COVER INFORMATION Station: VLBA_MK (Code Mk ) Experiment: SiO Masers from protoplanetary nebulaes Exp. Code: bd076c Schedule Version: 3.00 Processed by SCHED version: Release of 18 Sept. 2003 PI: Desmurs, J.-F. Address: Observatorio Astronomico Nacional Phone: 34 1 885 50 60 EMAIL: desmurs@oan.es Fax: 34 1 885 50 62 Phone during observation: 34 1 885 50 60 Observing mode: VLBA 7mm-64-4-2: 7mm : 2 Pol & 2 spectral lines, 4MHz. Notes: This is a line experiment at 7mm Full Polarization experiment ** SWITCH PHAS CAL OFF ** please, thank you Schedule for VLBA_MK (Code Mk ) Page 2 SiO Masers from protoplanetary nebulaes 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) ---------------------------------------------------------------------------------------- --- Sat 6 Dec 2003 Day 340 --- Next scan frequencies: 42816.03 42816.03 43117.51 43117.51 Next BBC frequencies: 616.03 616.03 917.51 917.51 Next scan bandwidths: 4.00 4.00 4.00 4.00 17 12 10 3C345 11 50 39 25.3 54.4 -4.9 -84.6 0 1 1 0 17 12 10 17 16 09 --- 11 54 39 26.0 54.5 -4.8 -85.2 239 F 1 1596 17 21 02 OQ208 11 59 33 59.7 67.2 -2.1 -99.4 220 1 1 1596 17 21 02 17 24 02 --- 12 02 33 60.4 67.0 -2.1 -100.0 180 F 1 2792 17 27 43 J1751+0939 12 06 15 6.6 82.1 -5.8 -71.0 108 1 1 2792 17 27 43 17 30 42 =J1751+09 12 09 15 7.3 82.3 -5.7 -71.1 180 F 1 3989 18 11 31 OQ208 12 50 10 70.5 60.1 -1.3 -112.0 2316 1 1 3989 18 11 31 18 14 30 --- 12 53 10 71.1 59.3 -1.2 -113.0 180 F 1 5186 18 18 09 J1751+0939 12 56 49 18.5 86.1 -4.9 -72.2 107 1 1 5186 18 18 09 18 21 08 =J1751+09 12 59 49 19.2 86.4 -4.9 -72.3 180 F 1 6383 18 28 24 19312+1950 13 07 06 0.3 68.7 -6.5 D -69.0 396 1 1 6383 18 28 24 18 42 21 --- 13 21 06 3.4 69.9 -6.2 -70.2 0 F 1 11967 18 42 37 19312+1950 13 21 21 3.5 69.9 -6.2 -70.2 10 1 2 11967 18 42 21 18 56 34 --- 13 35 21 6.6 71.0 -6.0 -71.3 838 R 1 17547 18 59 34 J1924+1540 13 38 21 8.3 76.3 -5.8 -71.7 171 1 2 17547 18 59 34 19 04 34 --- 13 43 21 9.5 76.6 -5.7 -72.0 299 R 1 15552 19 08 55 OQ208 13 47 43 80.3 26.2 -0.3 -151.8 113 1 2 15552 19 08 55 19 11 54 --- 13 50 43 80.6 22.7 -0.3 -155.7 180 R 1 14356 19 15 09 J1751+0939 13 53 59 31.9 90.8 -4.0 -72.6 91 1 2 14356 19 15 09 19 18 08 =J1751+09 13 56 59 32.6 91.1 -3.9 -72.6 180 R 1 13159 19 19 27 J1924+1540 13 58 18 12.9 77.7 -5.4 -72.7 33 1 2 13159 19 19 27 19 24 26 --- 14 03 18 14.1 78.1 -5.4 -73.0 299 R 1 11165 19 24 55 19312+1950 14 03 46 12.9 73.1 -5.5 -73.4 19 1 2 11165 19 24 55 19 38 52 --- 14 17 46 16.1 74.0 -5.3 -74.3 838 R 1 5580 19 39 08 19312+1950 14 18 01 16.2 74.0 -5.3 -74.4 10 1 1 5580 19 38 52 19 53 05 --- 14 32 01 19.3 74.9 -5.1 -75.3 838 F 2 106 Schedule