COVER INFORMATION Station: VLBA_FD (Code Fd ) Experiment: H2O masers in IRAS16342-3814 Exp. Code: bc184h 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_FD (Code Fd ) 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 ---------------------------------------------------------------------------------------- --- Wed 20 Feb 2008 Day 51 --- Next scan frequencies: 22220.60 22227.12 22233.58 22240.03 Next BBC frequencies: 720.60 727.12 733.58 740.03 Next scan bandwidths: 8.00 8.00 8.00 8.00 10 43 28 J1626-2951 13 46 42 18.5 144.0 -2.7 -35.7 0 1 1 0 Stopped 10 45 08 =1622-297 13 48 22 18.7 144.3 -2.6 -35.4 100 S 1 2 10 45 12 J1626-2951 13 48 26 18.8 144.3 -2.6 -35.3 0 1 1 2 10 45 12 10 50 11 =1622-297 13 53 26 19.4 145.3 -2.6 -34.4 299 F 1 6 10 45 35 10 50 35 IRAS16342 13 53 50 11.1 148.3 -2.7 -35.2 1 1 1 6 10 50 35 11 05 32 --- 14 08 50 12.7 150.8 -2.5 -32.4 898 F 1 21 10 50 58 11 05 37 IRAS16342 14 08 54 12.7 150.8 -2.5 -32.3 0 1 1 21 11 05 32 11 20 34 --- 14 23 54 14.2 153.4 -2.2 -29.4 898 F 1 35 11 05 32 11 20 39 IRAS16342 14 23 59 14.2 153.4 -2.2 -29.4 0 1 1 35 11 20 34 11 35 36 --- 14 38 59 15.6 156.1 -2.0 -26.4 898 F 1 50 11 20 34 11 35 41 IRAS16342 14 39 03 15.6 156.1 -2.0 -26.4 0 1 1 50 11 35 36 11 50 38 --- 14 54 03 16.9 158.9 -1.7 -23.3 898 F 1 65 11 35 36 11 51 37 J1733-1304 14 55 02 32.0 132.9 -2.6 -40.3 23 1 1 65 11 51 37 11 56 37 =1730-130 15 00 02 32.8 134.0 -2.6 -39.4 299 F 1 69 11 52 00 11 57 37 IRAS16342 15 01 03 17.4 160.2 -1.6 -21.8 23 1 1 69 11 57 37 12 12 34 --- 15 16 03 18.4 163.1 -1.4 -18.6 898 F 1 84 11 58 00 12 12 38 IRAS16342 15 16 07 18.4 163.2 -1.4 -18.5 0 1 1 84 12 12 34 12 27 36 --- 15 31 07 19.3 166.1 -1.1 -15.3 898 F 1 98 12 12 34 12 27 40 IRAS16342 15 31 11 19.3 166.1 -1.1 -15.2 0 1 1 98 12 27 36 12 42 38 --- 15 46 11 20.0 169.2 -0.9 -11.9 898 F 1 113 12 27 36 12 42 42 IRAS16342 15 46 16 20.0 169.2 -0.9 -11.9 0 1 1 113 12 42 38 12 57 40 --- 16 01 16 20.5 172.3 -0.6 -8.5 898 F 1 127 12 42 38 12 57 44 IRAS16342 16 01 20 20.5 172.3 -0.6 -8.5 0 1 1 127 12 57 40 13 12 42 --- 16 16 20 20.8 175.4 -0.4 -5.0 898 F 1 142 12 57 40 13 12 46 IRAS16342 16 16 24 20.8 175.4 -0.4 -5.0 0 1 1 142 13 12 42 13 27 44 --- 16 31 24 21.0 178.6 -0.1 -1.6 898 F 1 157 13 12 42 Schedule for VLBA_FD (Code Fd ) 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 ---------------------------------------------------------------------------------------- --- Wed 20 Feb 2008 Day 51 --- 13 27 48 IRAS16342 16 31 29 21.0 178.6 -0.1 -1.6 0 1 1 157 13 27 44 13 42 46 --- 16 46 29 21.0 181.7 0.1 1.9 898 F 1 171 13 27 44 13 