COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: Parsec scale structure in ISM and the nature of 21-cm absorbers Exp. Code: GG074 Schedule Version: 1.00 Processed by SCHED version: 9.40 Release Jan. 13, 2011. PI: Neeraj Gupta Address: ASTRON Postbus 2 7990 AA Dwingeloo The Netherlands Phone: +31-521-595782 EMAIL: gupta@astron.nl Fax: Phone during observation: +31-521-595782 Observing mode: Notes: Concerning this schedule you can also contact Yurii Pidopryhora, pidopryhora@jive.nl, +31-521-596548 COVER LETTER: Block schedule quote: GG074 Eb Wb Jb1 On25 Mc Tr -- EVN Eu 159 1700(08/06)-0300(09/06) 21cm (1396.5 MHz) US 159 1700(08/06)-0500(09/06) VLBA Target: J1243+4043 Delay calibrator: J1242+3751 Bandpass claibrators/fringe-finders: 4C39.25, 3C345 WSRT calibrator: 3C286 In this experiment we observe an HI absorber (with z~0.0169) in front of a ~196 mJy quasar. The peak absorption is at ~1396.47 MHz, which is centered at one of the observation subbands (with 0 frequency offset). !!! PCAL is OFF for this experiment !!! Schedule for JODRELL1 (Code Jb ) Page 2 Parsec scale structure in ISM and the nature of 21-cm absorbers UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Wed 8 Jun 2011 Day 159 --- Next scan frequencies: 1390.83 1390.83 1394.77 1394.77 1398.70 1398.70 1402.63 1402.63 Next BBC frequencies: 160.83 160.83 164.77 164.77 168.70 168.70 172.63 172.63 Next scan bandwidths: 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 17 00 00 J1243+4043 09 57 41 59.4 97.2 -2.8 -51.5 0 0 16 59 55 17 11 30 --- 10 09 13 61.1 99.9 -2.6 -51.0 690 11 16 59 59 17 12 00 J1243+4043 10 09 43 61.2 100.1 -2.6 -51.0 22 11 17 11 55 17 23 30 --- 10 21 15 62.9 103.0 -2.4 -50.2 690 22 17 11 59 17 24 30 J1242+3751 10 22 15 61.3 108.2 -2.4 -46.0 24 22 17 24 25 17 26 30 =1240+381 10 24 15 61.6 108.8 -2.3 -45.8 120 24 17 24 29 17 34 30 J1243+4043 10 32 17 64.5 106.1 -2.2 -49.3 445 24 17 34 25 17 46 20 --- 10 44 09 66.2 109.6 -2.0 -48.0 710 36 17 34 29 17 46 50 J1243+4043 10 44 39 66.3 109.8 -2.0 -47.9 22 36 17 46 45 17 58 40 --- 10 56 31 67.9 113.7 -1.8 -46.3 710 47 17 46 49 17 59 40 J1242+3751 10 57 31 66.1 119.6 -1.8 -41.2 22 47 17 59 35 18 01 40 =1240+381 10 59 31 66.4 120.3 -1.7 -40.8 120 50 17 59 39 18 02 40 J1243+4043 11 00 31 68.5 115.2 -1.7 -45.6 23 50 18 02 35 18 14 10 --- 11 12 03 70.0 119.5 -1.5 -43.4 690 61 18 02 39 18 14 40 J1243+4043 11 12 33 70.1 119.8 -1.5 -43.2 22 61 18 14 35 18 26 10 --- 11 24 05 71.5 124.7 -1.3 -40.4 690 72 18 14 39 18 27 10 J1242+3751 11 25 05 69.5 130.9 -1.3 -34.9 20 72 18 27 05 18 29 10 =1240+381 11 27 06 69.7 131.9 -1.3 -34.3 120 74 18 27 09 18 30 10 J1243+4043 11 28 06 