COVER INFORMATION Station: VLBA_MK (Code Mk ) 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_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 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 11 50 39 3.0 80.8 -6.0 -70.4 0 1 1 0 09 35 07 09 38 07 =1749+096 11 53 39 3.7 81.1 -6.0 -70.5 180 F 1 1197 10 18 56 SMM1 12 34 35 1.5 89.2 -5.9 D -70.2 2437 1 1 1197 10 18 56 10 28 54 --- 12 44 35 3.9 90.1 -5.8 -70.2 0 F 1 5186 10 29 00 S68N 12 44 41 3.9 90.0 -5.8 -70.2 0 1 1 5186 10 28 54 10 38 58 --- 12 54 41 6.2 90.9 -5.6 -70.2 598 F 1 9215 10 38 58 J1642+3948 12 54 41 37.5 54.5 -3.8 -94.8 -69 1 1 9215 10 38 58 10 41 58 =1641+399 12 57 41 38.1 54.4 -3.8 -95.4 111 F 1 10412 10 43 34 SMM1 12 59 17 7.3 91.3 -5.5 -70.2 28 1 1 10412 10 43 34 10 53 32 --- 13 09 17 9.7 92.2 -5.3 -70.1 598 F 1 14401 10 53 38 S68N 13 09 23 9.7 92.2 -5.3 -70.1 0 1 2 14401 10 53 32 11 03 37 --- 13 19 23 12.1 93.0 -5.2 -70.0 598 R 1 16769 11 03 43 SMM1 13 19 29 12.1 93.0 -5.2 -70.0 0 1 2 16769 11 03 37 11 13 41 --- 13 29 29 14.4 93.9 -5.0 -69.9 598 R 1 12740 11 13 47 S68N 13 29 35 14.5 93.9 -5.0 -69.9 0 1 2 12740 11 13 41 11 23 45 --- 13 39 35 16.8 94.8 -4.8 -69.7 598 R 1 8710 11 23 51 SMM1 13 39 41 16.8 94.8 -4.8 -69.7 0 1 2 8710 11 23 45 11 33 50 --- 13 49 41 19.1 95.8 -4.7 -69.4 598 R 1 4681 11 33 56 S68N 13 49 47 19.2 95.8 -4.7 -69.5 0 1 2 4681 11 33 50 11 43 54 --- 13 59 47 21.5 96.7 -4.5 -69.2 598 R 1 651 11 45 54 J1751+0939 14 01 47 33.7 91.5 -3.8 -72.6 89 1 1 651 11 45 54 11 48 53 =1749+096 14 04 47 34.4 91.8 -3.8 -72.5 180 F 2 546 11 49 24 SMM1 14 05 18 22.8 97.2 -4.4 -69.0 1 1 1 546 11 49 24 11 59 22 --- 14 15 18 25.1 98.2 -4.2 -68.7 598 F 2 4535 11 59 28 S68N 14 15 24 25.2 98.2 -4.2 -68.7 0 1 1 4535 11 59 22 12 09 26 --- 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 1 Apr 2003 Day 91 --- 12 09 32 SMM1 14 25 30 27.5 99.3 -4.1 -68.2 0 1 1 8564 12 09 26 12 19 31 --- 14 35 30 29.8 100.3 -3.9 -67.8 598 F 2 12594 12 19 37 S68N 14 35 36 29.9 100.3 -3.9 -67.8 0 1 1 12594 12 19 31 12 29 35 --- 14 45 36 32.2 101.4 -3.7 -67.3 598 F 2 16623 12 29 41 SMM1 14 45 42 32.2 101.5 -3.7 -67.3 0 1 2 16623 12 29 35 12 39 40 --- 14 55 42 34.5 102.6 -3.6 -66.7 598 R 2 14547 12 39 46 S68N 14 55 48 34.5 102.6 -3.6 -66.7 0 1 2 14547 12 39 40 12 49 44 --- 15 05 48 36.8 103.9 -3.4 -66.0 598 R 2 10517 12 50 14 J1751+0939 15 06 18 48.9 98.1 -2.8 -70.9 0 1 2 10517 12 50 14 12 53 14 =1749+096 15 09 18 49.6 98.5 -2.7 -70.7 180 R 2 9321 12 53 43 SMM1 15 09 48 37.7 104.4 -3.3 -65.7 0 1 2 9321 12 53 43 13 03 42 --- 15 19 48 40.0 105.7 -3.2 -64.9 598 R 2 5332 13 03 48 S68N 15 19 54 40.0 105.7 -3.2 -64.9 0 1 2 5332 13 03 42 13 13 46 --- 15 29 54 42.3 107.2 -3.0 -64.0 598 R 2 1302 13 13 