COVER INFORMATION Station: VLA27 (Code Y ) 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 VLA27 (Code Y ) 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: 601.39 660.72 602.85 602.85 Next scan bandwidths: 8.00 8.00 8.00 8.00 17 06 00 3C454.3 19 30 51 41.2 98.3 -3.4 -58.6 0 1 1 0 17 06 00 17 11 00 --- 19 35 52 42.2 99.2 -3.3 -58.4 300 F 1 2000 17 13 10 IRC10011 19 38 02 13.5 83.7 -5.5 -57.5 28 1 1 2000 17 13 10 17 30 10 --- 19 55 05 17.0 86.0 -5.2 -57.9 1020 F 1 8800 17 32 17 3C454.3 19 57 13 46.5 103.0 -2.9 -57.2 24 1 1 8800 17 32 17 17 37 17 --- 20 02 13 47.6 104.0 -2.9 -56.8 300 F 1 10800 17 39 20 IRC10011 20 04 17 18.9 87.3 -5.0 -58.0 22 1 1 10800 17 39 20 17 56 20 --- 20 21 20 22.4 89.6 -4.8 -58.1 1020 F 1 17600 17 58 22 3C454.3 20 23 22 51.8 108.4 -2.5 -54.9 19 1 2 17600 17 58 22 18 03 22 --- 20 28 23 52.7 109.5 -2.4 -54.4 300 R 1 15600 18 05 20 IRC10011 20 30 21 24.3 90.9 -4.6 -58.1 17 1 2 15600 18 05 20 18 22 20 --- 20 47 24 27.8 93.3 -4.3 -57.9 1020 R 1 8800 18 24 23 J0237+28 20 49 27 17.8 66.8 -5.8 -60.3 68 1 2 8800 18 24 23 18 29 23 --- 20 54 28 18.8 67.4 -5.7 -60.8 300 R 1 6800 18 31 29 IRC10011 20 56 34 29.7 94.7 -4.2 -57.8 70 1 2 6800 18 31 29 18 48 29 --- 21 13 36 33.2 97.3 -3.9 -57.3 1020 R 1 0 18 50 33 J0237+28 21 15 41 22.9 69.7 -5.4 -62.5 68 1 3 0 18 50 33 18 55 33 --- 21 20 42 23.8 70.3 -5.3 -62.9 300 F 1 2000 18 57 40 IRC10011 21 22 49 35.1 98.8 -3.7 -57.0 69 1 3 2000 18 57 40 19 14 40 --- 21 39 52 38.6 101.6 -3.4 -56.2 1020 F 1 8800 19 16 45 J0237+28 21 41 57 28.0 72.6 -4.9 -64.4 66 1 3 8800 19 16 45 19 21 45 --- 21 46 58 29.0 73.1 -4.9 -64.8 300 F 1 10800 19 23 52 IRC10011 21 49 06 40.4 103.3 -3.3 -55.7 67 1 3 10800 19 23 52 19 40 52 --- 22 06 09 43.8 106.5 -3.0 -54.5 1020 F 1 17600 19 42 58 J0237+28 22 08 14 33.2 75.4 -4.5 -66.2 64 1 4 17600 19 42 58 19 47 58 --- 22 13 15 34.2 75.9 -4.4 -66.5 300 R 1 15600 Schedule for VLA27 (Code Y ) 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) ---------------------------------------------------------------------------------------- --- Sun 13 Feb 2005 Day 44 --- 19 50 06 IRC10011 22 15 24 45.7 108.4 -2.9 -53.7 64 1 4 15600 19 50 06 20 07 06 --- 22 32 26 49.0 112.1 -2.6 -51.9 1020 R 1 8800 20 09 13 J0237+28 22 34 34 38.5 78.2 -4.1 -67.7 62 1 4 8800 20 09 13 20 14 13 --- 22 39 35 39.6 78.7 -4.0 -68.0 300 R 1 6800 20 16 27 IRC10011 22 41 50 50.8 114.3 -2.4 -50.7 65 1 4 6800 20 16 27 20 33 27 --- 22 58 52 53.9 118.7 -2.1 -48.1 1020 R 1 0 20 35 48 J0237+28 23 01 13 44.0 81.0 -3.6 -69.0 69 1 5 0 20 35 48 20 40 48 --- 23 06 14 45.0 81.6 -3.5 -69.3 300 F 1 2000 20 43 15 IRC10011 23 08 41 55.7 121.5 -2.0 -46.3 72 1 5 2000 20 43 15 21 00 15 --- 23 25 44 58.6 127.0 -1.7 -42.7 1020 F 1 8800 21 02 45 J0237+28 23 28 15 49.5 84.0 -3.2 -70.1 71 1 5 8800 21 02 45 21 07 45 --- 23 33 16 50.6 84.6 -3.1 -70.3 300 F 1 10800 21 10 22 IRC10011 23 35 53 60.2 130.7 -1.5 -40.1 72 1 5 10800 21 10 22 21 27 22 --- 23 52 55 62.8 137.6 -1.2 -34.9 1020 F 1 17600 21 29 54 J0237+28 23 55 28 55.1 87.3 -2.7 -70.8 62 1 6 17600 21 29 54 21 34 54 --- 00 00 29 56.2 87.9 -2.6 -70.9 300 R 1 15600 21 37 29 IRC10011 00 03 05 64.1 142.2 -1.1 -31.3 59 1 6 15600 21 37 29 21 54 29 --- 00 20 08 66.1 151.0 -0.8 -24.3 1020 R 1 8800 21 56 47 J0237+28 00 22 25 60.7 90.9 -2.3 -71.0 32 1 6 8800 21 56 47 22 01 47 --- 00 27 26 61.8 91.7 -2.2 -70.9 300 R 1 6800 22 04 02 IRC10011 00 29 42 67.0 156.4 -0.6 -19.9 23 1 6 6800 22 04 02 22 21 02 --- 00 46 45 68.1 166.9 -0.3 -11.1 1020 R 1 0 22 23 04 J0237+28 00 48 47 66.2 95.2 -1.8 -70.3 0 1 7 0 22 23 04 22 28 04 --- 00 53 48 67.2 96.2 -1.7 -70.0 300 F 1 2000 22 30 14 IRC10011 00 55 59 68.4 172.9 -0.2 -6.0 0 1 7 2000 22 30 14 22 47 14 --- 01 13 01 68.5 184.2 0.1 3.6 1020 F 1 8800 22 47 37 IRC10011 01 13 24 68.5 184.5 0.1 3.8 8 1 7 8800 22 47 37 22 58 37 --- 01 24 26 68.2 191.7 0.3 9.9 660 F 1 13200 Schedule for VLA27 (Code Y ) 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 13 Feb 2005 Day 44 --- 23 00 54 3C48 01 26 44 87.5 110.1 -0.2 -68.3 0 1 7 13200 23 00 54 23 05 54 --- 01 31 45 88.4 124.1 -0.1 -55.0 300 F 1 15200 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: 4 Station: VLA27 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= 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= 42811.49 42870.82 43112.95 43112.95 BBC fr= 601.39 660.72 602.85 602.85 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 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 -- 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