COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: GBT test @ 7mm Exp. Code: tg002 Schedule Version: 1.00 Processed by SCHED version: Release of 18 Sept. 2003 PI: V. Dhawan Address: NRAO, P. O. Box O Socorro, NM 87801 USA Phone: 505-835-7378 EMAIL: vdhawan@nrao.edu Fax: 505-835-7027 Phone during observation: 505-835-9175 Observing mode: VLBA Notes: GBT test @ 7mm Schedule for VLBA_HN (Code Hn ) Page 2 GBT test @ 7mm 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) ---------------------------------------------------------------------------------------- --- Mon 5 Jan 2004 Day 5 --- Next scan frequencies: 43111.15 43111.15 43161.13 43161.13 Next BBC frequencies: 711.15 711.15 761.13 761.13 Next scan bandwidths: 2.00 2.00 2.00 2.00 06 02 00 IKTAU 08 10 49 26.5 260.7 4.3 47.5 0 1 1 0 06 02 00 06 12 00 --- 08 20 50 24.7 262.5 4.5 47.8 600 F 1 4000 Next scan frequencies: 43209.49 43209.49 43217.49 43217.49 Next BBC frequencies: 809.49 809.49 817.49 817.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 06 14 00 J0423-0120 08 22 51 20.6 247.4 4.0 42.6 104 1 1 4000 06 14 00 06 24 00 --- 08 32 52 18.9 249.4 4.2 43.3 600 F 1 8000 06 26 00 J0359+5057 08 34 53 44.1 305.2 4.6 71.9 64 1 1 8000 06 26 00 06 36 00 --- 08 44 54 42.6 305.9 4.8 70.4 600 F 1 12000 Next scan frequencies: 43117.76 43117.76 43167.76 43167.76 Next BBC frequencies: 717.76 717.76 767.76 767.76 Next scan bandwidths: 2.00 2.00 2.00 2.00 06 38 00 ORIIRC2 08 46 54 25.2 234.7 3.2 36.9 67 1 1 12000 06 38 00 06 48 00 --- 08 56 56 23.6 236.8 3.4 38.0 600 F 1 16000 Next scan frequencies: 43122.37 43122.37 43172.37 43172.37 Next BBC frequencies: 722.37 722.37 772.37 772.37 06 50 00 RLEO 08 58 56 56.7 157.8 -0.8 -16.4 48 1 2 16000 06 50 00 07 00 00 --- 09 08 58 57.4 162.2 -0.6 -13.2 600 R 1 15200 Next scan frequencies: 43111.15 43111.15 43161.13 43161.13 Next BBC frequencies: 711.15 711.15 761.13 761.13 07 02 00 IKTAU 09 10 58 15.5 271.3 5.3 48.3 30 1 2 15200 07 02 00 07 12 00 --- 09 21 00 13.7 273.0 5.5 48.2 600 R 1 11200 Schedule for VLBA_HN (Code Hn ) Page 3 GBT test @ 7mm 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) ---------------------------------------------------------------------------------------- --- Mon 5 Jan 2004 Day 5 --- Next scan frequencies: 43209.49 43209.49 43217.49 43217.49 Next BBC frequencies: 809.49 809.49 817.49 817.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 07 26 00 J0359+5057 09 35 02 35.4 309.9 5.6 63.2 791 1 2 11200 07 26 00 07 36 00 --- 09 45 04 34.0 310.7 5.8 61.8 600 R 1 7200 Next scan frequencies: 43117.76 43117.76 43167.76 43167.76 Next BBC frequencies: 717.76 717.76 767.76 767.76 Next scan bandwidths: 2.00 2.00 2.00 2.00 07 38 00 ORIIRC2 09 47 04 15.6 246.9 4.2 42.6 71 1 2 7200 07 38 00 07 48 00 --- 09 57 06 13.9 248.8 4.4 43.3 600 R 1 3200 Next scan frequencies: 43122.37 43122.37 43172.37 43172.37 Next BBC frequencies: 722.37 722.37 772.37 772.37 07 50 00 RLEO 09 59 06 58.4 185.3 0.2 4.0 25 1 3 3200 07 50 00 08 00 00 --- 10 09 08 58.1 189.9 0.4 7.4 600 F 1 800 Next scan frequencies: 43209.49 43209.49 43217.49 43217.49 Next BBC frequencies: 809.49 809.49 817.49 817.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 08 02 00 J0359+5057 10 11 08 30.4 313.2 6.2 58.0 32 1 3 800 08 02 00 08 12 00 --- 10 21 10 29.1 314.2 6.4 56.5 600 F 1 4800 Next scan frequencies: 43122.37 43122.37 43172.37 43172.37 Next BBC frequencies: 722.37 722.37 772.37 772.37 Next scan bandwidths: 2.00 2.00 2.00 2.00 08 26 00 RLEO 10 35 12 56.8 201.6 0.8 16.0 759 1 3 4800 08 26 00 08 36 00 --- 10 45 14 56.1 205.8 1.0 19.0 600 F 1 8800 Schedule for VLBA_HN (Code Hn ) Page 4 GBT test @ 7mm 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) ---------------------------------------------------------------------------------------- --- Mon 5 Jan 2004 Day 5 --- Next scan frequencies: 43209.49 43209.49 43217.49 43217.49 Next BBC frequencies: 809.49 809.49 817.49 817.