COVER INFORMATION Station: VLBA_MK (Code Mk ) 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_MK (Code Mk ) 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 11 50 39 3.0 80.8 -6.0 -70.4 0 1 1 0 08 12 33 08 15 33 =1749+096 11 53 39 3.7 81.1 -6.0 -70.5 180 F 1 1197 08 56 21 SMM1 12 34 35 1.5 89.2 -5.9 D -70.2 2437 1 1 1197 08 56 21 09 06 20 --- 12 44 35 3.9 90.1 -5.8 -70.2 0 F 1 5186 09 06 26 S68N 12 44 41 3.9 90.0 -5.8 -70.2 0 1 1 5186 09 06 20 09 16 24 --- 12 54 41 6.2 90.9 -5.6 -70.2 598 F 1 9215 09 16 24 J1642+3948 12 54 41 37.5 54.5 -3.8 -94.8 -69 1 1 9215 09 16 24 09 19 24 =1641+399 12 57 41 38.1 54.4 -3.8 -95.4 111 F 1 10412 09 21 00 SMM1 12 59 17 7.3 91.3 -5.5 -70.2 28 1 1 10412 09 21 00 09 30 58 --- 13 09 17 9.7 92.2 -5.3 -70.1 598 F 1 14401 09 31 04 S68N 13 09 23 9.7 92.2 -5.3 -70.1 0 1 2 14401 09 30 58 09 41 02 --- 13 19 23 12.1 93.0 -5.2 -70.0 598 R 1 16769 09 41 08 SMM1 13 19 29 12.1 93.0 -5.2 -70.0 0 1 2 16769 09 41 02 09 51 07 --- 13 29 29 14.4 93.9 -5.0 -69.9 598 R 1 12740 09 51 13 S68N 13 29 35 14.4 93.9 -5.0 -69.9 0 1 2 12740 09 51 07 10 01 11 --- 13 39 35 16.8 94.8 -4.8 -69.7 598 R 1 8710 10 01 17 SMM1 13 39 41 16.8 94.8 -4.8 -69.7 0 1 2 8710 10 01 11 10 11 16 --- 13 49 41 19.1 95.8 -4.7 -69.4 598 R 1 4681 10 11 22 S68N 13 49 47 19.2 95.7 -4.7 -69.5 0 1 2 4681 10 11 16 10 21 20 --- 13 59 47 21.5 96.7 -4.5 -69.2 598 R 1 651 10 23 20 J1751+0939 14 01 47 33.7 91.5 -3.8 -72.6 89 1 1 651 10 23 20 10 26 19 =1749+096 14 04 47 34.4 91.8 -3.8 -72.5 180 F 2 546 10 26 49 SMM1 14 05 18 22.8 97.2 -4.4 -69.0 1 1 1 546 10 26 49 10 36 48 --- 14 15 18 25.1 98.2 -4.2 -68.7 598 F 2 4535 10 36 54 S68N 14 15 24 25.2 98.2 -4.2 -68.7 0 1 1 4535 10 36 48 10 46 52 --- 14 25 24 27.5 99.2 -4.1 -68.3 598 F 2 8564 Schedule for VLBA_MK (Code Mk ) 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 46 58 SMM1 14 25 30 27.5 99.3 -4.1 -68.2 0 1 1 8564 10 46 52 10 56 57 --- 14 35 30 29.8 100.3 -3.9 -67.8 598 F 2 12594 10 57 03 S68N 14 35 36 29.9 100.3 -3.9 -67.8 0 1 1 12594 10 56 57 11 07 01 --- 14 45 36 32.2 101.4 -3.7 -67.3 598 F 2 16623 11 07 07 SMM1 14 45 42 32.2 101.5 -3.7 -67.3 0 1 2 16623 11 07 01 11 17 06 --- 14 55 42 34.5 102.6 -3.6 -66.7 598 R 2 14547 11 17 12 S68N 14 55 48 34.5 102.6 -3.6 -66.7 0 1 2 14547 11 17 06 11 27 10 --- 15 05 48 36.8 103.9 -3.4 -66.0 598 R 2 10517 11 27 40 J1751+0939 15 06 18 48.9 98.1 -2.8 -70.9 0 1 2 10517 11 27 40 11 30 40 =1749+096 15 09 18 49.6 98.5 -2.7 -70.7 180 R 2 9321 11 31 09 SMM1 15 09 48 37.7 104.4 -3.3 -65.7 0 1 2 9321 11 31 09 11 41 08 --- 15 19 48 40.0 105.7 -3.2 -64.9 598 R 2 5332 11 41 14 S68N 15 19 54 40.0 105.7 -3.2 -64.9 0 1 2 5332 11 41 08 11 51 12 --- 15 29 54 42.3 107.2 -3.0 -64.1 598 R 2 1302 11 51 18 SMM1 15 30 00 42.3 107.2 -3.0 -64.0 0 1 1 1302 11 51 12 12 01 17 --- 15 40 00 