for VLBA_MK (Code Mk ) Page 3 SiO Masers from protoplanetary nebulaes 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) ---------------------------------------------------------------------------------------- --- Sat 6 Dec 2003 Day 340 --- 19 53 36 J1924+1540 14 32 32 20.8 80.2 -4.9 -74.4 21 1 1 106 19 53 36 19 58 35 --- 14 37 32 22.0 80.5 -4.8 -74.6 299 F 2 2100 20 02 43 OQ208 14 41 40 78.3 -40.7 0.6 135.8 129 1 1 2100 20 02 43 20 05 42 --- 14 44 40 77.9 -42.9 0.6 133.2 180 F 2 3297 20 08 21 J1751+0939 14 47 19 44.4 95.9 -3.1 -71.7 60 1 1 3297 20 08 21 20 11 20 =J1751+09 14 50 19 45.1 96.3 -3.0 -71.6 180 F 2 4494 20 12 59 J1924+1540 14 51 58 25.3 81.5 -4.5 -75.1 53 1 1 4494 20 12 59 20 17 58 --- 14 56 58 26.5 81.9 -4.5 -75.3 299 F 2 6488 20 18 31 19312+1950 14 57 31 25.1 76.5 -4.6 -76.9 23 1 1 6488 20 18 31 20 32 29 --- 15 11 31 28.4 77.3 -4.4 -77.7 838 F 2 12073 20 32 44 19312+1950 15 11 46 28.4 77.3 -4.4 -77.7 10 1 2 12073 20 32 29 20 46 41 --- 15 25 46 31.6 78.1 -4.2 -78.5 838 R 2 17441 20 47 17 J1924+1540 15 26 22 33.4 83.9 -4.0 -76.3 26 1 2 17441 20 47 17 20 52 16 --- 15 31 22 34.5 84.2 -3.9 -76.5 299 R 2 15446 20 55 54 OQ208 15 35 00 68.2 -62.4 1.5 108.5 114 1 2 15446 20 55 54 20 58 53 --- 15 38 00 67.6 -63.0 1.5 107.6 180 R 2 14250 21 00 57 J1751+0939 15 40 04 56.7 102.9 -2.2 -68.5 8 1 2 14250 21 00 57 21 03 57 =J1751+09 15 43 04 57.4 103.4 -2.1 -68.2 180 R 2 13053 21 05 35 J1924+1540 15 44 43 37.7 85.1 -3.7 -76.8 52 1 2 13053 21 05 35 21 10 34 --- 15 49 43 38.8 85.5 -3.6 -77.0 299 R 2 11058 21 11 08 19312+1950 15 50 17 37.3 79.4 -3.8 -79.9 24 1 2 11058 21 11 08 21 25 06 --- 16 04 17 40.5 80.1 -3.5 -80.7 838 R 2 5474 21 25 21 19312+1950 16 04 32 40.6 80.1 -3.5 -80.7 10 1 3 5474 21 25 06 21 39 19 --- 16 18 32 43.8 80.8 -3.3 -81.4 838 F 1 213 21 39 49 J1924+1540 16 19 02 45.7 87.6 -3.1 -77.5 19 1 3 213 21 39 49 21 44 48 --- 16 24 02 46.9 87.9 -3.0 -77.6 299 F 1 2208 21 47 40 3C345 16 26 54 69.7 9.0 -0.3 -169.0 113 1 3 2208 21 47 40 21 50 39 --- 16 29 54 69.8 7.3 -0.2 -171.0 180 F 1 3404 Schedule for VLBA_MK (Code Mk ) Page 4 SiO Masers from protoplanetary nebulaes 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) ---------------------------------------------------------------------------------------- --- Sat 6 Dec 2003 Day 340 --- 21 52 24 J1751+0939 16 31 39 68.2 114.8 -1.3 -60.0 27 1 3 3404 21 52 24 21 55 23 =J1751+09 16 34 39 68.8 115.9 -1.3 -59.2 180 F 1 4601 21 56 34 J1924+1540 16 35 50 49.7 88.9 -2.8 -77.7 26 1 3 4601 21 56 34 22 01 33 --- 16 40 50 50.8 89.3 -2.7 -77.7 299 F 1 6596 22 02 03 19312+1950 16 41 20 49.1 81.9 -2.9 -82.6 19 1 3 6596 