COVER INFORMATION Station: ARECIBO (Code Ar ) Experiment: Continuum and HI 21cm Absorption toward NGC 2623 Exp. Code: bm176 Schedule Version: 1.00 Processed by SCHED version: Release of 02 July 2002 PI: E. Momjian Address: NRAO / AOC P.O. Box O Socorro, NM 87801, USA Phone: 505-835-7457 EMAIL: emomjian@nrao.edu Fax: 505-835-7027 Phone during observation: Observing mode: 21cm 128-4-2 Notes: Schedule for ARECIBO (Code Ar ) Page 2 Continuum and HI 21cm Absorption toward NGC 2623 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 4 Feb 2003 Day 35 --- Next scan frequencies: 1390.59 1390.59 1398.44 1398.44 Next BBC frequencies: 774.41 774.41 766.56 766.56 Next scan bandwidths: 8.00 8.00 8.00 8.00 02 54 00 J0830+2 07 22 28 73.0 427.0 -1.1 -106.8 0 1 1 0 02 54 00 02 58 00 --- 07 26 28 73.9 426.0 -1.1 -108.1 240 F 1 1600 02 59 00 J0837+24 07 27 29 72.4 425.1 -1.2 -108.4 23 1 1 1600 02 59 00 03 00 00 --- 07 28 29 72.6 424.8 -1.2 -108.7 60 F 1 2000 03 00 00 NGC2623 07 28 29 72.2 422.4 -1.2 -111.0 -13 1 1 2000 03 00 00 03 03 00 --- 07 31 29 72.8 421.6 -1.1 -112.1 167 F 1 3200 03 03 00 J0837+24 07 31 29 73.3 424.1 -1.1 -109.8 -13 1 1 3200 03 03 00 03 04 40 --- 07 33 10 73.6 423.6 -1.1 -110.4 87 F 1 3867 03 04 40 NGC2623 07 33 10 73.1 421.1 -1.1 -112.7 -13 1 1 3867 03 04 40 03 07 40 --- 07 36 10 73.8 420.1 -1.0 -114.0 167 F 1 5067 03 07 40 J0837+24 07 36 10 74.3 422.7 -1.0 -111.6 -14 1 1 5067 03 07 40 03 09 20 --- 07 37 50 74.6 422.2 -1.0 -112.2 86 F 1 5733 03 09 20 NGC2623 07 37 50 74.1 419.6 -1.0 -114.7 -14 1 1 5733 03 09 20 03 12 20 --- 07 40 51 74.7 418.5 -1.0 -116.1 166 F 1 6933 03 12 20 J0837+24 07 40 51 75.2 421.2 -1.0 -113.5 -14 1 1 6933 03 12 20 03 14 00 --- 07 42 31 75.6 420.6 -0.9 -114.3 86 F 1 7600 03 14 00 NGC2623 07 42 31 75.1 417.8 -0.9 -116.9 -14 1 1 7600 03 14 00 03 17 00 --- 07 45 32 75.7 416.6 -0.9 -118.4 166 F 1 8800 03 17 00 J0837+24 07 45 32 76.2 419.4 -0.9 -115.8 -15 1 1 8800 03 17 00 03 18 40 --- 07 47 12 76.5 418.7 -0.8 -116.6 85 F 1 9467 03 18 40 NGC2623 07 47 12 76.0 415.8 -0.9 -119.3 -15 1 1 9467 03 18 40 03 21 40 --- 07 50 12 76.6 414.4 -0.8 -121.0 165 F 1 10667 03 21 40 J0837+24 07 50 12 77.1 417.3 -0.8 -118.3 -16 1 1 10667 03 21 40 03 23 20 --- 07 51 53 77.5 416.5 -0.8 -119.3 84 F 1 11333 03 23 20 NGC2623 07 51 53 76.9 413.6 -0.8 -122.0 -16 1 1 11333 03 23 20 03 26 20 --- 07 54 53 77.5 411.9 -0.7 -124.0 164 F 1 12533 Schedule for ARECIBO (Code Ar ) Page 3 Continuum and HI 21cm Absorption toward NGC 2623 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 4 Feb 2003 Day 35 --- 03 26 20 J0837+24 07 54 53 78.1 414.8 -0.7 -121.2 -16 1 1 12533 03 26 20 03 28 00 --- 07 56 33 78.4 413.9 -0.7 -122.3 84 F 1 