COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: H2O maser proper motions in low-mass YSOs Exp. Code: BM184A 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 1 Apr 2003 Day 91 --- Next scan frequencies: 22235.27 22235.27 Next BBC frequencies: 735.27 735.27 Next scan bandwidths: 4.00 4.00 09 35 07 J1751+0939 17 24 32 56.2 167.9 -0.5 -8.9 0 1 1 0 09 35 07 09 38 07 =1749+096 17 27 32 56.3 169.2 -0.4 -8.0 180 F 1 1197 09 38 38 SMM1 17 28 03 46.1 157.4 -1.0 -16.4 5 1 1 1197 09 38 38 09 48 36 --- 17 38 03 46.7 160.9 -0.9 -13.9 598 F 1 5186 09 48 42 S68N 17 38 09 46.8 160.9 -0.9 -13.9 0 1 1 5186 09 48 36 09 58 41 --- 17 48 09 47.3 164.5 -0.7 -11.3 598 F 1 9215 09 58 47 SMM1 17 48 15 47.3 164.5 -0.7 -11.3 0 1 1 9215 09 58 41 10 08 45 --- 17 58 15 47.7 168.2 -0.5 -8.6 598 F 1 13245 10 08 51 S68N 17 58 21 47.7 168.2 -0.5 -8.6 0 1 1 13245 10 08 45 10 18 50 --- 18 08 21 48.1 171.9 -0.4 -5.9 598 F 1 17274 10 18 56 SMM1 18 08 27 48.0 171.9 -0.4 -5.9 0 1 2 17274 10 18 50 10 28 54 --- 18 18 27 48.2 175.7 -0.2 -3.2 598 R 1 13245 10 29 00 S68N 18 18 34 48.3 175.7 -0.2 -3.1 0 1 2 13245 10 28 54 10 38 58 --- 18 28 34 48.3 179.5 0.0 -0.4 598 R 1 9215 10 38 58 J1642+3948 18 28 34 70.0 270.0 1.8 72.4 -66 1 2 9215 10 38 58 10 41 58 =1641+399 18 31 34 69.5 270.5 1.8 72.3 113 R 1 8019 10 43 34 SMM1 18 33 10 48.3 181.2 0.1 0.9 30 1 2 8019 10 43 34 10 53 32 --- 18 43 10 48.2 184.9 0.2 3.6 598 R 1 4030 10 53 38 S68N 18 43 16 48.2 185.0 0.2 3.7 0 1 2 4030 10 53 32 11 03 37 --- 18 53 16 48.0 188.7 0.4 6.4 598 R 1 0 11 03 43 SMM1 18 53 22 48.0 188.8 0.4 6.4 0 1 1 0 11 03 37 11 13 41 --- 19 03 22 47.7 192.4 0.6 9.1 598 F 2 4029 11 13 47 S68N 19 03 28 47.7 192.5 0.6 9.1 0 1 1 4029 11 13 41 11 23 45 --- 19 13 28 47.2 196.1 0.7 11.7 598 F 2 8059 11 23 51 SMM1 19 13 34 47.2 196.1 0.7 11.8 0 1 1 8059 11 23 45 11 33 50 --- 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 1 Apr 2003 Day 91 --- 11 33 56 S68N 19 23 40 46.6 199.8 0.9 14.3 0 1 1 12089 11 33 50 11 43 54 --- 19 33 40 46.0 203.3 1.1 16.8 598 F 2 16118 11 45 54 J1751+0939 19 35 40 49.7 221.9 1.7 29.8 101 1 1 16118 11 45 54 11 48 53 =1749+096 19 38 40 49.4 222.9 1.8 30.4 180 F 2 17315 11 49 24 SMM1 19 39 10 45.5 205.1 1.2 18.1 12 1 2 17315 11 49 24 11 59 22 --- 19 49 10 44.7 208.5 1.3 20.4 598 R 2 13326 11 59 28 S68N 19 49 16 44.7 208.5 1.3 20.5 0 1 2 13326 11 59 22 12 09 26 --- 19 59 16 43.8 211.8 1.5 22.7 598 R 2 9296 12 09 32 SMM1 19 59 22 43.8 211.8 1.5 22.7 0 1 2 9296 12 09 26 12 19 31 --- 20 09 22 42.8 214.9 1.7 24.8 598 R 2 5267 12 19 37 S68N 20 09 28 42.8 215.0 1.7 24.8 0 1 2 5267 12 19 31 12 29 35 --- 20 19 28 41.7 218.0 1.8 26.8 598 R 2 1237 12 29 41 SMM1 20 19 35 41.7 218.0 1.8 26.8 0 1 1 1237 12 29 35 12 39 40 --- 20 29 35 40.5 220.9 2.0 28.7 598 F 3 2792 12 39 46 S68N 20 29 41 40.5 221.0 2.0 28.7 0 1 1 2792 12 39 40 12 49 44 --- 20 39 41 39.3 223.8 2.2 30.5 598 F 3 6822 12 50 14 J1751+0939 20 40 11 40.5 240.4 2.8 40.2 13 1 1 6822 12 50 14 12 53 14 =1749+096 20 43 11 40.0 241.2 2.9 40.6 180 F 3 8019 12 53 43 SMM1 20 43 41 38.7 224.9 2.2 31.1 13 1 1 8019 12 53 43 13 03 42 --- 20 53 41 37.4 227.6 2.4 32.7 598 F 3 12008 13 03 48 S68N 20 53 47 37.4 227.7 2.4 32.8 0 1 1 12008 13 03 42 13 13 46 --- 21 03 47 36.0 230.3 2.6 34.3 598 F 3 16037 13 13 52 SMM1 21 03 53 36.0 230.3 2.6 34.3 0 1 2 16037 13 13 46 13 23 51 --- 21 13 53 34.6 232.8 2.7 35.7 598 R 3 15133 13 23 57 S68N 21 13 59 34.6 