72.0 126.6 -1.3 -39.3 22 74 18 30 05 18 41 40 --- 11 39 38 73.3 132.4 -1.1 -35.6 690 85 18 30 09 18 42 10 J1243+4043 11 40 08 73.4 132.7 -1.1 -35.5 21 85 18 42 05 18 53 40 --- 11 51 40 74.6 139.3 -0.9 -31.0 690 96 18 42 09 18 54 40 J1242+3751 11 52 40 72.2 145.3 -0.8 -25.5 21 96 18 54 35 18 56 40 =1240+381 11 54 40 72.4 146.5 -0.8 -24.7 120 98 18 54 39 Schedule for JODRELL1 (Code Jb ) Page 3 Parsec scale structure in ISM and the nature of 21-cm absorbers UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Wed 8 Jun 2011 Day 159 --- 19 04 50 4C39.25 12 02 51 60.1 257.4 2.6 48.7 31 98 19 04 45 19 09 50 --- 12 07 52 59.3 258.7 2.7 49.0 300 103 19 04 49 19 17 20 J1243+4043 12 15 24 76.5 155.7 -0.5 -19.0 21 103 19 17 15 19 28 50 --- 12 26 55 77.1 164.9 -0.3 -11.8 690 115 19 17 19 19 29 20 J1243+4043 12 27 26 77.1 165.3 -0.3 -11.5 20 115 19 29 15 19 40 50 --- 12 38 57 77.4 175.2 -0.1 -3.8 690 126 19 29 19 19 41 50 J1242+3751 12 39 58 74.5 177.4 -0.1 -1.9 27 126 19 41 45 19 43 50 =1240+381 12 41 58 74.5 178.9 0.0 -0.8 120 128 19 41 49 19 44 50 J1243+4043 12 42 58 77.4 178.7 0.0 -1.1 27 128 19 44 45 19 56 20 --- 12 54 30 77.3 188.7 0.2 6.8 690 139 19 44 49 19 56 50 J1243+4043 12 55 00 77.3 189.1 0.2 7.2 20 139 19 56 45 20 08 20 --- 13 06 32 76.9 198.7 0.4 14.7 690 150 19 56 49 20 09 20 J1242+3751 13 07 32 74.0 197.5 0.4 13.2 27 150 20 09 15 20 11 20 =1240+381 13 09 32 73.9 198.9 0.4 14.2 120 152 20 09 19 20 12 20 J1243+4043 13 10 33 76.7 201.9 0.4 17.1 27 152 20 12 15 20 23 50 --- 13 22 04 75.9 210.6 0.6 23.7 690 163 20 12 19 20 24 20 J1243+4043 13 22 35 75.9 210.9 0.6 23.9 20 163 20 24 15 20 35 50 --- 13 34 06 74.9 218.7 0.8 29.6 690 175 20 24 19 20 36 50 J1242+3751 13 35 07 72.2 215.2 0.9 25.9 28 175 20 36 45 20 38 50 =1240+381 13 37 07 72.0 216.4 0.9 26.7 120 177 20 36 49 20 39 50 J1243+4043 13 38 07 74.5 221.2 0.9 31.3 26 177 20 39 45 20 51 20 --- 13 49 39 73.3 227.8 1.1 35.7 690 188 20 39 49 20 51 50 J1243+4043 13 50 09 73.2 228.0 1.1 35.9 21 188 20 51 45 21 03 20 --- 14 01 41 71.9 233.8 1.3 39.6 690 199 20 51 49 21 04 20 J1242+3751 14 02 41 69.4 229.5 1.3 35.2 26 199 21 04 15 21 06 20 =1240+381 14 04 41 69.1 230.4 1.4 35.7 120 201 21 04 19 21 07 20 J1243+4043 14 05 42 71.4 235.7 1.4 40.7 24 201 21 07 15 21 18 50 --- 14 17 14 70.0 240.6 1.5 43.4 690 212 21 07 19 21 19 20 J1243+4043 14 17 44 69.9 240.8 1.6 43.5 22 212 21 19 15 21 30 50 --- 14 29 15 68.3 245.1 1.7 45.7 690 223 21 19 19 Schedule for JODRELL1 (Code Jb ) Page 4 Parsec scale structure in ISM and the nature of 21-cm absorbers UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Wed 8 Jun 2011 Day 159 --- 21 31 50 J1242+3751 14 30 16 