:25:30 - - 260 232 208 191 185 182 174 163 164 101 183 Skipping scan on 3C286 214 15:30:01 3C147 - 48 71 81 70 75 73 69 71 75 36 73 214 15:35:00 - - 328 300 335 372 21 23 26 43 75 42 22 SUMMARY for experiment bw067b Image 3C120 at 90cm - calibrator test Top item is: Start elevation, flag (D=>Down, H=>Below Horizon, t=>Tape Change.) Bottom item is: Start azimuth, flag (D=>Down, H=>Below Horizon, t=>Tape Change.) TYPE top: -=> normal scan, P=>Pointing or Ta; bottom: -=>recording, N=>not recording. Day 214 is Sat 2 Aug 2003 MJD 52853 DAY START UT SOURCE TYPE STATIONS t => tape change STOP UT Sc Hn Nl Fd La Pt Kp Ov Br Mk Y 214 15:39:46 3C120 - 37 35 47 62 58 60 63 58 47 50 60 214 15:59:42 bw051.set - 263 240 219 209 201 199 193 178 177 106 200 214 16:00:20 J0503+0203 - 38 34 45 60 55 57 60 55 44 47 57 214 16:05:19 - - 258 235 214 202 196 193 187 174 174 109 194 214 16:05:37 J0459+0229 - 36 33 44 59 55 57 60 55 44 49 57 214 16:10:36 - - 260 238 217 207 200 197 191 178 177 110 198 214 16:11:12 J0423-0120 - 25 23 36 51 48 50 53 50 40 56 50 214 16:16:11 - - 260 244 227 220 213 211 208 195 191 125 212 214 16:17:22 J0431+2037 - 31 39 53 67 66 68 72 72 62 64 68 214 16:22:22 - - 284 262 246 250 236 236 235 208 195 83 238 214 16:23:11 3C120 - 27 28 41 56 53 56 59 57 47 60 55 214 16:43:08 - - 267 250 232 227 219 217 214 198 193 115 218 Skipping scan on 3C286 214 16:46:15 3C147 - 38 59 71 69 74 73 72 77 87 47 73 214 16:51:14 - - 320 299 303 337 335 340 349 365 47 36 340 SUMMARY for experiment bw067b Image 3C120 at 90cm - calibrator test Top item is: Tape drive, direction, and head index at scan end. 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 214 is Sat 2 Aug 2003 MJD 52853 DAY START UT SOURCE TYPE STATIONS t => tape change STOP UT Sc Hn Nl Fd La Pt Kp Ov Br Mk Y 214 12:59:37 3C147 - 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 --- 1F01 214 13:04:36 bw051.set - 1/00 1/00 1/00 1/00 1/00 1/00 1/00 1/00 1/00 --- 1/00 214 13:07:14 3C120 - 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 214 13:27:10 - - 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/00 1/02 214 13:27:46 J0503+0203 - 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 --- 1F01 214 13:32:46 - - 1/10 1/10 1/10 1/10 1/10 1/10 1/10 1/10 1/10 --- 1/10 214 13:33:03 J0459+0229 - 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 214 13:38:03 - - 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/08 1/12 214 13:38:41 J0423-0120 - 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 1F01 214 13:43:40 - - 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/15 1/10 1/15 214 13:44:48 J0431+2037 - 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1F01 1R02 214 13:49:47 - - 1/17 1/17 1/17 1/17 1/17 1/17 1/17 1/17 1/17 1/12 1/17 214 13:50:40 3C120 - 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 214 14:10:37 - - 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/15 1/16 Skipping scan on 3C286 214 14:13:38 3C147 - 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 1R02 214 14:18:37 - - 1/08 1/08 1/08 1/08 1/08 1/08 1/08 1/08 1/08 1/12 1/08 214 14:21:47 3C120 - 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1R02 1F03 214 14:41:43 - - 1/06 1/06 1/06 1/06 1/06 1/06 1/06 1/06 1/06 1/10 1/06 214 14:42:17 J0503+0203 - 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1R02 1F03 214 14:47:16 - - 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/02 214 14:47:33 J0459+0229 - 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 214 14:52:32 - - 1/04 1/04 1/04 1/04 1/04 1/04 1/04 1/04 1/04 1/00 1/04 214 14:53:13 J0423-0120 - 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 214 14:58:13 - - 1/06 1/06 1/06 1/06 1/06 1/06 1/06 1/06 1/06 1/02 1/06 214 14:59:34 J0431+2037 - 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 1F03 214 15:04:33 - - 1/09 1/09 1/09 1/09 1/09 1/09 1/09 1/09 1/09 1/04 1/09 214 15:05:33 3C120 - 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1F03 1R04 214 15:25:30 - - 1/11 1/11 1/11 1/11 1/11 1/11 1/11 1/11 1/11 1/06 1/11 Skipping scan on 3C286 214 15:30:01 3C147 - 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1F03 1R04 214 15:35:00 - - 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/14 1/16 SUMMARY for experiment bw067b Image 3C120 at 90cm - calibrator test Top item is: Tape drive, direction, and head index at scan end. 