COVER INFORMATION Station: VLBA_NL (Code Nl ) Experiment: 86GHz VLBI test between VLBA_NL and VLBA_PT Exp. Code: ts021a Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: Shep Doeleman Address: Haystack Observatory Off Route 40 Westford, MA 01886 USA Phone: 781-981-5407 EMAIL: sdoeleman@haystack.mit.edu Fax: 781-981-0590 Phone during observation: Observing mode: 86GHz (512 Mb/s) Notes: Schedule for VLBA_NL (Code Nl ) Page 2 86GHz VLBI test between VLBA_NL and VLBA_PT 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Thu 20 Dec 2007 Day 354 --- Next scan frequencies: 43121.54 43121.54 43121.54 43121.54 Next BBC frequencies: 721.54 721.54 721.54 721.54 Next scan bandwidths: 2.00 2.00 2.00 2.00 19 45 00 VXSGR 19 34 45 23.0 201.7 1.4 17.3 0 1 1 0 Stopped 19 45 10 --- 19 34 55 23.0 201.7 1.4 17.3 10 S 1 0 Source only 3.6 degrees from the Sun. 19 45 10 VXSGR 19 34 55 23.0 201.7 1.4 17.3 -4 1 1 0 Stopped 19 46 10 --- 19 35 55 22.9 202.0 1.5 17.5 56 S 1 0 Source only 3.6 degrees from the Sun. 19 46 10 VXSGR 19 35 55 22.9 202.0 1.5 17.5 -4 1 1 0 Stopped 19 47 10 --- 19 36 56 22.8 202.2 1.5 17.7 56 S 1 0 Source only 3.6 degrees from the Sun. Next scan frequencies: 86223.99 86223.99 86239.99 86239.99 86255.99 86255.99 86271.99 86271.99 Next BBC frequencies: 723.99 723.99 739.99 739.99 755.99 755.99 771.99 771.99 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 19 47 30 VXSGR 19 37 16 22.8 202.3 1.5 17.8 15 1 1 0 19 47 30 19 51 30 --- 19 41 16 22.5 203.2 1.5 18.5 240 F 1 15 19 47 31 Source only 3.6 degrees from the Sun. 19 53 00 SGRA 19 42 47 14.3 206.1 1.9 22.0 68 1 1 15 19 53 00 19 58 00 --- 19 47 47 13.9 207.1 2.0 22.9 300 F 1 35 19 53 01 Source only 5.8 degrees from the Sun. 19 59 00 SGRA 19 48 48 13.8 207.3 2.0 23.1 55 1 1 35 19 59 00 20 04 00 --- 19 53 48 13.3 208.4 2.1 23.9 300 F 1 54 19 59 01 Source only 5.8 degrees from the Sun. 20 05 00 VXSGR 19 54 49 21.4 206.4 1.8 21.0 38 1 1 54 20 05 00 20 10 00 --- 19 59 49 21.0 207.6 1.9 21.9 300 F 1 74 20 05 01 Source only 3.6 degrees from the Sun. 20 12 00 1749+096 20 01 50 47.0 231.0 2.2 36.0 62 1 1 74 20 12 00 20 17 00 --- 20 06 51 46.3 232.4 2.2 36.8 300 F 1 93 20 12 01 Schedule for VLBA_NL (Code Nl ) Page 3 86GHz VLBI test between VLBA_NL and VLBA_PT 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Thu 20 Dec 2007 Day 354 --- 20 19 00 1749+096 20 08 51 46.0 233.0 2.3 37.2 114 1 1 93 20 19 00 20 24 00 --- 20 13 52 45.3 234.4 2.4 38.0 300 F 1 112 20 19 01 Next scan frequencies: 43116.05 43116.05 43116.05 43116.05 Next BBC frequencies: 716.05 716.05 716.05 716.05 Next scan bandwidths: 2.00 2.00 2.00 2.00 20 26 00 RCAS 20 15 52 51.5 55.9 -3.7 -82.0 -5 1 1 112 Stopped 20 26 10 --- 20 16 02 51.5 55.9 -3.7 -82.0 5 S 1 112 20 28 10 RCAS 20 18 02 51.8 55.9 -3.7 -82.3 114 1 1 112 Stopped 20 29 10 --- 20 19 03 52.0 56.0 -3.7 -82.5 60 S 1 112 20 31 10 RCAS 20 21 03 52.3 56.0 -3.6 -82.8 114 1 1 112 Stopped 20 32 10 --- 20 22 03 52.5 56.1 -3.6 -83.0 60 S 1 112 Next scan frequencies: 86223.99 86223.99 86239.99 86239.99 86255.99 86255.99 86271.99 86271.99 Next BBC frequencies: 723.99 723.99 739.99 739.99 755.99 755.99 771.99 771.99 