66.0 240.8 1.8 41.4 26 223 21 31 45 21 33 50 =1240+381 14 32 16 65.7 241.5 1.8 41.7 120 225 21 31 49 21 38 00 4C39.25 14 36 27 37.4 287.5 5.1 47.3 26 225 21 37 55 21 43 00 --- 14 41 27 36.7 288.3 5.2 47.0 300 230 21 37 59 21 47 10 J1243+4043 14 45 38 66.1 250.6 2.0 48.1 17 230 21 47 05 21 58 40 --- 14 57 10 64.4 254.1 2.2 49.4 690 242 21 47 09 21 59 10 J1243+4043 14 57 40 64.4 254.2 2.2 49.4 22 242 21 59 05 22 10 40 --- 15 09 12 62.7 257.4 2.4 50.4 690 253 21 59 09 22 11 40 J1242+3751 15 10 12 60.5 253.4 2.4 46.5 28 253 22 11 35 22 13 40 =1240+381 15 12 13 60.2 253.9 2.5 46.7 120 255 22 11 39 22 14 40 J1243+4043 15 13 13 62.1 258.4 2.5 50.6 27 255 22 14 35 22 26 10 --- 15 24 45 60.4 261.3 2.7 51.3 690 266 22 14 39 22 26 40 J1243+4043 15 25 15 60.3 261.4 2.7 51.3 22 266 22 26 35 22 38 10 --- 15 36 47 58.6 264.1 2.9 51.7 690 277 22 26 39 22 39 10 J1242+3751 15 37 47 56.5 260.4 2.9 48.3 29 277 22 39 05 22 41 10 =1240+381 15 39 47 56.2 260.9 2.9 48.4 120 279 22 39 09 22 42 10 J1243+4043 15 40 47 58.0 265.0 2.9 51.8 29 279 22 42 05 22 53 40 --- 15 52 19 56.3 267.5 3.1 52.0 690 290 22 42 09 22 54 10 J1243+4043 15 52 49 56.2 267.6 3.1 52.0 23 290 22 54 05 23 05 40 --- 16 04 21 54.5 269.9 3.3 52.1 690 302 22 54 09 23 06 40 J1242+3751 16 05 21 52.4 266.6 3.4 49.1 31 302 23 06 35 23 08 40 =1240+381 16 07 22 52.1 267.0 3.4 49.1 120 304 23 06 39 23 09 40 J1243+4043 16 08 22 53.9 270.7 3.4 52.1 30 304 23 09 35 23 21 10 --- 16 19 54 52.2 273.0 3.6 52.0 690 315 23 09 39 23 21 40 J1243+4043 16 20 24 52.1 273.1 3.6 52.0 23 315 23 21 35 23 33 10 --- 16 31 56 50.4 275.2 3.8 51.8 690 326 23 21 39 23 34 10 J1242+3751 16 32 56 48.2 272.2 3.8 49.2 32 326 23 34 05 23 36 10 =1240+381 16 34 56 47.9 272.6 3.9 49.2 120 328 23 34 09 23 37 10 J1243+4043 16 35 56 49.8 275.9 3.9 51.7 31 328 23 37 05 23 48 40 --- 16 47 28 48.1 278.0 4.0 51.4 690 339 23 37 09 Schedule for JODRELL1 (Code Jb ) Page 5 Parsec scale structure in ISM and the nature of 21-cm absorbers UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Start: Wed 8 Jun 2011 Day 159 -- Stop: Thu 9 Jun 2011 Day 160 --- 23 49 10 J1243+4043 16 47 58 48.0 278.1 4.1 51.4 23 339 23 49 05 00 00 40 --- 16 59 30 46.3 280.1 4.3 51.0 690 351 23 49 09 00 01 40 J1242+3751 17 00 30 44.1 277.4 4.3 48.7 33 351 00 01 35 00 03 40 =1240+381 17 02 31 43.8 277.7 4.3 48.6 120 353 00 01 39 00 04 40 J1243+4043 17 03 31 45.7 280.8 4.3 50.8 32 353 00 04 35 00 16 10 --- 17 15 03 44.0 282.8 4.5 50.3 690 364 00 04 39 00 16 40 J1243+4043 17 15 33 43.9 282.8 4.5 50.3 23 364 00 16 35 00 28 10 --- 17 27 05 42.3 284.8 4.7 49.7 690 375 00 16 39 00 29 10 J1242+3751 17 28 05 40.1 282.2 4.7 47.7 32 375 00 