COVER INFORMATION Station: VLBA_PT (Code Pt ) Experiment: H2O masers in IRAS16342-3814 Exp. Code: bc184b Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: Mark Claussen Address: National Radio Astronomy Observatory P. O. Box O Socorro, New Mexico, 87801 U.S.A. Phone: 505 835 7284 EMAIL: mclausse@aoc.nrao.edu Fax: 505 835 7027 Phone during observation: 505 835 7284 Observing mode: 1.3 cm VLBA non-standard correlator setup Notes: Schedule for VLBA_PT (Code Pt ) Page 2 H2O masers in IRAS16342-3814 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. For disks, the footages are really the GBytes 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 ---------------------------------------------------------------------------------------- --- Mon 7 Apr 2008 Day 98 --- Next scan frequencies: 22220.27 22226.80 22233.25 22239.70 Next BBC frequencies: 720.27 726.80 733.25 739.70 Next scan bandwidths: 8.00 8.00 8.00 8.00 07 38 40 J1626-2951 13 30 00 13.5 141.6 -2.9 -36.3 0 1 1 0 Stopped 07 40 20 =1622-297 13 31 40 13.7 141.9 -2.9 -36.0 100 S 1 2 07 40 24 J1626-2951 13 31 44 13.7 141.9 -2.9 -36.0 0 1 1 2 07 40 24 07 45 24 =1622-297 13 36 44 14.3 142.8 -2.8 -35.2 299 F 1 6 07 40 47 07 45 47 IRAS16342 13 37 08 6.1 145.9 -3.0 -36.2 1 1 1 6 07 45 47 08 00 45 --- 13 52 08 7.8 148.3 -2.8 -33.6 898 F 1 21 07 46 10 08 00 49 IRAS16342 13 52 12 7.8 148.4 -2.8 -33.5 0 1 1 21 08 00 45 08 15 47 --- 14 07 12 9.3 150.9 -2.5 -30.8 898 F 1 35 08 00 45 08 15 51 IRAS16342 14 07 17 9.4 150.9 -2.5 -30.8 0 1 1 35 08 15 47 08 30 48 --- 14 22 17 10.8 153.5 -2.3 -28.0 898 F 1 50 08 15 47 08 30 53 IRAS16342 14 22 21 10.8 153.5 -2.3 -28.0 0 1 1 50 08 30 48 08 45 50 --- 14 37 21 12.1 156.2 -2.0 -25.2 898 F 1 65 08 30 48 08 46 50 J1733-1304 14 38 20 26.9 130.9 -2.9 -39.9 24 1 1 65 08 46 50 08 51 49 =1730-130 14 43 20 27.7 131.9 -2.8 -39.1 299 F 1 69 08 47 13 08 52 49 IRAS16342 14 44 21 12.7 157.5 -1.9 -23.8 24 1 1 69 08 52 49 09 07 46 --- 14 59 21 13.8 160.3 -1.6 -20.8 898 F 1 84 08 53 12 09 07 51 IRAS16342 14 59 25 13.8 160.3 -1.6 -20.8 0 1 1 84 09 07 46 09 22 48 --- 15 14 25 14.8 163.1 -1.4 -17.8 898 F 1 98 09 07 46 09 22 53 IRAS16342 15 14 29 14.8 163.1 -1.4 -17.8 0 1 1 98 09 22 48 09 37 50 --- 15 29 29 15.6 166.1 -1.1 -14.7 898 F 1 113 09 22 48 09 37 54 IRAS16342 15 29 34 15.6 166.1 -1.1 -14.7 0 1 1 113 09 37 50 09 52 52 --- 15 44 34 16.3 169.1 -0.9 -11.5 898 F 1 127 09 37 50 09 52 56 IRAS16342 15 44 38 16.3 169.1 -0.9 -11.5 0 1 1 127 09 52 52 10 07 54 --- 15 59 38 16.8 172.1 -0.6 -8.3 898 F 1 142 09 52 52 10 07 58 IRAS16342 15 59 43 16.8 172.1 -0.6 -8.3 0 1 1 142 10 07 54 10 22 56 --- 16 14 43 17.1 175.2 -0.4 -5.1 898 F 1 157 10 07 54 Schedule for VLBA_PT (Code Pt ) Page 3 H2O masers in IRAS16342-3814 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. For disks, the footages are really the GBytes 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 ---------------------------------------------------------------------------------------- --- Mon 7 Apr 2008 Day 98 --- 10 23 00 IRAS16342 16 14 47 17.1 175.2 -0.4 -5.1 0 1 1 157 10 22 56 10 37 58 --- 16 29 47 17.3 178.3 -0.1 -1.8 898 F 1 171 10 22 56 10 38 02 IRAS16342 16 29 51 17.3 178.3 -0.1 -1.8 0 1 1 171 10 37 58 10 53 00 --- 16 44 51 17.3 181.4 0.1 1.4 898 F 1 186 10 37 58 10 53 04 IRAS16342 16 44 56 17.3 181.4 0.1 1.4 0 1 1 186 10 53 00 11 08 02 --- 16 59 56 17.2 184.4 0.4 4.7 898 F 1 200 10 53 00 11 08 06 IRAS16342 17 00 00 17.2 184.5 