13200 03 28 00 NGC2623 07 56 33 77.8 410.9 -0.7 -125.1 -17 1 1 13200 03 28 00 03 31 00 --- 07 59 34 78.3 409.0 -0.7 -127.4 163 F 1 14400 03 31 00 J0837+24 07 59 34 79.0 412.0 -0.6 -124.5 -17 1 1 14400 03 31 00 03 32 40 --- 08 01 14 79.3 410.8 -0.6 -125.8 83 F 1 15067 03 32 40 NGC2623 08 01 14 78.6 407.8 -0.6 -128.7 -17 1 1 15067 03 32 40 03 35 40 --- 08 04 15 79.1 405.5 -0.6 -131.2 163 F 1 16267 03 35 40 J0837+24 08 04 15 79.8 408.5 -0.6 -128.4 -18 1 1 16267 03 35 40 03 37 20 --- 08 05 55 80.1 407.2 -0.5 -129.9 82 F 1 16933 03 39 00 OJ287 08 07 35 78.7 439.2 -0.8 -96.9 21 1 2 16933 03 39 00 03 44 00 --- 08 12 36 79.8 438.3 -0.7 -98.2 300 R 1 14933 03 45 40 J0830+2 08 14 16 83.0 393.1 -0.3 -145.4 -11 1 2 14933 03 45 40 03 49 40 --- 08 18 17 83.5 386.5 -0.2 -152.3 229 R 1 13333 03 50 40 J0837+24 08 19 17 82.2 392.6 -0.3 -145.7 27 1 2 13333 03 50 40 03 51 40 --- 08 20 17 82.3 391.2 -0.3 -147.2 60 R 1 12933 03 51 40 NGC2623 08 20 17 81.5 389.0 -0.3 -149.3 -21 1 2 12933 03 51 40 03 54 40 --- 08 23 18 81.8 384.9 -0.3 -153.7 159 R 1 11733 03 54 40 J0837+24 08 23 18 82.6 386.7 -0.2 -152.0 -22 1 2 11733 03 54 40 03 56 20 --- 08 24 58 82.8 384.0 -0.2 -154.8 78 R 1 11067 03 56 20 NGC2623 08 24 58 82.0 382.5 -0.2 -156.2 -22 1 2 11067 03 56 20 03 59 20 --- 08 27 59 82.2 377.9 -0.2 -161.1 158 R 1 9867 03 59 20 J0837+24 08 27 59 83.1 378.9 -0.2 -160.2 -23 1 2 9867 03 59 20 04 01 00 --- 08 29 39 83.2 375.9 -0.1 -163.4 77 R 1 9200 04 01 00 NGC2623 08 29 39 82.3 375.2 -0.1 -163.9 -23 1 2 9200 04 01 00 04 04 00 --- 08 32 39 82.5 370.3 -0.1 -169.2 157 R 1 8000 04 04 00 J0837+24 08 32 39 83.3 370.2 -0.1 -169.3 -23 1 2 8000 04 04 00 04 05 40 --- 08 34 20 83.4 367.0 -0.1 -172.7 77 R 1 7333 04 05 40 NGC2623 08 34 20 82.5 367.4 -0.1 -172.2 -23 1 2 7333 04 05 40 04 08 40 --- 08 37 20 82.6 362.2 0.0 -177.7 157 R 1 6133 Schedule for ARECIBO (Code Ar ) Page 4 Continuum and HI 21cm Absorption toward NGC 2623 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 4 Feb 2003 Day 35 --- 04 08 40 J0837+24 08 37 20 83.4 361.1 0.0 -178.9 -22 1 2 6133 04 08 40 04 10 20 --- 08 39 00 83.4 357.7 0.0 177.6 78 R 1 5467 04 10 20 NGC2623 08 39 00 82.6 359.3 0.0 179.2 -22 1 2 5467 04 10 20 04 13 20 --- 08 42 01 82.6 354.0 0.1 173.7 158 R 1 4267 04 13 20 J0837+24 08 42 01 83.4 351.8 0.1 171.4 -22 1 2 4267 04 13 20 04 15 00 --- 08 43 41 83.3 348.6 0.1 168.1 78 R 1 3600 04 15 00 NGC2623 08 43 41 82.5 351.2 0.1 170.7 -21 1 2 3600 04 15 00 04 18 00 --- 08 46 42 82.4 346.1 0.1 165.4 159 R 1 2400 04 18 00 J0837+24 08 46 42 83.1 343.0 0.1 162.2 -20 1 2 2400 04 18 00 04 19 40 --- 08 48 22 83.0 340.0 0.2 159.1 80 R 1 1733 04 19 40 NGC2623 08 48 22 82.3 343.4 0.2 162.5 -20 1 2 1733 