COVER INFORMATION Station: VLBA_HN (Code Hn ) 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_HN (Code Hn ) 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 17 24 32 56.2 167.9 -0.5 -9.0 0 1 1 0 08 12 33 08 15 33 =1749+096 17 27 32 56.3 169.2 -0.4 -8.0 180 F 1 1197 08 16 04 SMM1 17 28 03 46.1 157.4 -1.0 -16.4 5 1 1 1197 08 16 04 08 26 02 --- 17 38 03 46.7 160.9 -0.9 -13.9 598 F 1 5186 08 26 08 S68N 17 38 09 46.8 160.9 -0.9 -13.9 0 1 1 5186 08 26 02 08 36 07 --- 17 48 09 47.3 164.5 -0.7 -11.3 598 F 1 9215 08 36 13 SMM1 17 48 15 47.3 164.5 -0.7 -11.3 0 1 1 9215 08 36 07 08 46 11 --- 17 58 15 47.7 168.2 -0.5 -8.6 598 F 1 13245 08 46 17 S68N 17 58 21 47.7 168.2 -0.5 -8.6 0 1 1 13245 08 46 11 08 56 15 --- 18 08 21 48.1 171.9 -0.4 -5.9 598 F 1 17274 08 56 21 SMM1 18 08 27 48.0 171.9 -0.4 -5.9 0 1 2 17274 08 56 15 09 06 20 --- 18 18 27 48.2 175.7 -0.2 -3.2 598 R 1 13245 09 06 26 S68N 18 18 34 48.3 175.7 -0.2 -3.1 0 1 2 13245 09 06 20 09 16 24 --- 18 28 34 48.3 179.5 0.0 -0.4 598 R 1 9215 09 16 24 J1642+3948 18 28 34 70.1 270.0 1.8 72.4 -66 1 2 9215 09 16 24 09 19 24 =1641+399 18 31 34 69.5 270.5 1.8 72.4 113 R 1 8019 09 21 00 SMM1 18 33 10 48.3 181.2 0.1 0.9 30 1 2 8019 09 21 00 09 30 58 --- 18 43 10 48.2 184.9 0.2 3.6 598 R 1 4030 09 31 04 S68N 18 43 16 48.2 185.0 0.2 3.7 0 1 2 4030 09 30 58 09 41 02 --- 18 53 16 48.0 188.7 0.4 6.4 598 R 1 0 09 41 08 SMM1 18 53 22 48.0 188.7 0.4 6.4 0 1 1 0 09 41 02 09 51 07 --- 19 03 22 47.7 192.4 0.6 9.1 598 F 2 4029 09 51 13 S68N 19 03 28 47.7 192.5 0.6 9.1 0 1 1 4029 09 51 07 10 01 11 --- 19 13 28 47.2 196.1 0.7 11.7 598 F 2 8059 10 01 17 SMM1 19 13 34 47.2 196.1 0.7 11.7 0 1 1 8059 10 01 11 10 11 16 --- 19 23 34 46.6 199.7 0.9 14.3 598 F 2 12089 Schedule for VLBA_HN (Code Hn ) 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 19 23 40 46.6 199.8 0.9 14.3 0 1 1 12089 10 11 16 10 21 20 --- 19 33 40 46.0 203.3 1.1 16.8 598 F 2 16118 10 23 20 J1751+0939 19 35 40 49.7 221.9 1.7 29.8 101 1 1 16118 10 23 20 10 26 19 =1749+096 19 38 40 49.4 222.9 1.8 30.4 180 F 2 17315 10 26 49 SMM1 19 39 10 45.5 205.1 1.2 18.1 12 1 2 17315 10 26 49 10 36 48 --- 19 49 10 44.7 208.5 1.3 20.4 598 R 2 13326 10 36 54 S68N 19 49 16 44.7 208.5 1.3 20.5 0 1 2 13326 10 36 48 10 46 52 --- 19 59 16 43.8 211.8 1.5 22.7 598 R 2 9296 10 46 58 SMM1 19 59 22 43.8 211.8 1.5 22.7 0 1 2 9296 10 46 52 10 56 57 --- 20 09 22 42.8 214.9 1.7 24.8 598 R 2 5267 10 57 03 S68N 20 09 28 42.8 215.0 1.7 24.8 0 1 2 5267 10 56 57 11 07 01 --- 20 19 28 41.7 218.0 1.8 26.8 598 R 2 1237 11 07 07 SMM1 20 19 35 41.7 218.0 1.8 26.8 0 1 1 1237 11 07 01 11 17 06 --- 20 29 35 40.5 220.9 2.0 28.7 598 F 3 2792 11 17 12 S68N 20 29 41 40.5 221.0 2.0 28.7 0 1 1 2792 11 17 06 11 27 10 --- 20 39 41 39.3 223.8 2.2 30.5 598 F 3 6822 11 27 40 J1751+0939 20 40 11 40.5 240.4 2.8 40.2 13 1 1 6822 11 27 40 11 30 40 =1749+096 20 43 11 40.0 241.2 2.9 40.6 180 F 3 8019 11 31 09 SMM1 20 43 41 38.7 224.9 2.2 31.1 13 1 1 8019 11 31 09 11 41 08 --- 20 53 41 37.4 227.6 2.4 32.7 