COVER INFORMATION Station: VLBA_MK (Code Mk ) Experiment: High dynamic range map of SiO maser emission in IRC+10011 Exp. Code: BD103 Schedule Version: 2.00 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 VLBA_MK (Code Mk ) 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) ---------------------------------------------------------------------------------------- --- Sun 13 Feb 2005 Day 44 --- Next scan frequencies: 42811.49 42870.82 43112.95 43112.95 Next BBC frequencies: 611.49 670.82 912.95 912.95 Next scan bandwidths: 8.00 8.00 8.00 8.00 21 02 45 J0237+28 20 16 54 5.0 61.1 -6.4 -70.1 0 1 1 0 21 02 45 21 07 45 --- 20 21 55 6.0 61.5 -6.3 -70.7 300 F 1 2000 21 10 22 IRC10011 20 24 32 22.3 84.1 -4.7 -73.5 118 1 1 2000 21 10 22 21 27 22 --- 20 41 34 26.3 85.4 -4.4 -73.9 1020 F 1 8800 21 29 54 J0237+28 20 44 07 10.6 63.0 -5.9 -73.1 115 1 1 8800 21 29 54 21 34 54 --- 20 49 08 11.7 63.3 -5.8 -73.7 300 F 1 10800 21 37 29 IRC10011 20 51 44 28.7 86.1 -4.2 -74.1 115 1 1 10800 21 37 29 21 54 29 --- 21 08 47 32.7 87.4 -4.0 -74.4 1020 F 1 17600 21 56 47 J0237+28 21 11 04 16.3 64.6 -5.5 -76.0 99 1 2 17600 21 56 47 22 01 47 --- 21 16 05 17.4 64.9 -5.4 -76.5 300 R 1 15600 22 04 02 IRC10011 21 18 21 35.0 88.2 -3.8 -74.5 94 1 2 15600 22 04 02 22 21 02 --- 21 35 24 39.0 89.6 -3.5 -74.6 1020 R 1 8800 22 23 04 J0237+28 21 37 26 22.0 66.0 -5.0 -78.8 83 1 2 8800 22 23 04 22 28 04 --- 21 42 27 23.1 66.2 -4.9 -79.3 300 R 1 6800 22 30 14 IRC10011 21 44 38 41.1 90.3 -3.4 -74.6 88 1 2 6800 22 30 14 22 47 14 --- 22 01 40 45.1 91.9 -3.1 -74.5 1020 R 1 0 22 47 37 IRC10011 22 02 03 45.2 91.9 -3.1 -74.5 18 1 3 0 22 47 37 22 58 37 --- 22 13 05 47.8 92.9 -2.9 -74.3 660 F 1 4400 23 00 54 3C48 22 15 23 43.2 62.6 -3.4 -93.4 111 1 3 4400 23 00 54 23 05 54 --- 22 20 24 44.3 62.5 -3.3 -94.1 300 F 1 6400 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: 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 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= 42811.49 42870.82 43112.95 43112.95 BBC fr= 611.49 670.82 912.95 912.95 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 40.892562 12 19 51.37931 * 12 35 53.28700 12 37 28.65728 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 09.547022 0234+285 28 35 11.40783 * 28 48 08.99008 28 49 35.05355 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 29.519733 * 22 53 57.747932 22 54 11.143027 15 52 54.34806 * 16 08 53.56089 16 10 22.78149 From catalog imbedded in main SCHED input file. ICRF - Ext.1 Source - 1998 IERS Annual Report Doppler based on other sources. * 3C48 01 34 49.826365 * 01 37 41.299431 01 37 57.414758 32 54 20.25881 * 33 09 35.13299 33 11 13.75153 From catalog imbedded in main SCHED input file. ICRF - Ext.1 Source - 1998 IERS Annual Report 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 55.1 J0237+28 81.1 3C454.3 33.3 3C48 71.3 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