COVER INFORMATION Station: VLBA_PT (Code Pt ) Experiment: H2O maser proper motions in low-mass YSOs Exp. Code: BM184B Schedule Version: 1.00 Processed by SCHED version: Release of 02 July 2002 PI: Luca Moscadelli Address: Osservatorio Astronomico di Cagliari Loc. Poggio dei Pini, Str. 54, I-09012, Capoterra, Cagliari, Italy Phone: +39 070 6754916 EMAIL: mosca@ca.astro.it (internet) Fax: +39 070 71180222 Phone during observation: Observing mode: 1.3cm VLBA setup Notes: This observation consists of four (4) different epochs, spaced by 20 days. USE THIS "KEY_IN" FILE FOR EACH EPOCH. This is a PHASE REF experiment, DO NOT INTERRUPT SCAN SEQUENCE SPECTRAL LINE observations: Make sure *** PHASE CAL is OFF*** Schedule for VLBA_PT (Code Pt ) Page 2 H2O maser proper motions in low-mass YSOs 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. TPStart: Tape motion start time. Frequencies are LO sum (band edge). 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) ---------------------------------------------------------------------------------------- --- Tue 22 Apr 2003 Day 112 --- Next scan frequencies: 22235.10 22235.10 Next BBC frequencies: 735.10 735.10 Next scan bandwidths: 4.00 4.00 08 12 33 J1751+0939 15 00 00 43.7 111.8 -2.9 -51.1 0 1 1 0 08 12 33 08 15 33 =1749+096 15 03 00 44.3 112.4 -2.8 -50.8 180 F 1 1197 08 16 04 SMM1 15 03 31 31.7 112.9 -3.4 -49.5 0 1 1 1197 08 16 04 08 26 02 --- 15 13 31 33.6 114.9 -3.3 -48.6 598 F 1 5186 08 26 08 S68N 15 13 37 33.6 114.9 -3.3 -48.5 0 1 1 5186 08 26 02 08 36 07 --- 15 23 37 35.5 116.9 -3.1 -47.5 598 F 1 9215 08 36 13 SMM1 15 23 43 35.5 117.0 -3.1 -47.4 0 1 1 9215 08 36 07 08 46 11 --- 15 33 43 37.3 119.1 -2.9 -46.2 598 F 1 13245 08 46 17 S68N 15 33 50 37.3 119.1 -2.9 -46.2 0 1 1 13245 08 46 11 08 56 15 --- 15 43 50 39.1 121.3 -2.8 -44.9 598 F 1 17274 08 56 21 SMM1 15 43 56 39.1 121.4 -2.8 -44.9 0 1 2 17274 08 56 15 09 06 20 --- 15 53 56 40.8 123.7 -2.6 -43.4 598 R 1 13245 09 06 26 S68N 15 54 02 40.9 123.7 -2.6 -43.4 0 1 2 13245 09 06 20 09 16 24 --- 16 04 02 42.6 126.2 -2.4 -41.8 598 R 1 9215 09 16 24 J1642+3948 16 04 02 80.5 51.9 -0.7 -122.2 -82 1 2 9215 09 16 24 09 19 24 =1641+399 16 07 02 80.9 50.0 -0.6 -124.6 98 R 1 8019 09 21 00 SMM1 16 08 38 43.3 127.4 -2.4 -41.1 15 1 2 8019 09 21 00 09 30 58 --- 16 18 38 44.9 130.0 -2.2 -39.3 598 R 1 4030 09 31 04 S68N 16 18 44 45.0 130.0 -2.2 -39.2 0 1 2 4030 09 30 58 09 41 02 --- 16 28 44 46.5 132.8 -2.0 -37.3 598 R 1 0 09 41 08 SMM1 16 28 50 46.5 132.9 -2.0 -37.3 0 1 1 0 09 41 02 09 51 07 --- 16 38 50 48.0 135.9 -1.9 -35.1 598 F 2 4029 09 51 13 S68N 16 38 56 48.0 135.9 -1.9 -35.1 0 1 1 4029 09 51 07 10 01 11 --- 16 48 56 49.4 139.0 -1.7 -32.8 598 F 2 8059 10 01 17 SMM1 16 49 02 49.4 139.1 -1.7 -32.8 0 1 1 8059 10 01 11 10 11 16 --- 16 59 02 50.7 142.4 -1.5 -30.3 598 F 2 12089 Schedule for VLBA_PT (Code Pt ) Page 3 H2O maser proper motions in low-mass YSOs 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. TPStart: Tape motion start time. Frequencies are LO sum (band edge). 