COVER INFORMATION Station: VLBA_OV (Code Ov ) Experiment: H2O masers in IRAS16342-3814 Exp. Code: bc184i 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_OV (Code Ov ) 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 12 49 22 5.8 134.9 -3.6 -40.5 0 1 1 0 Stopped 10 45 08 =1622-297 12 51 02 6.1 135.2 -3.6 -40.3 100 S 1 2 10 45 12 J1626-2951 12 51 07 6.1 135.2 -3.6 -40.3 0 1 1 2 10 45 12 10 50 11 =1622-297 12 56 07 6.8 136.1 -3.5 -39.6 299 F 1 6 10 45 35 11 05 37 IRAS16342 13 11 34 0.7 142.0 -3.4 D -38.6 910 1 1 6 11 05 37 11 20 34 --- 13 26 34 2.5 144.4 -3.2 H -36.3 0 F 1 21 11 06 00 11 20 39 IRAS16342 13 26 39 2.5 144.4 -3.2 H -36.2 0 1 1 21 11 20 34 11 35 36 --- 13 41 39 4.2 146.8 -2.9 -33.8 0 F 1 35 11 20 34 11 35 41 IRAS16342 13 41 43 4.2 146.8 -2.9 -33.8 0 1 1 35 11 35 36 11 50 38 --- 13 56 43 5.8 149.3 -2.7 -31.2 898 F 1 50 11 35 36 11 51 37 J1733-1304 13 57 43 18.6 123.8 -3.6 -42.8 28 1 1 50 11 51 37 11 56 37 =1730-130 14 02 43 19.4 124.7 -3.5 -42.2 299 F 1 55 11 52 00 11 57 37 IRAS16342 14 03 43 6.4 150.5 -2.6 -30.0 28 1 1 55 11 57 37 12 12 34 --- 14 18 43 7.9 153.1 -2.3 -27.4 898 F 1 69 11 58 00 12 12 38 IRAS16342 14 18 47 7.9 153.1 -2.3 -27.3 0 1 1 69 12 12 34 12 27 36 --- 14 33 47 9.2 155.8 -2.1 -24.6 898 F 1 84 12 12 34 12 27 40 IRAS16342 14 33 51 9.2 155.8 -2.1 -24.6 0 1 1 84 12 27 36 12 42 38 --- 14 48 51 10.3 158.5 -1.8 -21.8 898 F 1 98 12 27 36 12 42 42 IRAS16342 14 48 56 10.3 158.5 -1.8 -21.8 0 1 1 98 12 42 38 12 57 40 --- 15 03 56 11.4 161.3 -1.6 -19.0 898 F 1 113 12 42 38 12 57 44 IRAS16342 15 04 00 11.4 161.4 -1.6 -18.9 0 1 1 113 12 57 40 13 12 42 --- 15 19 00 12.2 164.2 -1.3 -16.0 898 F 1 127 12 57 40 13 12 46 IRAS16342 15 19 05 12.2 164.2 -1.3 -16.0 0 1 1 127 13 12 42 13 27 44 --- 15 34 05 13.0 167.2 -1.1 -13.0 898 F 1 142 13 12 42 13 27 48 IRAS16342 15 34 09 13.0 167.2 -1.1 -13.0 0 1 1 142 13 27 44 13 42 46 --- 15 49 09 13.6 170.1 -0.8 -10.0 898 F 1 157 13 27 44 Schedule for VLBA_OV (Code Ov ) 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 42 50 IRAS16342 15 49 14 13.6 170.1 -0.8 -10.0 0 1 1 157 13 42 46 13 57 48 --- 16 04 14 14.0 173.1 -0.6 -7.0 898 F 1 171 13 42 46 13 57 52 IRAS16342 16 04 18 14.0 173.2 -0.6 -7.0 0 1 1 171 13 57 48 14 12 49 --- 16 19 18 14.3 176.2 -0.3 -3.9 898 F 1 186 13 57 48 14 12 54 IRAS16342 16 19 22 14.3 176.2 -0.3 -3.9 0 1 1 186 14 12 49 14 27 51 --- 16 34 22 14.4 179.2 -0.1 -0.8 898 F 1 200 14 12 49 14 27 56 IRAS16342 16 34 27 14.4 179.2 -0.1 -0.8 0 1 1 200 14 27 51 14 42 53 --- 16 49 27 14.4 182.3 0.2 2.3 898 F 1 215 14 27 51 14 42 58 IRAS16342 16 49 31 14.4 182.3 0.2 2.3 0 1 1 215 14 42 53 14 57 55 --- 17 04 31 14.2 185.3 0.4 5.4 898 F 1 229 14 42 53 14 58 00 IRAS16342 17 04 36 14.2 185.3 0.4 5.4 0 1 1 229 14 57 55 15 12 57 --- 17 19 36 13.8 188.3 0.7 8.5 898 F 1 244 14 57 55 15 13 02 IRAS16342 17 19 40 13.8 188.4 0.7 8.5 0 1 1 244 15 12 57 15 27 59 --- 17 34 40 13.3 191.3 0.9 11.5 898 F 1 258 15 12 57 15 29 01 J1733-1304 17 35 42 39.7 180.7 0.0 0.6 3 1 1 258 15 29 01 15 34 00 =1730-130 17 40 42 39.7 182.3 0.1 1.9 299 F 1 263 15 29 24 15 35 02 IRAS16342 17 41 44 13.0 192.7 1.1 12.9 3 1 1 263 15 35 02 15 50 00 --- 17 56 44 12.3 195.6 1.3 15.9 898 F 1 278 15 35 25 15 50 04 IRAS16342 17 56 49 12.3 195.7 1.3 15.9 0 1 1 278 15 50 00 16 05 02 --- 18 11 49 11.4 198.5 1.6 18.8 898 F 1 292 15 50 00 16 05 06 IRAS16342 18 11 53 11.4 198.5 1.6 18.8 0 1 1 292 16 05 02 16 20 04 --- 18 26 53 10.4 201.3 1.8 21.7 898 F 1 307 16 05 02 16 20 08 IRAS16342 18 26 57 10.4 201.4 1.8 21.7 0 1 1 307 16 20 04 16 35 05 --- 18 41 57 9.2 204.1 2.1 24.5 898 F 1 321 16 20 04 16 36 07 J1733-1304 18 42 59 37.1 201.4 1.2 17.3 0 1 1 321 16 36 07 16 41 07 =1730-130 18 47 59 36.7 202.8 1.2 18.5 299 F 1 326 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: 8 Station: VLBA_OV 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: 8 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