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 20 32 30 RCAS 20 22 23 52.5 56.1 -3.6 -83.1 15 1 1 112 20 32 30 20 37 30 --- 20 27 24 53.3 56.2 -3.5 -83.9 300 F 1 132 20 32 31 20 38 30 RCAS 20 28 24 53.4 56.2 -3.5 -84.1 54 1 1 132 20 38 30 20 43 30 --- 20 33 25 54.2 56.4 -3.4 -85.0 300 F 1 151 20 38 31 20 45 00 1921-293 20 34 55 17.2 195.8 1.2 13.5 -9 1 1 151 20 45 00 20 50 00 --- 20 39 56 16.9 197.0 1.2 14.4 291 F 1 170 20 45 01 20 52 00 3C454.3 20 41 56 51.8 122.0 -2.2 -41.2 44 1 1 170 20 52 00 20 57 00 --- 20 46 57 52.6 123.5 -2.1 -40.4 300 F 1 190 20 52 01 20 59 00 3C454.3 20 48 57 52.9 124.1 -2.1 -40.0 114 1 1 190 20 59 00 21 04 00 --- 20 53 58 53.7 125.7 -2.0 -39.1 300 F 1 209 20 59 01 Schedule for VLBA_NL (Code Nl ) Page 4 86GHz VLBI test between VLBA_NL and VLBA_PT 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Thu 20 Dec 2007 Day 354 --- Next scan frequencies: 43116.05 43116.05 43116.05 43116.05 Next BBC frequencies: 716.05 716.05 716.05 716.05 Next scan bandwidths: 2.00 2.00 2.00 2.00 21 06 00 RCAS 20 55 59 57.7 56.7 -3.0 -89.1 68 1 1 209 Stopped 21 06 10 --- 20 56 09 57.8 56.7 -3.0 -89.2 10 S 1 209 21 08 10 RCAS 20 58 09 58.1 56.7 -3.0 -89.6 114 1 1 209 Stopped 21 09 10 --- 20 59 09 58.2 56.7 -3.0 -89.8 60 S 1 209 21 11 10 RCAS 21 01 09 58.5 56.7 -3.0 -90.1 114 1 1 209 Stopped 21 12 10 --- 21 02 10 58.7 56.7 -2.9 -90.3 60 S 1 209 Next scan frequencies: 86223.99 86223.99 86239.99 86239.99 86255.99 86255.99 86271.99 86271.99 Next BBC frequencies: 723.99 723.99 739.99 739.99 755.99 755.99 771.99 771.99 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 21 13 10 RCAS 21 03 10 58.8 56.7 -2.9 -90.5 54 1 1 209 21 13 10 21 18 10 --- 21 08 11 59.6 56.7 -2.8 -91.5 300 F 1 228 21 13 11 21 20 10 3C454.3 21 10 11 56.0 131.0 -1.7 -35.9 64 1 1 228 21 20 10 21 25 10 --- 21 15 12 56.7 132.8 -1.7 -34.7 300 F 1 248 21 20 11 21 27 10 3C454.3 21 17 12 57.0 133.5 -1.6 -34.3 114 1 1 248 21 27 10 21 32 10 --- 21 22 13 57.7 135.4 -1.5 -33.1 300 F 1 267 21 27 11 21 34 10 3C454.3 21 24 13 57.9 136.1 -1.5 -32.6 114 1 1 267 21 34 10 21 39 10 --- 21 29 14 58.6 138.1 -1.4 -31.3 300 F 1 286 21 34 11 21 41 10 3C454.3 21 31 14 58.8 138.9 -1.4 -30.7 114 1 1 286 21 41 10 21 46 10 --- 21 36 15 59.4 140.9 -1.3 -29.3 300 F 1 306 21 41 11 21 48 10 3C454.3 21 38 15 59.6 141.7 -1.3 -28.8 114 1 1 306 21 48 10 21 53 10 --- 21 43 16 60.2 143.9 -1.2 -27.3 300 F 1 325 21 48 11 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/arana/cwalker/sched/setups/pt7mm.set Matches group v7mm_c8 in /home/arana/cwalker/sched/catalogs/freq.dat Setup group: 3 Station: VLBA_NL Total bit rate: 256 Format: NONE Bits per sample: 2 Sample rate: 32.000 Number of channels: 4 Setup not used for recording data. 1st LO= 42400.00 42400.00 42400.00 42400.00 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 7.6 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= 43121.54 43121.54 43121.54 43121.54 BBC fr= 721.54 721.54 721.54 721.54 Bandwd= 2.000 2.000 2.000 2.000 Frequency Set: 5 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 3 LO sum= 43116.05 43116.05 43116.05 43116.05 BBC fr= 716.05 716.05 716.05 716.05 Bandwd= 2.000 2.000 2.000 2.