04 19 40 04 22 40 --- 08 51 22 82.0 338.8 0.2 157.6 160 R 1 533 04 23 20 J0837+24 08 52 02 82.7 333.9 0.2 152.6 23 1 3 533 04 23 20 04 25 00 --- 08 53 43 82.5 331.4 0.3 149.9 100 F 1 1200 04 25 00 NGC2623 08 53 43 81.8 335.4 0.3 153.9 -18 1 3 1200 04 25 00 04 28 00 --- 08 56 43 81.5 331.2 0.3 149.5 162 F 1 2400 04 28 00 J0837+24 08 56 43 82.1 327.1 0.3 145.3 -17 1 3 2400 04 28 00 04 29 40 --- 08 58 23 81.9 324.9 0.3 143.0 83 F 1 3067 04 30 40 J0830+2 08 59 24 81.2 312.7 0.5 130.1 29 1 3 3067 04 30 40 04 34 40 --- 09 03 24 80.5 309.1 0.5 126.2 240 F 1 4667 04 36 40 J0837+24 09 05 25 80.8 316.9 0.5 134.3 99 1 3 4667 04 36 40 04 37 40 --- 09 06 25 80.7 315.9 0.5 133.3 60 F 1 5067 04 37 40 NGC2623 09 06 25 80.2 320.2 0.5 137.6 -14 1 3 5067 04 37 40 04 40 40 --- 09 09 25 79.7 317.4 0.5 134.5 166 F 1 6267 04 40 40 J0837+24 09 09 25 80.2 313.2 0.5 130.3 -13 1 3 6267 04 40 40 04 42 20 --- 09 11 06 79.9 311.8 0.6 128.7 87 F 1 6933 04 42 20 NGC2623 09 11 06 79.4 316.0 0.5 132.9 -12 1 3 6933 04 42 20 04 45 20 --- 09 14 06 78.9 313.6 0.6 130.2 168 F 1 8133 04 45 20 J0837+24 09 14 06 79.3 309.5 0.6 126.1 -12 1 3 8133 04 45 20 04 47 00 --- 09 15 46 79.0 308.3 0.6 124.8 88 F 1 8800 Schedule for ARECIBO (Code Ar ) Page 5 Continuum and HI 21cm Absorption toward NGC 2623 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 4 Feb 2003 Day 35 --- 04 47 00 NGC2623 09 15 46 78.7 312.3 0.6 128.8 -12 1 3 8800 04 47 00 04 50 00 --- 09 18 47 78.1 310.3 0.7 126.5 168 F 1 10000 04 50 00 J0837+24 09 18 47 78.5 306.4 0.7 122.6 -11 1 3 10000 04 50 00 04 51 40 --- 09 20 27 78.1 305.4 0.7 121.4 89 F 1 10667 04 51 40 NGC2623 09 20 27 77.8 309.2 0.7 125.3 -11 1 3 10667 04 51 40 04 54 40 --- 09 23 28 77.2 307.5 0.7 123.2 169 F 1 11867 04 54 40 J0837+24 09 23 28 77.6 303.7 0.8 119.5 -11 1 3 11867 04 54 40 04 56 20 --- 09 25 08 77.2 302.9 0.8 118.5 89 F 1 12533 04 56 20 NGC2623 09 25 08 76.9 306.5 0.8 122.2 -11 1 3 12533 04 56 20 04 59 20 --- 09 28 08 76.4 305.0 0.8 120.3 169 F 1 13733 04 59 20 J0837+24 09 28 08 76.6 301.5 0.8 116.8 -10 1 3 13733 04 59 20 05 01 00 --- 09 29 49 76.3 300.8 0.9 116.0 90 F 1 14400 05 01 00 NGC2623 09 29 49 76.0 304.2 0.9 119.4 -10 1 3 14400 05 01 00 05 04 00 --- 09 32 49 75.4 302.9 0.9 117.8 170 F 1 15600 05 04 00 J0837+24 09 32 49 75.7 299.6 0.9 114.5 -10 1 3 15600 05 04 00 05 05 40 --- 09 34 29 75.3 299.0 0.9 113.7 90 F 1 16267 05 05 40 NGC2623 09 34 29 75.1 302.2 0.9 117.0 -10 1 3 16267 05 05 40 05 08 40 --- 09 37 30 74.5 301.1 1.0 115.5 170 F 1 17467 05 09 20 J0837+24 09 38 10 74.5 297.7 1.0 112.1 30 1 4 17467 05 09 20 05 11 00 --- 09 39 50 74.2 297.2 1.0 111.4 100 R 1 16800 05 11 00 NGC2623 09 39 50 74.0 300.3 1.0 114.5 -9 