COVER INFORMATION Station: VLA1 (Code Y ) 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 VLA1 (Code Y ) 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: 605.93 605.93 607.41 607.41 Next scan bandwidths: 4.00 4.00 4.00 4.00 17 12 10 3C345 15 02 01 69.1 66.7 -1.7 -97.9 0 1 1 0 17 12 10 17 16 09 --- 15 06 01 69.9 66.4 -1.6 -98.8 239 F 1 1596 17 21 02 OQ208 15 10 55 75.3 251.8 1.1 63.5 0 1 1 1596 17 21 02 17 24 02 --- 15 13 55 74.7 252.9 1.1 64.2 180 F 1 2792 17 27 43 J1751+0939 15 17 37 47.1 115.5 -2.6 -49.3 0 1 1 2792 17 27 43 17 30 42 =J1751+09 15 20 37 47.7 116.3 -2.5 -48.9 180 F 1 3989 17 32 07 J1924+1540 15 22 02 32.8 92.7 -4.0 -59.2 25 1 1 3989 17 32 07 17 37 07 --- 15 27 02 33.8 93.5 -4.0 -59.2 299 F 1 5984 17 37 31 19312+1950 15 27 26 33.8 87.4 -4.1 -61.8 0 1 1 5984 17 37 31 17 49 29 --- 15 39 26 36.3 89.0 -3.9 -61.8 718 F 1 10771 17 49 44 19312+1950 15 39 42 36.4 89.1 -3.9 -61.8 0 1 1 10771 17 49 29 18 01 42 --- 15 51 42 38.8 90.7 -3.7 -61.9 718 F 1 15658 18 02 07 J1924+1540 15 52 07 39.0 97.3 -3.5 -58.6 0 1 2 15658 18 02 07 18 07 06 --- 15 57 07 40.0 98.2 -3.5 -58.4 299 R 1 17547 18 11 31 OQ208 16 01 32 65.0 264.8 1.9 69.7 0 1 2 17547 18 11 31 18 14 30 --- 16 04 32 64.4 265.3 2.0 69.9 180 R 1 16350 18 18 09 J1751+0939 16 08 11 56.0 129.8 -1.7 -40.2 0 1 2 16350 18 18 09 18 21 08 =J1751+09 16 11 11 56.4 130.8 -1.7 -39.5 180 R 1 15154 18 22 44 J1924+1540 16 12 47 43.2 100.8 -3.2 -57.7 36 1 2 15154 18 22 44 18 27 43 --- 16 17 47 44.3 101.7 -3.1 -57.4 299 R 1 13159 18 28 24 19312+1950 16 18 28 44.4 94.7 -3.3 -61.5 15 1 2 13159 18 28 24 18 42 21 --- 16 32 28 47.3 97.0 -3.1 -61.1 838 R 1 7574 18 42 37 19312+1950 16 32 43 47.3 97.0 -3.1 -61.1 0 1 2 7574 18 42 21 18 56 34 --- 16 46 43 50.2 99.5 -2.8 -60.4 838 R 1 1889 18 59 34 J1924+1540 16 49 44 50.6 108.1 -2.6 -54.9 152 1 1 1889 18 59 34 19 04 34 --- 16 54 44 51.6 109.2 -2.5 -54.4 299 F 2 106 Schedule for VLA1 (Code Y ) 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 08 55 OQ208 16 59 05 53.1 273.2 2.9 70.1 0 1 1 106 19 08 55 19 11 54 --- 17 02 05 52.5 273.6 2.9 70.1 180 F 2 1303 19 15 09 J1751+0939 17 05 21 63.4 153.8 -0.8 -21.8 0 1 1 1303 19 15 09 19 18 08 =J1751+09 17 08 21 63.6 155.3 -0.7 -20.5 180 F 2 2499 19 19 27 J1924+1540 17 09 40 54.5 112.7 -2.3 -52.5 0 1 1 2499 19 19 27 19 24 26 --- 17 14 40 55.5 114.0 -2.2 -51.8 299 F 2 4494 19 24 55 19312+1950 17 15 08 55.9 105.1 -2.3 -58.4 0 1 1 4494 19 24 55 19 38 52 --- 17 29 08 58.7 108.4 -2.1 -56.8 838 F 2 10079 19 39 08 19312+1950 17 29 23 58.8 108.4 -2.1 -56.8 0 1 1 10079 19 38 52 19 53 05 --- 17 43 23 61.5 112.2 -1.9 -54.8 838 F 2 15764 19 53 36 J1924+1540 17 43 54 60.8 122.8 -1.7 -46.3 0 1 2 15764 19 53 36 19 58 35 --- 17 48 54 61.7 124.5 -1.6 -45.1 299 R 2 17441 20 02 43 OQ208 17 53 02 42.0 279.5 3.8 68.3 0 1 2 17441 20 02 43 20 05 42 --- 17 56 02 41.4 279.8 3.8 68.2 180 R 2 16244 20 08 21 J1751+0939 17 58 41 65.5 184.2 0.1 3.5 0 1 2 16244 20 08 21 20 11 20 =J1751+09 18 01 41 65.5 185.9 0.2 5.0 180 R 2 15048 20 12 59 J1924+1540 18 03 20 64.0 130.1 -1.4 -41.2 0 1 2 15048 20 12 59 20 17 58 --- 18 08 20 64.8 132.2 -1.3 -39.6 299 R 2 13053 20 18 31 19312+1950 18 08 53 66.2 120.5 -1.4 -49.4 0 1 2 13053 20 18 31 20 32 29 --- 18 22 53 68.6 126.3 -1.2 -45.3 838 R 2 7468 20 32 44 19312+1950 18 23 08 68.7 126.4 -1.2 -45.2 0 1 2 7468 20 32 29 20 46 41 --- 18 37 08 70.9 133.4 -1.0 -39.8 838 R 2 1783 20 47 17 J1924+1540 18 37 44 68.8 147.2 -0.8 -27.8 0 1 3 1783 20 47 17 20 52 16 --- 18 42 44 69.3 150.2 -0.7 -25.3 299 F 1 212 20 55 54 OQ208 18 46 22 31.2 285.2 4.7 65.4 0 1 3 212 20 55 54 20 58 53 --- 18 49 22 30.6 285.5 4.7 65.2 180 F 1 1409 21 00 57 J1751+0939 18 51 26 62.0 212.8 1.0 27.0 0 1 3 1409 21 00 57 21 03 57 =J1751+09 18 54 26 61.7 214.1 1.0 28.1 180 F 1 2605 Schedule for VLA1 (Code Y ) 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 05 35 J1924+1540 18 56 05 70.5 158.9 -0.5 -18.1 0 1 3 2605 21 05 35 21 10 34 --- 19 01 05 70.8 162.3 -0.4 -15.1 299 F 1 4600 21 11 08 19312+1950 19 01 39 74.1 149.5 -0.6 -26.6 0 1 3 4600 21 11 08 21 25 06 --- 19 15 39 75.3 161.1 -0.3 -16.6 838 F 1 10185 21 25 21 19312+1950 19 15 54 75.3 161.3 -0.3 -16.4 0 1 3 10185 21 25 06 21 39 19 --- 19 29 54 75.9 174.4 -0.1 -5.0 838 F 1 15872 21 39 49 J1924+1540 19 30 24 71.6 184.3 0.1 3.7 0 1 4 15872 21 39 49 21 44 48 --- 19 35 24 71.5 188.0 0.2 6.9 299 R 1 17334 21 47 40 3C345 19 38 16 54.9 292.4 2.9 85.2 0 1 4 17334 21 47 40 21 50 39 --- 19 41 16 54.3 292.5 3.0 84.8 180 R 1 16137 21 52 24 J1751+0939 19 43 01 54.7 232.8 1.9 42.0 0 1 4 16137 21 52 24 21 55 23 =J1751+09 19 46 01 54.2 233.7 1.9 42.6 180 R 1 14940 21 56 34 J1924+1540 19 47 12 70.9 196.7 0.4 14.3 0 1 4 14940 21 56 34 22 01 33 --- 19 52 12 70.6 200.2 0.5 17.3 299 R 1 12946 22 02 03 19312+1950 19 52 42 75.5 196.1 0.3 14.2 0 1 4 12946 22 02 03 22 16 00 --- 20 06 42 74.4 208.1 0.5 24.5 838 R 1 7361 22 16 16 19312+1950 20 06 57 74.4 208.3 0.5 24.7 0 1 4 7361 22 16 00 22 30 13 --- 20 20 57 72.8 218.5 0.8 33.3 838 R 1 1674 22 30 44 J1924+1540 20 21 28 67.6 218.2 0.9 32.2 0 1 3 1674 22 30 44 22 35 43 --- 20 26 28 67.0 220.8 1.0 34.2 299 F 2 320 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 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 2 Station: VLA1 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= 42210.10 42210.10 42510.10 42510.10 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 B D The following frequency sets based on this setup were used. Frequency Set: 2 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= 605.93 605.93 607.41 607.41 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 VLA specific information: (LO and FI cards will be written.) VLABAND: VQ VLABW: 0000 FEFILTER: 0000 VLAFEAB: 51.60 VLAFECD: 13.40 VLAIF: SYSQIF VLASYNA: 3610.10 VLASYNB: 3910.10 VLAROT: VLBQROT FLUKEA: 100.00 FLUKEB: 200.00 FLUKESET: 0 Details for VLA IFs: LO Sum Frequency span VLBI FIRSTLO VLA IF A: 42810.1000 42810.1000-42860.1000 42210.1000 VLA IF B: 43110.1000 43110.1000-43160.1000 42510.1000 VLA IF C: 42810.1000 42810.1000-42860.1000 42210.1000 VLA IF D: 43110.1000 43110.1000-43160.1000 42510.1000 With new digital patch panel, VLA IF = VLB IF. 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