29 05 00 31 10 =1240+381 17 30 05 39.8 282.6 4.8 47.7 120 377 00 29 09 00 36 10 3C345 17 35 06 73.9 218.4 0.9 28.9 26 377 00 36 05 00 41 10 --- 17 40 07 73.5 221.4 0.9 31.0 300 382 00 36 09 00 46 10 J1243+4043 17 45 08 39.7 287.7 5.0 48.7 19 382 00 46 05 00 57 40 --- 17 56 39 38.0 289.6 5.2 48.0 690 393 00 46 09 00 58 10 J1243+4043 17 57 10 38.0 289.7 5.2 48.0 23 393 00 58 05 01 09 40 --- 18 08 41 36.4 291.5 5.4 47.2 690 404 00 58 09 01 10 40 J1242+3751 18 09 42 34.1 289.3 5.4 45.6 32 404 01 10 35 01 12 40 =1240+381 18 11 42 33.8 289.6 5.5 45.5 120 406 01 10 39 01 13 40 J1243+4043 18 12 42 35.8 292.2 5.5 47.0 32 406 01 13 35 01 25 10 --- 18 24 14 34.2 294.0 5.7 46.1 690 418 01 13 39 01 25 40 J1243+4043 18 24 44 34.1 294.1 5.7 46.1 23 418 01 25 35 01 37 10 --- 18 36 16 32.6 295.9 5.9 45.2 690 429 01 25 39 01 38 10 J1242+3751 18 37 16 30.2 293.9 5.9 43.8 31 429 01 38 05 01 40 10 =1240+381 18 39 16 30.0 294.2 5.9 43.7 120 431 01 38 09 01 46 10 J1243+4043 18 45 17 31.4 297.3 6.0 44.5 332 431 01 46 05 01 55 10 --- 18 54 19 30.2 298.8 6.2 43.8 540 440 01 46 09 01 55 40 J1243+4043 18 54 49 30.1 298.9 6.2 43.7 23 440 01 55 35 02 04 50 --- 19 04 00 28.9 300.3 6.3 42.9 550 449 01 55 39 02 05 50 J1242+3751 19 05 01 26.5 298.4 6.4 41.8 31 449 02 05 45 02 07 50 =1240+381 19 07 01 26.3 298.8 6.4 41.6 120 451 02 05 49 Schedule for JODRELL1 (Code Jb ) Page 6 Parsec scale structure in ISM and the nature of 21-cm absorbers UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Thu 9 Jun 2011 Day 160 --- 02 08 50 J1243+4043 19 08 01 28.4 300.9 6.4 42.6 31 451 02 08 45 02 17 20 --- 19 16 33 27.3 302.3 6.5 41.8 510 459 02 08 49 02 17 50 J1243+4043 19 17 03 27.2 302.4 6.5 41.8 23 459 02 17 45 02 26 20 --- 19 25 34 26.2 303.7 6.7 41.0 510 467 02 17 49 02 27 20 J1242+3751 19 26 34 23.7 302.0 6.7 40.0 30 467 02 27 15 02 29 20 =1240+381 19 28 35 23.5 302.3 6.8 39.8 120 469 02 27 19 02 30 20 J1243+4043 19 29 35 25.7 304.4 6.8 40.6 31 469 02 30 15 02 38 50 --- 19 38 06 24.6 305.7 6.9 39.8 510 477 02 30 19 02 39 20 J1243+4043 19 38 36 24.6 305.8 6.9 39.8 23 477 02 39 15 02 47 50 --- 19 47 08 23.6 307.2 7.0 39.0 510 486 02 39 19 02 48 50 J1242+3751 19 48 08 21.0 305.6 7.1 38.0 30 486 02 48 45 02 50 50 =1240+381 19 50 08 20.8 305.9 7.1 37.8 120 488 02 48 49 02 55 40 3C345 19 54 59 55.2 267.0 3.2 51.1 20 488 02 55 35 03 00 00 --- 19 59 20 54.5 267.9 3.3 51.1 260 492 02 55 39 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: sess211.H128 Matching groups in /aps3/sched9.4/catalogs/freq.dat: j121red Values from SImon Garrington for red HI 21/01/00 Setup group: 3 Station: JODRELL1 Total bit rate: 128 Format: MKIV1:1 Bits per