44.5 108.7 -2.8 -63.0 598 F 3 2727 12 01 23 S68N 15 40 06 44.5 108.7 -2.8 -63.0 0 1 1 2727 12 01 17 12 11 21 --- 15 50 06 46.8 110.4 -2.7 -61.9 598 F 3 6757 12 11 27 SMM1 15 50 12 46.8 110.4 -2.7 -61.9 0 1 1 6757 12 11 21 12 21 25 --- 16 00 12 49.0 112.2 -2.5 -60.6 598 F 3 10786 12 21 31 S68N 16 00 19 49.0 112.2 -2.5 -60.6 0 1 1 10786 12 21 25 12 31 30 --- 16 10 19 51.2 114.2 -2.3 -59.2 598 F 3 14816 12 33 30 J1751+0939 16 12 19 64.0 109.3 -1.7 -64.2 88 1 1 14816 12 33 30 12 36 29 =1749+096 16 15 19 64.6 110.1 -1.6 -63.7 180 F 3 16013 12 37 00 SMM1 16 15 49 52.3 115.3 -2.2 -58.3 0 1 2 16013 12 37 00 12 46 58 --- 16 25 49 54.4 117.6 -2.1 -56.5 598 R 3 15198 12 47 04 S68N 16 25 55 54.5 117.6 -2.1 -56.5 0 1 2 15198 12 46 58 12 57 02 --- 16 35 55 56.5 120.1 -1.9 -54.5 598 R 3 11168 Schedule for VLBA_MK (Code Mk ) 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 57 08 SMM1 16 36 01 56.5 120.2 -1.9 -54.5 0 1 2 11168 12 57 02 13 07 07 --- 16 46 01 58.5 122.9 -1.7 -52.2 598 R 3 7139 13 07 13 S68N 16 46 08 58.6 122.9 -1.7 -52.2 0 1 2 7139 13 07 07 13 17 11 --- 16 56 08 60.5 126.0 -1.6 -49.5 598 R 3 3109 13 17 17 SMM1 16 56 14 60.5 126.1 -1.6 -49.5 0 1 1 3109 13 17 11 13 27 16 --- 17 06 14 62.4 129.6 -1.4 -46.5 598 F 4 920 13 27 22 S68N 17 06 20 62.4 129.6 -1.4 -46.5 0 1 1 920 13 27 16 13 37 20 --- 17 16 20 64.2 133.6 -1.2 -43.0 598 F 4 4950 13 39 12 J2005+7752 17 18 12 28.6 9.2 -2.8 -134.4 23 1 1 4950 13 39 12 13 42 12 =2007+777 17 21 12 28.7 9.0 -2.7 -135.2 180 F 4 6146 13 44 02 SMM1 17 23 03 65.3 136.5 -1.1 -40.3 20 1 1 6146 13 44 02 13 55 01 --- 17 34 03 67.0 141.9 -0.9 -35.5 658 F 4 10534 13 55 07 S68N 17 34 09 67.0 141.9 -0.9 -35.5 0 1 1 10534 13 55 01 14 06 05 --- 17 45 09 68.5 148.0 -0.7 -29.9 658 F 4 14963 14 06 11 SMM1 17 45 15 68.5 148.1 -0.7 -29.8 0 1 2 14963 14 06 05 14 17 09 --- 17 56 15 69.7 155.0 -0.6 -23.4 658 R 4 15809 14 17 15 S68N 17 56 21 69.7 155.1 -0.6 -23.4 0 1 2 15809 14 17 09 14 28 13 --- 18 07 21 70.7 162.7 -0.4 -16.3 658 R 4 11380 14 28 20 SMM1 18 07 27 70.7 162.8 -0.4 -16.2 0 1 2 11380 14 28 13 14 39 18 --- 18 18 27 71.2 171.0 -0.2 -8.5 658 R 4 6952 14 39 24 S68N 18 18 34 71.3 171.1 -0.2 -8.4 0 1 2 6952 14 39 18 14 50 22 --- 18 29 34 71.5 179.7 0.0 -0.3 658 R 4 2524 14 50 28 SMM1 18 29 40 71.5 179.7 0.0 -0.2 0 1 3 2524 14 50 22 15 01 26 --- 18 40 40 71.3 188.3 0.2 7.8 658 F 1 1905 15 01 32 S68N 18 40 46 71.3 188.4 0.2 7.9 0 1 3 1905 15 01 26 15 12 31 --- 18 51 46 70.7 196.7 0.4 15.7 658 F 1 6333 15 14 30 J2005+7752 18 53 46 31.3 364.3 -1.2 -160.2 2 1 3 6333 15 14 30 15 17 30 =2007+777 18 56 46 31.3 364.2 -1.1 -161.0 180 F 1 7530 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: 10 Station: VLBA_MK 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: 10 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