598 F 3 12008 11 41 14 S68N 20 53 47 37.4 227.7 2.4 32.8 0 1 1 12008 11 41 08 11 51 12 --- 21 03 47 36.0 230.3 2.6 34.3 598 F 3 16037 11 51 18 SMM1 21 03 53 36.0 230.3 2.6 34.3 0 1 2 16037 11 51 12 12 01 17 --- 21 13 53 34.6 232.8 2.7 35.7 598 R 3 15133 12 01 23 S68N 21 13 59 34.6 232.8 2.7 35.7 0 1 2 15133 12 01 17 12 11 21 --- 21 23 59 33.1 235.2 2.9 37.0 598 R 3 11104 12 11 27 SMM1 21 24 05 33.1 235.2 2.9 37.0 0 1 2 11104 12 11 21 12 21 25 --- 21 34 05 31.5 237.6 3.1 38.2 598 R 3 7074 Schedule for VLBA_HN (Code Hn ) 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 21 34 11 31.5 237.6 3.1 38.2 0 1 2 7074 12 21 25 12 31 30 --- 21 44 11 30.0 239.9 3.2 39.3 598 R 3 3044 12 33 30 J1751+0939 21 46 11 29.3 254.9 3.9 45.8 104 1 2 3044 12 33 30 12 36 29 =1749+096 21 49 11 28.8 255.5 4.0 46.0 180 R 3 1848 12 37 00 SMM1 21 49 42 29.1 241.1 3.3 39.9 15 1 1 1848 12 37 00 12 46 58 --- 21 59 42 27.5 243.3 3.5 40.8 598 F 4 2141 12 47 04 S68N 21 59 48 27.5 243.3 3.5 40.9 0 1 1 2141 12 46 58 12 57 02 --- 22 09 48 25.8 245.4 3.7 41.8 598 F 4 6171 12 57 08 SMM1 22 09 54 25.8 245.4 3.7 41.7 0 1 1 6171 12 57 02 13 07 07 --- 22 19 54 24.1 247.4 3.8 42.6 598 F 4 10200 13 07 13 S68N 22 20 00 24.1 247.5 3.8 42.6 0 1 1 10200 13 07 07 13 17 11 --- 22 30 00 22.4 249.5 4.0 43.3 598 F 4 14230 13 17 17 SMM1 22 30 06 22.4 249.5 4.0 43.3 0 1 2 14230 13 17 11 13 27 16 --- 22 40 06 20.6 251.4 4.2 44.0 598 R 4 16940 13 27 22 S68N 22 40 12 20.6 251.5 4.2 44.0 0 1 2 16940 13 27 16 13 37 20 --- 22 50 12 18.9 253.4 4.3 44.6 598 R 4 12911 13 39 12 J2005+7752 22 52 05 51.3 347.1 2.8 128.8 41 1 2 12911 13 39 12 13 42 12 =2007+777 22 55 05 51.2 346.9 2.8 128.0 180 R 4 11714 13 44 02 SMM1 22 56 56 17.7 254.6 4.4 44.9 38 1 2 11714 13 44 02 13 55 01 --- 23 07 56 15.8 256.6 4.6 45.4 658 R 4 7326 13 55 07 S68N 23 08 02 15.7 256.7 4.6 45.4 0 1 2 7326 13 55 01 14 06 05 --- 23 19 02 13.8 258.7 4.8 45.9 658 R 4 2898 14 06 11 SMM1 23 19 08 13.7 258.6 4.8 45.9 0 1 3 2898 14 06 05 14 17 09 --- 23 30 08 11.8 260.6 5.0 46.3 658 F 1 1531 14 17 15 S68N 23 30 14 11.8 260.6 5.0 46.3 0 1 3 1531 14 17 09 14 28 13 --- 23 41 14 9.8 262.6 5.2 46.6 658 F 1 5959 14 28 20 SMM1 23 41 20 9.7 262.6 5.2 46.6 0 1 3 5959 14 28 13 14 39 18 --- 23 52 20 7.7 264.5 5.4 46.8 658 F 1 10388 Schedule for VLBA_HN (Code Hn ) 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 23 52 26 7.7 264.5 5.4 46.8 0 1 3 10388 14 39 18 14 50 22 --- 00 03 26 5.7 266.4 5.6 47.0 658 F 1 14816 14 50 28 SMM1 00 03 32 5.7 266.4 5.6 47.0 0 1 4 14816 14 50 22 15 01 26 --- 00 14 32 3.7 268.3 5.7 H 47.1 0 R 1 15956 15 01 32 S68N 00 14 38 3.7 268.3 5.7 H 47.1 0 1 4 15956 15 01 26 15 12 31 --- 00 25 38 1.7 270.2 5.9 D 47.1 0 R 1 11527 15 14 30 J2005+7752 00 27 38 46.8 343.8 4.4 102.9 24 1 4 11527 15 14 30 15 17 30 =2007+777 00 30 38 46.7 343.7 4.4 102.2 180 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: 8 Station: VLBA_HN 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: 8 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