232.8 2.7 35.7 0 1 2 15133 13 23 51 13 33 55 --- 21 23 59 33.1 235.2 2.9 37.0 598 R 3 11104 13 34 01 SMM1 21 24 05 33.1 235.2 2.9 37.0 0 1 2 11104 13 33 55 13 43 59 --- 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 1 Apr 2003 Day 91 --- 13 44 06 S68N 21 34 11 31.5 237.6 3.1 38.2 0 1 2 7074 13 43 59 13 54 04 --- 21 44 11 30.0 239.9 3.2 39.3 598 R 3 3044 13 56 04 J1751+0939 21 46 11 29.3 254.9 3.9 45.8 104 1 2 3044 13 56 04 13 59 03 =1749+096 21 49 11 28.8 255.5 4.0 46.0 180 R 3 1848 13 59 34 SMM1 21 49 42 29.1 241.1 3.3 39.9 15 1 1 1848 13 59 34 14 09 32 --- 21 59 42 27.5 243.3 3.5 40.8 598 F 4 2141 14 09 38 S68N 21 59 48 27.5 243.3 3.5 40.9 0 1 1 2141 14 09 32 14 19 37 --- 22 09 48 25.8 245.4 3.7 41.8 598 F 4 6171 14 19 43 SMM1 22 09 54 25.8 245.4 3.7 41.7 0 1 1 6171 14 19 37 14 29 41 --- 22 19 54 24.1 247.4 3.8 42.6 598 F 4 10200 14 29 47 S68N 22 20 00 24.1 247.5 3.8 42.6 0 1 1 10200 14 29 41 14 39 45 --- 22 30 00 22.4 249.5 4.0 43.3 598 F 4 14230 14 39 51 SMM1 22 30 06 22.4 249.5 4.0 43.3 0 1 2 14230 14 39 45 14 49 50 --- 22 40 06 20.6 251.4 4.2 44.0 598 R 4 16940 14 49 56 S68N 22 40 12 20.6 251.5 4.2 44.0 0 1 2 16940 14 49 50 14 59 54 --- 22 50 12 18.9 253.4 4.3 44.6 598 R 4 12911 15 01 46 J2005+7752 22 52 05 51.3 347.1 2.8 128.8 41 1 2 12911 15 01 46 15 04 46 =2007+777 22 55 05 51.2 346.9 2.8 128.0 180 R 4 11714 15 06 37 SMM1 22 56 56 17.7 254.6 4.4 44.9 38 1 2 11714 15 06 37 15 17 35 --- 23 07 56 15.7 256.6 4.6 45.4 658 R 4 7326 15 17 41 S68N 23 08 02 15.7 256.7 4.6 45.4 0 1 2 7326 15 17 35 15 28 39 --- 23 19 02 13.8 258.7 4.8 45.9 658 R 4 2898 15 28 45 SMM1 23 19 08 13.7 258.7 4.8 45.9 0 1 3 2898 15 28 39 15 39 43 --- 23 30 08 11.8 260.6 5.0 46.3 658 F 1 1531 15 39 49 S68N 23 30 14 11.8 260.6 5.0 46.3 0 1 3 1531 15 39 43 15 50 48 --- 23 41 14 9.8 262.6 5.2 46.6 658 F 1 5959 15 50 54 SMM1 23 41 20 9.7 262.6 5.2 46.6 0 1 3 5959 15 50 48 16 01 52 --- 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 1 Apr 2003 Day 91 --- 16 01 58 S68N 23 52 26 7.7 264.5 5.4 46.8 0 1 3 10388 16 01 52 16 12 56 --- 00 03 26 5.7 266.4 5.6 47.0 658 F 1 14816 16 13 02 SMM1 00 03 32 5.7 266.4 5.6 47.0 0 1 4 14816 16 12 56 16 24 00 --- 00 14 32 3.7 268.3 5.7 H 47.1 0 R 1 15956 16 24 06 S68N 00 14 38 3.7 268.3 5.7 H 47.1 0 1 4 15956 16 24 00 16 35 05 --- 00 25 38 1.7 270.2 5.9 D 47.1 0 R 1 11527 16 37 04 J2005+7752 00 27 38 46.8 343.8 4.4 102.9 24 1 4 11527 16 37 04 16 40 04 =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= 22235.27 22235.27 BBC fr= 735.27 735.27 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 58.851050 01 13 15.94881 * 01 15 20.54000 01 15 14.84709 From catalog imbedded in main SCHED input file. first target source * S68N 18 27 15.790528 * 18 29 48.118000 18 29 57.153575 01 14 41.38044 * 01 16 45.85000 01 16 40.14208 From catalog imbedded in main SCHED input file. second target source * J1751+0939 17 49 10.387930 * 17 51 32.818573 17 51 41.488180 1749+096 09 39 42.82596 * 09 39 00.72851 09 38 42.61635 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 05.680416 1641+399 39 54 10.81489 * 39 48 36.99395 39 47 56.29177 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 21.544256 2007+777 77 43 58.12308 * 77 52 43.24761 77 52 50.67603 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 92.9 S68N 92.9 J1751+0939 101.6 J1642+3948 109.2 J2005+7752 81.3 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