42 50 IRAS16342 16 46 33 21.0 181.7 0.1 1.9 0 1 1 171 13 42 46 13 57 48 --- 17 01 33 20.8 184.9 0.4 5.4 898 F 1 186 13 42 46 13 57 52 IRAS16342 17 01 38 20.8 184.9 0.4 5.4 0 1 1 186 13 57 48 14 12 49 --- 17 16 38 20.4 188.0 0.6 8.8 898 F 1 200 13 57 48 14 12 54 IRAS16342 17 16 42 20.4 188.0 0.6 8.8 0 1 1 200 14 12 49 14 27 51 --- 17 31 42 19.9 191.1 0.9 12.2 898 F 1 215 14 12 49 14 27 56 IRAS16342 17 31 46 19.9 191.1 0.9 12.2 0 1 1 215 14 27 51 14 42 53 --- 17 46 46 19.2 194.2 1.1 15.6 898 F 1 229 14 27 51 14 42 58 IRAS16342 17 46 51 19.2 194.2 1.1 15.6 0 1 1 229 14 42 53 14 57 55 --- 18 01 51 18.3 197.1 1.4 18.9 898 F 1 244 14 42 53 14 58 00 IRAS16342 18 01 55 18.3 197.2 1.4 18.9 0 1 1 244 14 57 55 15 12 57 --- 18 16 55 17.3 200.0 1.6 22.1 898 F 1 258 14 57 55 15 13 02 IRAS16342 18 17 00 17.3 200.1 1.6 22.1 0 1 1 258 15 12 57 15 27 59 --- 18 32 00 16.1 202.9 1.9 25.2 898 F 1 273 15 12 57 15 29 01 J1733-1304 18 33 02 44.0 200.3 1.0 17.9 0 1 1 273 15 29 01 15 34 00 =1730-130 18 38 02 43.6 201.9 1.1 19.3 299 F 1 278 15 29 24 15 35 02 IRAS16342 18 39 04 15.5 204.2 2.0 26.7 0 1 1 278 15 35 02 15 50 00 --- 18 54 04 14.1 206.8 2.3 29.7 898 F 1 292 15 35 25 15 50 04 IRAS16342 18 54 08 14.1 206.9 2.3 29.7 0 1 1 292 15 50 00 16 05 02 --- 19 09 08 12.6 209.4 2.5 32.6 898 F 1 307 15 50 00 16 05 06 IRAS16342 19 09 13 12.6 209.5 2.5 32.7 0 1 1 307 16 05 02 16 20 04 --- 19 24 13 10.9 211.9 2.8 35.5 898 F 1 321 16 05 02 16 20 08 IRAS16342 19 24 17 10.9 212.0 2.8 35.5 0 1 1 321 16 20 04 16 35 05 --- 19 39 17 9.1 214.3 3.0 38.2 898 F 1 336 16 20 04 16 36 07 J1733-1304 19 40 19 36.7 219.7 2.1 34.3 1 1 1 336 16 36 07 16 41 07 =1730-130 19 45 19 36.0 220.9 2.2 35.3 299 F 1 341 16 36 30 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 /users/cwalker/sched/catalogs/freq.dat Setup group: 4 Station: VLBA_FD 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: 4 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 1 LO sum= 22220.60 22227.12 22233.58 22240.03 BBC fr= 720.60 727.12 733.58 740.03 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 16.933259 * 16 37 39.958000 16 38 13.415996 0.00 -38 14 17.83511 *-38 20 17.16500 -38 21 17.14821 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 37.224886 0.00 1622-297 -29 44 41.40057 *-29 51 26.97131 -29 52 37.48841 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 30.368233 0.00 1730-130 -13 02 45.83980 *-13 04 49.54828 -13 05 20.03083 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 78.3 J1626-2951 81.7 J1733-1304 68.2 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