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) ---------------------------------------------------------------------------------------- --- Tue 22 Apr 2003 Day 112 --- 10 11 22 S68N 16 59 08 50.8 142.4 -1.5 -30.3 0 1 1 12089 10 11 16 10 21 20 --- 17 09 08 52.0 145.9 -1.3 -27.6 598 F 2 16118 10 23 20 J1751+0939 17 11 08 63.7 157.0 -0.7 -19.1 90 1 1 16118 10 23 20 10 26 19 =1749+096 17 14 08 63.9 158.6 -0.6 -17.8 180 F 2 17315 10 26 49 SMM1 17 14 38 52.6 147.9 -1.3 -26.0 1 1 2 17315 10 26 49 10 36 48 --- 17 24 38 53.6 151.7 -1.1 -23.1 598 R 2 13326 10 36 54 S68N 17 24 45 53.6 151.7 -1.1 -23.0 0 1 2 13326 10 36 48 10 46 52 --- 17 34 45 54.5 155.7 -0.9 -19.9 598 R 2 9296 10 46 58 SMM1 17 34 51 54.5 155.8 -0.9 -19.8 0 1 2 9296 10 46 52 10 56 57 --- 17 44 51 55.3 159.9 -0.8 -16.5 598 R 2 5267 10 57 03 S68N 17 44 57 55.3 159.9 -0.8 -16.5 0 1 2 5267 10 56 57 11 07 01 --- 17 54 57 56.0 164.2 -0.6 -13.0 598 R 2 1237 11 07 07 SMM1 17 55 03 56.0 164.3 -0.6 -13.0 0 1 1 1237 11 07 01 11 17 06 --- 18 05 03 56.4 168.7 -0.4 -9.3 598 F 3 2792 11 17 12 S68N 18 05 09 56.5 168.7 -0.4 -9.3 0 1 1 2792 11 17 06 11 27 10 --- 18 15 09 56.8 173.2 -0.2 -5.6 598 F 3 6822 11 27 40 J1751+0939 18 15 39 64.7 193.9 0.4 11.7 8 1 1 6822 11 27 40 11 30 40 =1749+096 18 18 39 64.6 195.6 0.4 13.1 180 F 3 8019 11 31 09 SMM1 18 19 09 56.9 175.0 -0.2 -4.1 8 1 1 8019 11 31 09 11 41 08 --- 18 29 09 57.0 179.6 0.0 -0.3 598 F 3 12008 11 41 14 S68N 18 29 15 57.0 179.7 0.0 -0.3 0 1 1 12008 11 41 08 11 51 12 --- 18 39 15 56.9 184.3 0.2 3.5 598 F 3 16037 11 51 18 SMM1 18 39 21 56.9 184.3 0.2 3.5 0 1 2 16037 11 51 12 12 01 17 --- 18 49 21 56.6 188.8 0.3 7.3 598 R 3 15133 12 01 23 S68N 18 49 27 56.7 188.9 0.3 7.3 0 1 2 15133 12 01 17 12 11 21 --- 18 59 27 56.3 193.4 0.5 11.0 598 R 3 11104 12 11 27 SMM1 18 59 33 56.2 193.4 0.5 11.0 0 1 2 11104 12 11 21 12 21 25 --- 19 09 33 55.7 197.7 0.7 14.6 598 R 3 7074 Schedule for VLBA_PT (Code Pt ) Page 4 H2O maser proper motions in low-mass YSOs 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. TPStart: Tape motion start time. Frequencies are LO sum (band edge). 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) ---------------------------------------------------------------------------------------- --- Tue 22 Apr 2003 Day 112 --- 12 21 31 S68N 19 09 39 55.7 197.8 0.7 14.6 0 1 2 7074 12 21 25 12 31 30 --- 19 19 39 55.0 202.0 0.8 18.0 598 R 3 3044 12 33 30 J1751+0939 19 21 39 57.9 225.2 1.5 36.5 98 1 2 3044 12 33 30 12 36 29 =1749+096 19 24 39 57.4 226.3 1.5 37.3 180 R 3 1848 12 37 00 SMM1 19 25 10 54.5 204.3 0.9 19.8 10 1 1 1848 12 37 00 12 46 58 --- 19 35 10 53.6 208.2 1.1 23.0 598 F 4 2141 12 47 04 S68N 19 35 16 53.6 208.3 1.1 23.1 0 1 1 2141 12 46 58 12 57 02 --- 19 45 16 52.6 212.1 1.3 26.0 598 F 4 6171 12 57 08 SMM1 19 45 22 52.6 212.1 1.3 26.0 0 1 1 6171 12 57 02 13 07 07 --- 19 55 22 51.4 215.7 1.4 28.8 598 F 4 10200 13 07 13 S68N 19 55 28 51.4 215.7 1.4 28.9 0 1 1 10200 13 07 07 13 17 11 --- 20 05 28 50.2 219.2 1.6 31.5 598 F 4 14230 13 17 17 SMM1 20 05 34 50.1 219.2 1.6 31.5 0 1 2 14230 13 17 11 13 27 16 --- 20 15 34 48.8 222.4 1.8 33.9 598 R 4 16940 13 27 22 S68N 20 15 40 48.8 222.5 1.8 33.9 0 1 2 16940 13 27 16 13 37 20 --- 20 25 40 47.3 225.5 1.9 36.1 598 R 4 12911 13 39 12 J2005+7752 20 27 33 46.4 358.3 0.4 173.4 18 1 2 12911 13 39 12 13 42 12 =2007+777 20 30 33 46.3 358.1 0.4 172.5 180 R 4 11714 13 44 02 SMM1 20 32 24 46.3 227.5 2.0 37.5 18 1 2 11714 13 44 02 13 55 01 --- 20 43 24 44.6 230.5 2.2 39.6 658 R 4 7326 13 55 07 S68N 20 43 30 44.6 230.6 2.2 39.7 0 1 2 7326 13 55 01 14 06 05 --- 20 54 30 42.8 233.5 2.4 41.6 658 R 4 2898 14 