COVER INFORMATION Station: VLBA_NL (Code Nl ) 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_NL (Code Nl ) 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 16 06 11 82.7 102.7 -0.6 -71.3 0 1 1 0 17 12 10 17 16 09 --- 16 10 11 83.5 104.8 -0.5 -69.8 239 F 1 1596 17 21 02 OQ208 16 15 05 60.9 253.1 2.1 54.2 188 1 1 1596 17 21 02 17 24 02 --- 16 18 05 60.3 253.9 2.2 54.6 180 F 1 2792 17 27 43 J1751+0939 16 21 46 52.3 142.0 -1.5 -27.8 140 1 1 2792 17 27 43 17 30 42 =J1751+09 16 24 46 52.6 143.0 -1.4 -27.1 180 F 1 3989 17 32 07 J1924+1540 16 26 12 43.7 110.6 -3.0 -46.5 57 1 1 3989 17 32 07 17 37 07 --- 16 31 12 44.6 111.8 -2.9 -46.0 299 F 1 5984 17 37 31 19312+1950 16 31 36 45.6 104.8 -3.1 -50.1 13 1 1 5984 17 37 31 17 49 29 --- 16 43 36 47.8 107.4 -2.9 -49.2 718 F 1 10771 17 49 44 19312+1950 16 43 51 47.8 107.5 -2.9 -49.2 10 1 1 10771 17 49 29 18 01 42 --- 16 55 51 49.9 110.3 -2.7 -48.1 718 F 1 15658 18 02 07 J1924+1540 16 56 16 48.8 118.0 -2.5 -43.1 14 1 2 15658 18 02 07 18 07 06 --- 17 01 16 49.6 119.4 -2.4 -42.4 299 R 1 17547 18 11 31 OQ208 17 05 42 51.6 264.3 3.0 57.6 162 1 2 17547 18 11 31 18 14 30 --- 17 08 42 51.1 264.9 3.0 57.6 180 R 1 16350 18 18 09 J1751+0939 17 12 21 56.7 162.1 -0.7 -13.4 144 1 2 16350 18 18 09 18 21 08 =J1751+09 17 15 21 56.9 163.4 -0.6 -12.5 180 R 1 15154 18 22 44 J1924+1540 17 16 57 52.1 123.9 -2.1 -40.0 63 1 2 15154 18 22 44 18 27 43 --- 17 21 57 52.9 125.4 -2.0 -39.1 299 R 1 13159 18 28 24 19312+1950 17 22 37 54.5 117.4 -2.2 -44.8 29 1 2 13159 18 28 24 18 42 21 --- 17 36 37 56.8 121.6 -2.0 -42.5 838 R 1 7574 18 42 37 19312+1950 17 36 52 56.8 121.7 -2.0 -42.5 10 1 2 7574 18 42 21 18 56 34 --- 17 50 52 59.0 126.4 -1.7 -39.8 838 R 1 1889 18 59 34 J1924+1540 17 53 53 57.4 136.3 -1.5 -32.3 167 1 1 1889 18 59 34 19 04 34 --- 17 58 53 58.0 138.3 -1.4 -31.0 299 F 2 106 Schedule for VLBA_NL (Code Nl ) 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 18 03 15 40.9 274.1 3.9 57.8 165 1 1 106 19 08 55 19 11 54 --- 18 06 15 40.3 274.5 4.0 57.7 180 F 2 1303 19 15 09 J1751+0939 18 09 30 57.6 188.2 0.3 6.2 131 1 1 1303 19 15 09 19 18 08 =J1751+09 18 12 30 57.6 189.6 0.3 7.2 180 F 2 2499 19 19 27 J1924+1540 18 13 49 59.8 144.4 -1.2 -26.8 43 1 1 2499 19 19 27 19 24 26 --- 18 18 49 60.3 146.5 -1.1 -25.3 299 F 2 4494 19 24 55 19312+1950 18 19 18 62.9 137.5 -1.3 -32.5 16 1 1 4494 19 24 55 19 38 52 --- 18 33 18 64.6 143.9 -1.0 -27.9 838 F 2 10079 19 39 08 19312+1950 18 33 33 64.6 144.0 -1.0 -27.8 10 1 1 10079 19 38 52 19 53 05 --- 18 47 33 66.0 151.2 -0.8 -22.5 838 F 2 15764 19 53 36 J1924+1540 