COVER INFORMATION Station: GBT_VLBA (Code Gb ) Experiment: High dynamic range map of SiO maser emission in IRC+10011 Exp. Code: BD103 Schedule Version: 1.00 Processed by SCHED version: NRAO internal release of 4 October 2004 PI: Desmurs, J.-F. Address: Observatorio Astronomico Nacional Phone: 34 1 527 01 07 EMAIL: desmurs@oan.es Fax: 34 1 527 19 35 Phone during observation: 34 1 527 01 07 Observing mode: VLBA 7mm-64-4-2: 7mm : 2 Pol & 2 spectral lines, 4MHz. Notes: This is a line experiment at 7mm using the HSA Delayed until early in trimester 2005-T1 for GBT to be equiped with a 43GHz receiver ** SWITCH PHAS CAL OFF ** please, thank you Schedule for GBT_VLBA (Code Gb ) Page 2 High dynamic range map of SiO maser emission in IRC+10011 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 1 Jan 2005 Day 1 --- Next scan frequencies: 42810.77 42870.09 43112.22 43112.22 Next BBC frequencies: 610.77 670.09 912.22 912.22 Next scan bandwidths: 8.00 8.00 8.00 8.00 20 26 08 3C454.3 21 53 07 64.0 144.7 -1.0 -28.1 0 1 1 0 20 26 08 20 31 07 --- 21 58 07 64.6 147.2 -0.9 -26.2 299 F 1 1995 20 33 09 IRC10011 22 00 09 41.4 109.1 -3.1 -49.3 19 1 1 1995 20 33 09 20 50 07 --- 22 17 09 44.5 112.8 -2.8 -47.7 1017 F 1 8776 20 52 08 3C454.3 22 19 11 66.5 158.5 -0.6 -17.4 13 1 1 8776 20 52 08 20 57 07 --- 22 24 11 66.8 161.4 -0.5 -15.0 299 F 1 10771 20 59 04 IRC10011 22 26 08 46.1 114.9 -2.7 -46.7 7 1 1 10771 20 59 04 21 16 01 --- 22 43 08 49.0 119.2 -2.4 -44.5 1017 F 1 17552 21 18 05 3C454.3 22 45 12 67.7 174.3 -0.1 -4.6 0 1 2 17552 21 18 05 21 23 04 --- 22 50 12 67.7 177.5 -0.1 -2.1 299 R 1 15557 21 25 09 IRC10011 22 52 17 50.6 121.7 -2.2 -43.1 0 1 2 15557 21 25 09 21 42 06 --- 23 09 17 53.3 126.8 -2.0 -40.0 1017 R 1 8776 21 44 10 J0237+28 23 11 22 46.5 86.7 -3.4 -63.2 25 1 2 8776 21 44 10 21 49 10 --- 23 16 22 47.4 87.4 -3.4 -63.3 299 R 1 6781 21 51 17 IRC10011 23 18 29 54.8 129.7 -1.8 -38.1 24 1 2 6781 21 51 17 22 08 14 --- 23 35 29 57.2 135.7 -1.5 -34.1 1017 R 1 0 22 10 19 J0237+28 23 37 35 51.6 90.6 -3.0 -63.4 18 1 3 0 22 10 19 22 15 18 --- 23 42 35 52.6 91.4 -2.9 -63.4 299 F 1 1995 22 17 26 IRC10011 23 44 43 58.4 139.3 -1.4 -31.6 16 1 3 1995 22 17 26 22 34 23 --- 00 01 43 60.4 146.4 -1.1 -26.4 1017 F 1 8776 22 36 28 J0237+28 00 03 49 56.7 95.0 -2.6 -63.0 8 1 3 8776 22 36 28 22 41 28 --- 00 08 49 57.7 95.9 -2.5 -62.8 299 F 1 10771 22 43 36 IRC10011 00 10 57 61.4 150.6 -0.9 -23.2 5 1 3 10771 22 43 36 23 00 33 --- 00 27 57 62.8 159.0 -0.6 -16.8 1017 F 1 17552 23 02 43 J0237+28 00 30 07 61.8 100.3 -2.1 -61.6 0 1 4 17552 23 02 43 23 07 42 --- 00 35 07 62.8 101.4 -2.1 -61.2 299 R 1 15557 Schedule for GBT_VLBA (Code Gb ) Page 3 High dynamic range map of SiO maser emission in IRC+10011 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 1 Jan 2005 Day 1 --- 23 09 58 IRC10011 00 37 24 63.4 163.9 -0.5 -12.9 0 1 4 15557 23 09 58 23 26 55 --- 00 54 24 64.0 173.1 -0.2 -5.5 1017 R 1 8776 23 29 18 J0237+28 00 56 46 66.9 107.0 -1.7 -58.8 0 1 4 8776 23 29 18 23 34 17 --- 01 01 46 67.8 108.5 -1.6 -58.0 299 R 1 6781 23 36 46 IRC10011 01 04 16 64.2 178.6 0.0 -1.1 0 1 4 6781 23 36 46 23 53 43 --- 01 21 16 64.0 188.1 0.2 6.5 1017 R 1 0 --- Start: Sat 1 Jan 2005 Day 1 -- Stop: Sun 2 Jan 2005 Day 2 --- 23 56 14 J0237+28 01 23 48 71.8 116.4 -1.2 -53.2 0 