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 460 460 1460 1460 0 0 0 0 PCALFR2= 460 460 1460 1460 0 0 0 0 Pulse cal detection set: 3 PCAL = 1MHZ PCALXB1= S1 S3 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 950 950 1950 1950 0 0 0 0 PCALFR2= 950 950 1950 1950 0 0 0 0 Setup file: 3mm_usb.set Matches group v3mm_ff in /home/arana/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA_NL Total bit rate: 512 Format: VLBA1:4 Bits per sample: 2 Sample rate: 32.000 Number of channels: 8 Speedup factor: 1.00 Disk used to record data. 1st LO= 85500.00 85500.00 85500.00 85500.00 85500.00 85500.00 85500.00 85500.00 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = B D B D B D B D VLBA FE= omit 3mm omit 3mm VLBA Synth= 12.9 15.4 12.1 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: 2 LO sum= 86223.99 86223.99 86239.99 86239.99 86255.99 86255.99 86271.99 86271.99 BBC fr= 723.99 723.99 739.99 739.99 755.99 755.99 771.99 771.99 Bandwd= 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 2 PCAL = 1MHZ PCALXB1= S1 S3 S5 S7 S1 S3 S5 S7 PCALXB2= S2 S4 S6 S8 S2 S4 S6 S8 PCALFR1= 10 10 10 10 13010 13010 13010 13010 PCALFR2= 10 10 10 10 13010 13010 13010 13010 Track assignments are: track1= 2, 18, 3, 19, 66, 82, 67, 83 barrel=roll_off SOURCE LIST -- 86GHz VLBI test between VLBA_NL and VLBA_PT 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) Error (B1950) (J2000) (Date) (mas) * RCAS 23 55 52.000023 * 23 58 24.734000 23 58 49.041090 0.00 51 06 37.75889 * 51 23 19.57000 51 26 18.71612 0.00 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: 24.00 24.00 24.00 24.00 0.250 scan hours, 0.250 baseline hours above horizon. * VXSGR 18 05 02.959213 * 18 08 04.040000 18 08 31.967450 0.00 -22 13 55.57754 *-22 13 26.90000 -22 13 28.64821 0.00 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: 7.00 7.00 7.00 7.00 0.150 scan hours, 0.150 baseline hours above horizon. * SGRA 17 42 29.310026 * 17 45 40.041000 17 46 09.420446 0.00 -28 59 18.53533 *-29 00 28.12000 -29 00 45.02545 0.00 From catalog imbedded in main SCHED input file. 0.167 scan hours, 0.167 baseline hours above horizon. J1751+0939 17 49 10.387930 * 17 51 32.818573 17 51 54.546631 0.30 * 1749+096 09 39 42.82591 * 09 39 00.72846 09 38 47.57931 0.20 J1751+09 /home/arana/cwalker/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.167 scan hours, 0.167 baseline hours above horizon. J1924-2914 19 21 42.234130 * 19 24 51.055957 19 25 20.324933 0.23 * 1921-293 -29 20 26.35400 *-29 14 30.12110 -29 13 41.69121 0.70 J1924-29 /home/arana/cwalker/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.083 scan hours, 0.081 baseline hours above horizon. J2253+1608 22 51 29.519744 * 22 53 57.747943 22 54 21.314644 0.31 2251+158 15 52 54.34806 * 16 08 53.56089 16 11 33.35933 0.20 * 3C454.3 /home/arana/cwalker/sched/catalogs/sources.vlba J2253+16 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.583 scan hours, 0.583 baseline hours above horizon. 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) RCAS 108.9 VXSGR 3.6 SGRA 5.8 1749+096 33.1 1921-293 21.3 3C454.3 83.4 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