18 48 04 62.7 160.4 -0.6 -15.1 18 1 2 15764 19 53 36 19 58 35 --- 18 53 04 63.0 163.0 -0.5 -13.1 299 R 2 17441 20 02 43 OQ208 18 57 12 31.0 282.1 4.8 56.0 162 1 2 17441 20 02 43 20 05 42 --- 19 00 12 30.4 282.5 4.9 55.9 180 R 2 16244 20 08 21 J1751+0939 19 02 51 54.3 211.0 1.2 23.0 105 1 2 16244 20 08 21 20 11 20 =J1751+09 19 05 51 54.0 212.2 1.2 23.8 180 R 2 15048 20 12 59 J1924+1540 19 07 30 63.6 170.6 -0.3 -7.3 65 1 2 15048 20 12 59 20 17 58 --- 19 12 30 63.8 173.3 -0.2 -5.2 299 R 2 13053 20 18 31 19312+1950 19 13 02 67.8 165.8 -0.4 -11.2 19 1 2 13053 20 18 31 20 32 29 --- 19 27 02 68.2 174.5 -0.1 -4.4 838 R 2 7468 20 32 44 19312+1950 19 27 18 68.2 174.6 -0.1 -4.2 10 1 2 7468 20 32 29 20 46 41 --- 19 41 18 68.3 183.5 0.1 2.8 838 R 2 1783 20 47 17 J1924+1540 19 41 53 63.7 189.3 0.3 7.2 20 1 3 1783 20 47 17 20 52 16 --- 19 46 53 63.5 192.0 0.4 9.2 299 F 1 212 20 55 54 OQ208 19 50 31 21.4 289.6 5.7 53.0 127 1 3 212 20 55 54 20 58 53 --- 19 53 31 20.9 290.0 5.8 52.8 180 F 1 1409 21 00 57 J1751+0939 19 55 36 47.9 229.2 2.1 34.9 64 1 3 1409 21 00 57 21 03 57 =J1751+09 19 58 36 47.5 230.1 2.1 35.5 180 F 1 2605 Schedule for VLBA_NL (Code Nl ) 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 20 00 14 62.8 198.9 0.6 14.6 61 1 3 2605 21 05 35 21 10 34 --- 20 05 14 62.5 201.5 0.7 16.5 299 F 1 4600 21 11 08 19312+1950 20 05 48 67.4 198.6 0.5 14.7 18 1 3 4600 21 11 08 21 25 06 --- 20 19 48 66.4 206.6 0.7 20.8 838 F 1 10185 21 25 21 19312+1950 20 20 04 66.4 206.8 0.7 20.9 10 1 3 10185 21 25 06 21 39 19 --- 20 34 04 65.0 214.1 1.0 26.4 838 F 1 15872 21 39 49 J1924+1540 20 34 34 59.9 215.1 1.2 26.5 14 1 4 15872 21 39 49 21 44 48 --- 20 39 34 59.3 217.2 1.2 28.0 299 R 1 17334 21 47 40 3C345 20 42 26 45.6 288.3 4.0 67.1 118 1 4 17334 21 47 40 21 50 39 --- 20 45 26 45.1 288.7 4.0 66.9 180 R 1 16137 21 52 24 J1751+0939 20 47 11 39.9 243.0 2.9 42.4 68 1 4 16137 21 52 24 21 55 23 =J1751+09 20 50 11 39.4 243.7 3.0 42.7 180 R 1 14940 21 56 34 J1924+1540 20 51 21 57.9 222.0 1.4 31.2 27 1 4 14940 21 56 34 22 01 33 --- 20 56 21 57.3 223.9 1.5 32.5 299 R 1 12946 22 02 03 19312+1950 20 56 51 62.3 224.5 1.4 33.8 14 1 4 12946 22 02 03 22 16 00 --- 21 10 51 60.4 230.1 1.6 37.5 838 R 1 7361 22 16 16 19312+1950 21 11 06 60.4 230.2 1.6 37.6 11 1 4 7361 22 16 00 22 30 13 --- 21 25 06 58.3 235.2 1.8 40.7 838 R 1 1674 22 30 44 J1924+1540 21 25 37 53.2 233.9 2.0 38.8 14 1 3 1674 22 30 44 22 35 43 --- 21 30 37 52.4 235.5 2.1 39.7 299 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 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