1 5 0 23 56 14 00 01 14 --- 01 28 48 72.7 118.6 -1.2 -51.8 299 F 1 1995 00 03 51 IRC10011 01 31 25 63.6 193.7 0.4 10.9 0 1 5 1995 00 03 51 00 20 48 --- 01 48 25 62.6 202.6 0.7 17.9 1017 F 1 8776 00 23 19 J0237+28 01 50 57 76.3 130.9 -0.8 -42.5 0 1 5 8776 00 23 19 00 28 19 --- 01 55 57 77.0 134.5 -0.7 -39.6 299 F 1 10771 00 30 52 IRC10011 01 58 31 61.7 207.5 0.9 21.8 0 1 5 10771 00 30 52 00 47 49 --- 02 15 31 60.0 215.3 1.1 27.6 1017 F 1 17552 00 50 02 J0237+28 02 17 44 79.5 154.7 -0.3 -22.5 0 1 6 17552 00 50 02 00 55 01 --- 02 22 44 79.9 160.4 -0.3 -17.4 299 R 1 15557 00 57 11 IRC10011 02 24 55 58.9 219.2 1.3 30.5 0 1 6 15557 00 57 11 01 14 09 --- 02 41 55 56.6 225.7 1.6 35.1 1017 R 1 8776 01 16 14 J0237+28 02 44 00 80.3 187.6 0.1 6.8 20 1 6 8776 01 16 14 01 21 13 --- 02 49 00 80.1 194.0 0.2 12.5 299 R 1 6781 01 23 26 IRC10011 02 51 14 55.3 229.0 1.7 37.3 24 1 6 6781 01 23 26 01 40 23 --- 03 08 14 52.7 234.5 2.0 40.8 1017 R 1 0 01 42 46 J0237+28 03 10 36 78.3 217.4 0.5 32.9 31 1 7 0 01 42 46 01 47 45 --- 03 15 36 77.6 221.8 0.6 36.5 299 F 1 1995 01 50 15 IRC10011 03 18 07 51.1 237.4 2.2 42.6 35 1 7 1995 01 50 15 02 07 12 --- 03 35 07 48.2 242.0 2.5 45.2 1017 F 1 8776 02 07 34 IRC10011 03 35 29 48.1 242.1 2.5 45.2 0 1 7 8776 02 07 34 02 17 33 --- 03 45 29 46.4 244.6 2.6 46.5 598 F 1 12765 Schedule for GBT_VLBA (Code Gb ) Page 4 High dynamic range map of SiO maser emission in IRC+10011 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) ---------------------------------------------------------------------------------------- --- Sun 2 Jan 2005 Day 2 --- 02 20 05 J0237+28 03 48 02 72.6 241.7 1.2 51.9 39 1 7 12765 02 20 05 02 25 04 --- 03 53 02 71.7 243.8 1.2 53.4 299 F 1 14760 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 gbt7mm_b8 in /home/filehost/cwalker/sched/catalogs/freq.dat LO1=36.95, LO2=15.75, LO3=10.5 Setup group: 3 Station: GBT_VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 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 The following frequency sets based on this setup were used. Frequency Set: 3 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 1 LO sum= 42810.77 42870.09 43112.22 43112.22 BBC fr= 610.77 670.09 912.22 912.22 Bandwd= 8.000 8.000 8.000 8.000 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, 18, 3, 19 barrel=roll_auto SOURCE LIST -- High dynamic range map of SiO maser emission in IRC+10011 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). Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Source position (RA/Dec) (B1950) (J2000) (Date) * IRC10011 01 03 48.090737 * 01 06 25.993800 01 06 41.379555 12 19 51.37931 * 12 35 53.28700 12 37 31.61343 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: 8.50 8.50 8.50 8.50 * J0237+28 02 34 55.589591 * 02 37 52.405678 02 38 10.153634 0234+285 28 35 11.40783 * 28 48 08.99008 28 49 36.24403 From catalog imbedded in main SCHED input file. ICRF - Ext.1 Source - 1998 IERS Annual Report Doppler based on other sources. * 3C454.3 22 51 29.520100 * 22 53 57.748300 22 54 11.347210 15 52 54.35016 * 16 08 53.56300 16 10 28.28372 From catalog imbedded in main SCHED input file. 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) IRC10011 98.5 J0237+28 123.5 3C454.3 71.2 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