0.4 4.7 0 1 1 200 11 08 02 11 23 04 --- 17 15 00 16.8 187.5 0.6 7.9 898 F 1 215 11 08 02 11 23 08 IRAS16342 17 15 05 16.8 187.5 0.6 7.9 0 1 1 215 11 23 04 11 38 06 --- 17 30 05 16.4 190.6 0.9 11.1 898 F 1 229 11 23 04 11 38 10 IRAS16342 17 30 09 16.4 190.6 0.9 11.1 0 1 1 229 11 38 06 11 53 08 --- 17 45 09 15.7 193.6 1.1 14.3 898 F 1 244 11 38 06 11 53 12 IRAS16342 17 45 13 15.7 193.6 1.1 14.3 0 1 1 244 11 53 08 12 08 09 --- 18 00 13 14.9 196.5 1.4 17.4 898 F 1 258 11 53 08 12 08 14 IRAS16342 18 00 18 14.9 196.5 1.4 17.4 0 1 1 258 12 08 09 12 23 11 --- 18 15 18 13.9 199.4 1.6 20.5 898 F 1 273 12 08 09 12 24 13 J1733-1304 18 16 20 41.5 194.0 0.7 11.8 1 1 1 273 12 24 13 12 29 12 =1730-130 18 21 20 41.3 195.6 0.8 13.2 299 F 1 278 12 24 36 12 30 15 IRAS16342 18 22 22 13.4 200.7 1.7 21.9 1 1 1 278 12 30 15 12 45 12 --- 18 37 22 12.3 203.5 2.0 24.8 898 F 1 292 12 30 38 12 45 16 IRAS16342 18 37 26 12.3 203.5 2.0 24.8 0 1 1 292 12 45 12 13 00 14 --- 18 52 26 11.0 206.2 2.2 27.7 898 F 1 307 12 45 12 13 00 18 IRAS16342 18 52 31 11.0 206.2 2.2 27.7 0 1 1 307 13 00 14 13 15 16 --- 19 07 31 9.5 208.8 2.5 30.5 898 F 1 321 13 00 14 13 15 20 IRAS16342 19 07 35 9.5 208.8 2.5 30.5 0 1 1 321 13 15 16 13 30 18 --- 19 22 35 8.0 211.4 2.7 33.2 898 F 1 336 13 15 16 13 31 20 J1733-1304 19 23 37 35.9 213.7 1.8 28.1 0 1 1 336 13 31 20 13 36 19 =1730-130 19 28 37 35.3 215.1 1.9 29.2 299 F 1 341 13 31 43 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bc184.set Matches group v1cm_b3 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 6 Station: VLBA_PT Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Speedup factor: 2.00 Disk used to record data. 1st LO= 21500.00 21500.00 21500.00 21500.00 Net SB= U U U U Pol. = LCP LCP LCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = D D D D VLBA FE= omit 1cm omit 1cm VLBA Synth= 9.1 15.4 12.4 The following frequency sets based on this setup were used. Frequency Set: 6 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 1 LO sum= 22220.27 22226.80 22233.25 22239.70 BBC fr= 720.27 726.80 733.25 739.70 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 = OFF PCALXB1= S1 S2 S3 S4 OFF OFF OFF OFF PCALXB2= M1 M2 M3 M4 OFF OFF OFF OFF PCALFR1= 0 0 0 0 0 0 0 0 PCALFR2= 0 0 0 0 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_off SOURCE LIST -- H2O masers in IRAS16342-3814 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) * IRAS16342 16 34 16.977557 * 16 37 40.003000 16 38 15.166071 0.00 -38 14 19.14315 *-38 20 18.47000 -38 21 22.20294 0.00 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: 176.00 88.00 1.00 -86.00 5.485 scan hours, 134.381 baseline hours above horizon. * J1626-2951 16 22 57.242941 * 16 26 06.020847 16 26 38.757846 0.00 1622-297 -29 44 41.40057 *-29 51 26.97131 -29 52 41.24367 0.00 J1626-29 From catalog imbedded in main SCHED input file. USNO - Ref Frame 1998-6, Eubanks June 1998 Doppler based on other sources. 0.083 scan hours, 2.327 baseline hours above horizon. * J1733-1304 17 30 13.535185 * 17 33 02.705782 17 33 31.789612 0.00 1730-130 -13 02 45.83980 *-13 04 49.54828 -13 05 20.89665 0.00 J1733-13 From catalog imbedded in main SCHED input file. NRAO530 USNO - Ref Frame 1998-6, Eubanks June 1998 Doppler based on other sources. 0.249 scan hours, 8.311 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) IRAS16342 123.0 J1626-2951 127.8 J1733-1304 114.1 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