22 02 03 22 16 00 --- 16 55 20 52.4 82.5 -2.7 -83.3 838 F 1 12180 22 16 16 19312+1950 16 55 35 52.5 82.5 -2.7 -83.3 10 1 4 12180 22 16 00 22 30 13 --- 17 09 35 55.7 83.1 -2.4 -84.0 838 R 1 17333 22 30 44 J1924+1540 17 10 06 57.7 91.8 -2.2 -77.6 19 1 4 17333 22 30 44 22 35 43 --- 17 15 06 58.9 92.3 -2.2 -77.5 299 R 1 15338 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: sio_43.set Matches group v7mm_b8 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 64 Format: VLBA1:2 Bits per sample: 2 Sample rate: 8.000 Number of channels: 4 Passes/head pos: 2 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= 42200.00 42200.00 42200.00 42200.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = A C A C VLBA FE= 7mm omit 7mm omit VLBA Synth= 15.4 7.4 11.6 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= 42816.03 42816.03 43117.51 43117.51 BBC fr= 616.03 616.03 917.51 917.51 Bandwd= 4.000 4.000 4.000 4.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = OFF PCALXB1= S1 S2 S3 S4 OFF OFF OFF OFF PCALXB2= M1 M2 M3 M4 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, 18, 26 track2= 3, 11, 19, 27 barrel=roll_auto SOURCE LIST -- SiO Masers from protoplanetary nebulaes 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) * 19312+1950 19 33 24.299738 * 19 35 35.805000 19 35 44.206809 19 56 54.99947 * 20 03 36.60900 20 04 07.69738 From catalog imbedded in main SCHED input file. Peak Flux ~ 1Jy Doppler based on LSR frame and radio definition. Velocities: 20.00 20.00 20.00 20.00 * J1924+1540 19 22 23.129981 * 19 24 39.455875 19 24 48.214474 15 34 46.75026 * 15 40 43.94129 15 41 10.60878 From catalog imbedded in main SCHED input file. VLBA Calib.-ICRF Frame - dist:05d05 S=0.65 a 7mm VLA Doppler based on other sources. * 3C345 16 41 17.606214 * 16 42 58.809952 16 43 04.522173 39 54 10.81489 * 39 48 36.99395 39 48 08.13542 From catalog imbedded in main SCHED input file. ICRF - Ext.1 Source - 1998 IERS Annual Report Doppler based on other sources. * OQ208 14 04 45.615151 * 14 07 00.394410 14 07 09.285749 28 41 29.23495 * 28 27 14.68998 28 26 04.55679 From catalog imbedded in main SCHED input file. ICRF - Ext.1 Source - 1998 IERS Annual Report Doppler based on other sources. * J1751+0939 17 49 10.387930 * 17 51 32.818573 17 51 41.866084 J1751+09 09 39 42.82596 * 09 39 00.72851 09 38 55.41247 From catalog imbedded in main SCHED input file. ICRF Ext.1 Source - Pol Doppler based on other sources. 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) 19312+1950 58.4 J1924+1540 53.5 3C345 62.3 OQ208 64.6 J1751+0939 35.4 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