1 4 16800 05 11 00 05 14 00 --- 09 42 51 73.4 299.3 1.1 113.2 171 R 1 15600 05 14 00 J0837+24 09 42 51 73.6 296.3 1.1 110.3 -9 1 4 15600 05 14 00 05 15 40 --- 09 44 31 73.2 295.9 1.1 109.7 91 R 1 14933 05 15 40 NGC2623 09 44 31 73.0 298.8 1.1 112.6 -9 1 4 14933 05 15 40 05 18 40 --- 09 47 32 72.4 297.9 1.1 111.4 171 R 1 13733 05 18 40 J0837+24 09 47 32 72.6 295.1 1.2 108.6 -9 1 4 13733 05 18 40 05 20 20 --- 09 49 12 72.2 294.7 1.2 108.1 91 R 1 13067 05 20 20 NGC2623 09 49 12 72.1 297.5 1.2 110.8 -9 1 4 13067 05 20 20 05 23 20 --- 09 52 12 71.4 296.7 1.2 109.8 171 R 1 11867 Schedule for ARECIBO (Code Ar ) Page 6 Continuum and HI 21cm Absorption toward NGC 2623 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 4 Feb 2003 Day 35 --- 05 23 20 J0837+24 09 52 12 71.5 294.0 1.2 107.1 -8 1 4 11867 05 23 20 05 25 00 --- 09 53 53 71.2 293.7 1.3 106.6 92 R 1 11200 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bm176.set Matches group arlbw6 in /home/filehost/cwalker/sched/catalogs/freq.dat RX=LBW, with lfbf=6, TG 07-Oct-01 Setup group: 3 Station: ARECIBO Total bit rate: 128 Format: MKIV1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 135.000 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 2165.00 2165.00 2165.00 2165.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= L L L L 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= 1390.59 1390.59 1398.44 1398.44 BBC fr= 774.41 774.41 766.56 766.56 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_off SOURCE LIST -- Continuum and HI 21cm Absorption toward NGC 2623 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) * NGC2623 * 08 35 25.270000 08 38 24.078623 08 38 35.697596 * 25 55 50.18000 25 45 16.52256 25 44 38.72297 From catalog imbedded in main SCHED input file. * J0837+24 08 34 42.314432 * 08 37 40.245674 08 37 51.801772 25 04 54.32847 * 24 54 23.12160 24 53 45.44885 From catalog imbedded in main SCHED input file. * J0830+2 08 27 54.398594 * 08 30 52.086193 08 31 03.613002 24 21 07.66387 * 24 10 59.82046 24 10 23.73427 From catalog imbedded in main SCHED input file. * OJ287 08 51 57.250612 * 08 54 48.874924 08 55 00.016416 20 17 58.41743 * 20 06 30.64088 20 05 48.84795 From catalog imbedded in main SCHED input file. * 3C48 01 34 49.826399 * 01 37 41.299465 01 37 50.344659 32 54 20.26003 * 33 09 35.13422 33 10 33.78732 From catalog imbedded in main SCHED input file. * 3C138 05 18 16.514150 * 05 21 09.886032 05 21 20.507432 16 35 26.83447 * 16 38 22.05193 16 38 34.43836 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) NGC2623 168.1 J0837+24 168.6 J0830+2 168.0 OJ287 174.8 3C48 80.8 3C138 125.4 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