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 08 38 00 J0359+5057 10 47 14 25.8 316.8 6.8 52.7 40 1 3 8800 08 38 00 08 48 00 --- 10 57 16 24.5 317.9 7.0 51.2 600 F 1 12800 Next scan frequencies: 43122.37 43122.37 43172.37 43172.37 Next BBC frequencies: 722.37 722.37 772.37 772.37 Next scan bandwidths: 2.00 2.00 2.00 2.00 08 50 00 RLEO 10 59 16 54.9 211.5 1.2 23.0 43 1 3 12800 08 50 00 09 00 00 --- 11 09 18 53.9 215.4 1.4 25.6 600 F 1 16800 Next scan frequencies: 43209.49 43209.49 43217.49 43217.49 Next BBC frequencies: 809.49 809.49 817.49 817.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 09 02 00 J0359+5057 11 11 18 22.8 319.5 7.2 49.1 45 1 4 16800 09 02 00 09 12 00 --- 11 21 20 21.6 320.6 7.4 47.6 600 R 1 14400 Next scan frequencies: 43122.37 43122.37 43172.37 43172.37 Next BBC frequencies: 722.37 722.37 772.37 772.37 Next scan bandwidths: 2.00 2.00 2.00 2.00 09 14 00 RLEO 11 23 20 52.3 220.4 1.6 29.0 47 1 4 14400 09 14 00 09 24 00 --- 11 33 22 51.0 223.9 1.8 31.2 600 R 1 10400 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/v7mm-128-4-2.set Matches group v7mm_c8 in /home/arana/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= 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= 43111.15 43111.15 43161.13 43161.13 BBC fr= 711.15 711.15 761.13 761.13 Bandwd= 2.000 2.000 2.000 2.000 Frequency Set: 3 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 2 LO sum= 43209.49 43209.49 43217.49 43217.49 BBC fr= 809.49 809.49 817.49 817.49 Bandwd= 8.000 8.000 8.000 8.000 Frequency Set: 5 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 3 LO sum= 43117.76 43117.76 43167.76 43167.76 BBC fr= 717.76 717.76 767.76 767.76 Bandwd= 2.000 2.000 2.000 2.000 Frequency Set: 7 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 4 LO sum= 43122.37 43122.37 43172.37 43172.37 BBC fr= 722.37 722.37 772.37 772.37 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= 850 870 1850 1870 0 0 0 0 PCALFR2= 850 870 1850 1870 0 0 0 0 Pulse cal detection set: 2 PCAL = 1MHZ PCALXB1= S1 S3 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 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= 240 240 1240 1240 0 0 0 0 PCALFR2= 240 240 1240 1240 0 0 0 0 Pulse cal detection set: 4 PCAL = 1MHZ PCALXB1= S1 S3 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 630 630 1630 1630 0 0 0 0 PCALFR2= 630 630 1630 1630 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto SOURCE LIST -- GBT test @ 7mm 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) * IKTAU 03 50 43.603662 * 03 53 28.710000 03 53 42.141242 11 15 31.94775 * 11 24 22.60000 11 25 07.92478 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: 35.00 35.00 35.00 35.00 * ORIIRC2 05 32 47.025524 * 05 35 14.505000 05 35 26.949067 -05 24 23.87948 *-05 22 30.45000 -05 22 19.38613 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: -5.00 -5.00 -5.00 -5.00 * RLEO 09 44 52.219425 * 09 47 33.490000 09 47 46.727021 11 39 40.09214 * 11 25 43.99000 11 24 38.86258 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: 3.00 3.00 3.00 3.00 * J0423-0120 04 20 43.539850 * 04 23 15.800727 04 23 28.398969 -01 27 28.70002 *-01 20 33.06531 -01 19 59.29262 From catalog imbedded in main SCHED input file. * J0359+5057 03 55 45.261360 * 03 59 29.747261 03 59 48.099397 50 49 20.28556 * 50 57 50.16151 50 58 42.68317 From catalog imbedded in main SCHED input file. 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) IKTAU 133.8 ORIIRC2 144.9 RLEO 139.0 J0423-0120 134.5 J0359+5057 134.9 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