52 SMM1 15 30 00 42.3 107.2 -3.0 -64.0 0 1 1 1302 13 13 46 13 23 51 --- 15 40 00 44.5 108.7 -2.8 -63.0 598 F 3 2727 13 23 57 S68N 15 40 06 44.5 108.7 -2.8 -63.0 0 1 1 2727 13 23 51 13 33 55 --- 15 50 06 46.8 110.4 -2.7 -61.9 598 F 3 6757 13 34 01 SMM1 15 50 12 46.8 110.4 -2.7 -61.9 0 1 1 6757 13 33 55 13 43 59 --- 16 00 12 49.0 112.2 -2.5 -60.6 598 F 3 10786 13 44 06 S68N 16 00 19 49.0 112.2 -2.5 -60.6 0 1 1 10786 13 43 59 13 54 04 --- 16 10 19 51.2 114.2 -2.3 -59.2 598 F 3 14816 13 56 04 J1751+0939 16 12 19 64.0 109.3 -1.7 -64.2 88 1 1 14816 13 56 04 13 59 03 =1749+096 16 15 19 64.6 110.1 -1.6 -63.7 180 F 3 16013 13 59 34 SMM1 16 15 49 52.3 115.3 -2.2 -58.3 0 1 2 16013 13 59 34 14 09 32 --- 16 25 49 54.4 117.6 -2.1 -56.5 598 R 3 15198 14 09 38 S68N 16 25 55 54.5 117.6 -2.1 -56.5 0 1 2 15198 14 09 32 14 19 37 --- 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 1 Apr 2003 Day 91 --- 14 19 43 SMM1 16 36 01 56.5 120.2 -1.9 -54.5 0 1 2 11168 14 19 37 14 29 41 --- 16 46 01 58.5 122.9 -1.7 -52.2 598 R 3 7139 14 29 47 S68N 16 46 08 58.6 122.9 -1.7 -52.2 0 1 2 7139 14 29 41 14 39 45 --- 16 56 08 60.5 126.1 -1.6 -49.5 598 R 3 3109 14 39 51 SMM1 16 56 14 60.5 126.1 -1.6 -49.5 0 1 1 3109 14 39 45 14 49 50 --- 17 06 14 62.4 129.6 -1.4 -46.5 598 F 4 920 14 49 56 S68N 17 06 20 62.4 129.6 -1.4 -46.5 0 1 1 920 14 49 50 14 59 54 --- 17 16 20 64.2 133.6 -1.2 -43.0 598 F 4 4950 15 01 46 J2005+7752 17 18 12 28.6 9.2 -2.8 -134.4 23 1 1 4950 15 01 46 15 04 46 =2007+777 17 21 12 28.7 9.0 -2.7 -135.2 180 F 4 6146 15 06 37 SMM1 17 23 03 65.3 136.5 -1.1 -40.3 20 1 1 6146 15 06 37 15 17 35 --- 17 34 03 67.0 141.9 -0.9 -35.5 658 F 4 10534 15 17 41 S68N 17 34 09 67.0 141.9 -0.9 -35.5 0 1 1 10534 15 17 35 15 28 39 --- 17 45 09 68.5 148.0 -0.7 -29.9 658 F 4 14963 15 28 45 SMM1 17 45 15 68.5 148.1 -0.7 -29.8 0 1 2 14963 15 28 39 15 39 43 --- 17 56 15 69.7 155.0 -0.6 -23.4 658 R 4 15809 15 39 49 S68N 17 56 21 69.7 155.1 -0.6 -23.4 0 1 2 15809 15 39 43 15 50 48 --- 18 07 21 70.7 162.7 -0.4 -16.2 658 R 4 11380 15 50 54 SMM1 18 07 27 70.7 162.8 -0.4 -16.2 0 1 2 11380 15 50 48 16 01 52 --- 18 18 27 71.2 171.0 -0.2 -8.5 658 R 4 6952 16 01 58 S68N 18 18 34 71.3 171.1 -0.2 -8.4 0 1 2 6952 16 01 52 16 12 56 --- 18 29 34 71.5 179.7 0.0 -0.3 658 R 4 2524 16 13 02 SMM1 18 29 40 71.5 179.7 0.0 -0.2 0 1 3 2524 16 12 56 16 24 00 --- 18 40 40 71.3 188.3 0.2 7.8 658 F 1 1905 16 24 06 S68N 18 40 46 71.3 188.4 0.2 7.9 0 1 3 1905 16 24 00 16 35 05 --- 18 51 46 70.7 196.7 0.4 15.7 658 F 1 6333 16 37 04 J2005+7752 18 53 46 31.3 364.3 -1.2 -160.2 2 1 3 6333 16 37 04 16 40 04 =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= 22235.27 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