06 11 SMM1 20 54 36 42.8 233.5 2.4 41.6 0 1 3 2898 14 06 05 14 17 09 --- 21 05 36 40.9 236.2 2.6 43.4 658 F 1 1531 14 17 15 S68N 21 05 42 40.9 236.2 2.6 43.4 0 1 3 1531 14 17 09 14 28 13 --- 21 16 42 39.0 238.8 2.8 45.0 658 F 1 5959 14 28 20 SMM1 21 16 48 39.0 238.8 2.8 45.0 0 1 3 5959 14 28 13 14 39 18 --- 21 27 48 37.0 241.3 3.0 46.4 658 F 1 10388 Schedule for VLBA_PT (Code Pt ) Page 5 H2O maser proper motions in low-mass YSOs 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. TPStart: Tape motion start time. Frequencies are LO sum (band edge). 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) ---------------------------------------------------------------------------------------- --- Tue 22 Apr 2003 Day 112 --- 14 39 24 S68N 21 27 54 37.0 241.3 3.0 46.5 0 1 3 10388 14 39 18 14 50 22 --- 21 38 54 35.0 243.6 3.1 47.7 658 F 1 14816 14 50 28 SMM1 21 39 00 35.0 243.6 3.2 47.7 0 1 4 14816 14 50 22 15 01 26 --- 21 50 00 32.9 245.8 3.3 48.9 658 R 1 15956 15 01 32 S68N 21 50 06 32.9 245.9 3.3 48.9 0 1 4 15956 15 01 26 15 12 31 --- 22 01 06 30.8 248.0 3.5 50.0 658 R 1 11527 15 14 30 J2005+7752 22 03 06 44.6 351.7 2.0 145.3 45 1 4 11527 15 14 30 15 17 30 =2007+777 22 06 06 44.5 351.5 2.0 144.4 180 R 1 10330 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bm184.set Matches group v1cm_b3 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA_PT Total bit rate: 32 Format: VLBA1:2 Bits per sample: 2 Sample rate: 8.000 Number of channels: 2 Passes/head pos: 4 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= 21500.00 21500.00 Net SB= U U Pol. = RCP LCP BBC = 1 2 BBC SB= U U IF = B 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: 1 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 1 LO sum= 22235.10 22235.10 BBC fr= 735.10 735.10 Bandwd= 4.000 4.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = OFF PCALXB1= S1 S2 OFF OFF OFF OFF OFF OFF PCALXB2= M1 M2 OFF OFF 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, 10 track2= 18, 26 track3= 3, 11 track4= 19, 27 barrel=roll_auto SOURCE LIST -- H2O maser proper motions in low-mass YSOs 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) * SMM1 18 27 17.459056 * 18 29 49.814000 18 29 59.477257 01 13 15.94881 * 01 15 20.54000 01 15 16.40867 From catalog imbedded in main SCHED input file. first target source * S68N 18 27 15.790528 * 18 29 48.118000 18 29 57.779747 01 14 41.38044 * 01 16 45.85000 01 16 41.70420 From catalog imbedded in main SCHED input file. second target source * J1751+0939 17 49 10.387930 * 17 51 32.818573 17 51 42.086514 1749+096 09 39 42.82596 * 09 39 00.72851 09 38 44.41497 1749+096 From catalog imbedded in main SCHED input file. J1751+09 ICRF - Ext.1 Source - 1998 IERS Annual Report * J1642+3948 16 41 17.606214 * 16 42 58.809952 16 43 06.263845 1641+399 39 54 10.81489 * 39 48 36.99395 39 48 00.00730 3C345 From catalog imbedded in main SCHED input file. 3C345 ICRF - Ext.1 Source - 1998 IERS Annual Report J1642+39 * J2005+7752 20 07 20.430192 * 20 05 30.998520 20 05 23.731619 2007+777 77 43 58.12308 * 77 52 43.24761 77 52 50.31676 2007+777 From catalog imbedded in main SCHED input file. J2005+77 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) SMM1 111.5 S68N 111.5 J1751+0939 118.3 J1642+3948 115.6 J2005+7752 77.8 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