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 214 is Sat 2 Aug 2003 MJD 52853 DAY START UT SOURCE TYPE STATIONS t => tape change STOP UT Sc Hn Nl Fd La Pt Kp Ov Br Mk Y 214 15:39:46 3C120 - 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 214 15:59:42 bw051.set - 1/14 1/14 1/14 1/14 1/14 1/14 1/14 1/14 1/14 1/17 1/14 214 16:00:20 J0503+0203 - 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 214 16:05:19 - - 1/06 1/06 1/06 1/06 1/06 1/06 1/06 1/06 1/06 1/10 1/06 214 16:05:37 J0459+0229 - 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 1R04 214 16:10:36 - - 1/04 1/04 1/04 1/04 1/04 1/04 1/04 1/04 1/04 1/08 1/04 214 16:11:12 J0423-0120 - 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1R04 1F05 214 16:16:11 - - 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/02 1/06 1/02 214 16:17:22 J0431+2037 - 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1R04 1F05 214 16:22:22 - - 1/00 1/00 1/00 1/00 1/00 1/00 1/00 1/00 1/00 1/04 1/00 214 16:23:11 3C120 - 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 214 16:43:08 - - 1/03 1/03 1/03 1/03 1/03 1/03 1/03 1/03 1/03 1/02 1/03 Skipping scan on 3C286 214 16:46:15 3C147 - 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 1F05 214 16:51:14 - - 1/11 1/11 1/11 1/11 1/11 1/11 1/11 1/11 1/11 1/06 1/11 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_SC 0.34 VLBA_HN 0.34 VLBA_NL 0.34 VLBA_FD 0.34 VLBA_LA 0.34 VLBA_PT 0.34 VLBA_KP 0.34 VLBA_OV 0.34 VLBA_BR 0.34 VLBA_MK 0.32 VLA1 0.34 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_SC 214 12:59:37 214 16:51:14 VLBA_HN 214 12:59:37 214 16:51:14 VLBA_NL 214 12:59:37 214 16:51:14 VLBA_FD 214 12:59:37 214 16:51:14 VLBA_LA 214 12:59:37 214 16:51:14 VLBA_PT 214 12:59:37 214 16:51:14 VLBA_KP 214 12:59:37 214 16:51:14 VLBA_OV 214 12:59:37 214 16:51:14 VLBA_BR 214 12:59:37 214 16:51:14 VLBA_MK 214 13:07:14 214 16:51:14 VLA1 214 12:59:37 214 16:51:14 SOURCE LIST -- Image 3C120 at 90cm - calibrator test 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) * J0423-0120 04 20 43.539850 * 04 23 15.800727 04 23 25.332364 0420-014 -01 27 28.70002 *-01 20 33.06531 -01 19 55.38684 J0423-01 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report * J0431+2037 04 28 06.860997 * 04 31 03.755600 04 31 14.796086 0428+205 20 31 09.13027 * 20 37 34.25300 20 38 03.21541 J0431+20 /home/filehost/cwalker/sched/catalogs/sources.vlba VLA Calibrator Source List J0433+0521 04 30 31.602066 * 04 33 11.095535 04 33 21.042247 0430+052 05 14 59.61664 * 05 21 15.61942 05 21 48.72940 * 3C120 /home/filehost/cwalker/sched/catalogs/sources.vlba J0433+05 ICRF - Ext.1 Source - 1998 IERS Annual Report * J0459+0229 04 57 15.543484 * 04 59 52.050663 05 00 01.681291 0457+024 02 25 05.71848 * 02 29 31.17631 02 29 58.02112 J0459+02 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report * J0503+0203 05 00 45.174887 * 05 03 21.197178 05 03 30.780723 0500+019 01 58 53.96205 * 02 03 04.67638 02 03 30.68689 J0503+02 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report J0542+4951 05 38 43.517539 * 05 42 36.137917 05 42 50.102437 0538+498 49 49 42.83693 * 49 51 07.23356 49 51 10.80482 * 3C147 /home/filehost/cwalker/sched/catalogs/sources.vlba J0542+49 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) J0423-0120 68.1 J0431+2037 60.6 3C120 63.7 J0459+0229 58.2 J0503+0203 57.6 3C147 49.1 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 J2000 coordinates formatted for possible transfer to the correlator data base: name = 'J0423-0120' ra = 04h23m15.800727s dec = -01d20'33.06531" name = 'J0431+2037' ra = 04h31m03.755600s dec = 20d37'34.25300" name = '3C120' ra = 04h33m11.095535s dec = 05d21'15.61942" name = 'J0459+0229' ra = 04h59m52.050663s dec = 02d29'31.17631" name = 'J0503+0203' ra = 05h03m21.197178s dec = 02d03'04.67638" name = '3C147' ra = 05h42m36.137917s dec = 49d51'07.23356" Code versions: Release version: Release of 02 July 2002 Version of sched code: 5.20 Version of VEX standard: 1.50 Version of VEX code: 0.78 Version of plot code: 1.05 Version of ephemeris code: 1.01 Version of PGPLOT: v5.2.0