sample: 2 Sample rate: 8.000 Number of channels: 8 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 1230.00 1230.00 1230.00 1230.00 1230.00 1230.00 1230.00 1230.00 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 2 1 4 3 6 5 8 7 BBC SB= U U U U U U U U IF = 2N 1N 2N 1N 2N 1N 2N 1N The following frequency sets based on this setup were used. Frequency Set: 4 Based on FREQ, BW, and/or DOPPLER in schedule. LO sum= 1390.83 1390.83 1394.77 1394.77 1398.70 1398.70 1402.63 1402.63 BBC fr= 160.83 160.83 164.77 164.77 168.70 168.70 172.63 172.63 Bandwd= 4.000 4.000 4.000 4.000 4.000 4.000 4.000 4.000 Track assignments are: track1= 2, 6, 10, 14, 18, 22, 26, 30 barrel=roll_off SOURCES USED IN RECORDING SCANS -- Parsec scale structure in ISM and the nature of 21-cm absorbers 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) * J1243+4043 12 41 32.734570 * 12 43 55.781600 12 44 29.987313 0.00 41 00 22.94680 * 40 43 58.43500 40 40 17.96403 0.00 From catalog imbedded in main SCHED input file. Doppler based on heliocentric frame and optical definition. Velocities: 5051.90 5051.90 5051.90 5051.90 5051.90 5051.90 5051.90 5051.90 8.931 scan and 700.258 baseline hours in setup: sess211.H128 J0927+3902 09 23 55.319213 * 09 27 03.013934 09 27 46.245428 0.29 0923+392 39 15 23.56646 * 39 02 20.85186 38 59 24.55706 0.16 * 4C39.25 /aps3/sched9.4/catalogs/sources.vlba J0927+39 GSFC 2010a astro solution 231732 Observations Doppler based on other sources. 0.167 scan and 18.750 baseline hours in setup: sess211.H128 * J1242+3751 12 40 27.034314 * 12 42 51.369077 12 43 25.855934 0.04 1240+381 38 07 25.41734 * 37 51 00.02525 37 47 18.58321 0.03 J1242+37 /aps3/sched9.4/catalogs/sources.vlba GSFC 2010a astro solution 1290 Observations Doppler based on other sources. 0.800 scan and 62.633 baseline hours in setup: sess211.H128 J1331+3030 13 28 49.657759 * 13 31 08.288051 13 31 41.716249 0.19 * 3C286 30 45 58.64061 * 30 30 32.95925 30 27 03.00073 0.17 1328+307 /aps3/sched9.4/catalogs/sources.vlba J1331+30 GSFC 2010a astro solution 276 Observations Doppler based on other sources. 0.167 scan and 0.833 baseline hours in setup: sess211.H128 J1642+3948 16 41 17.606228 * 16 42 58.809965 16 43 24.330295 0.81 * 3C345 39 54 10.81494 * 39 48 36.99400 39 47 20.92672 0.54 1641+399 /aps3/sched9.4/catalogs/sources.vlba J1642+39 GSFC 2010a astro solution 52595 Observations Doppler based on other sources. 0.236 scan and 18.792 baseline hours in setup: sess211.H128 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) J1243+4043 92.0 4C39.25 57.0 J1242+3751 93.4 3C286 105.8 3C345 117.1 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