COVER INFORMATION Station: MEDICINA (Code Mc ) Experiment: Nearby young radio sources - Global VLBI observations 2008 Exp. Code: gv019B Schedule Version: 3.00 Processed by SCHED version: 6.05 June 2006 PI: Nathan de Vries Address: Leiden Observatory P. O. Box 9513 NL-2300 RA Leiden The Netherlands Phone: +31 (0)71 527 5874 EMAIL: vriesn@strw.leidenuniv.nl Fax: +31 (0)71 527 5743 Phone during observation: +31 (0)6 1821 2207 Observing mode: 6cm MK5A disk 128-4-2 Notes: THIS IS A GLOBAL VLBI EXPERIMENT IT IS PART B: 6CM Schedule for MEDICINA (Code Mc ) Page 2 Nearby young radio sources - Global VLBI observations 2008 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 13 Mar 2008 Day 73 --- Next scan frequencies: 4987.49 4987.49 4995.49 4995.49 Next BBC frequencies: 387.49 387.49 395.49 395.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 00 30 00 J0739+4954 12 40 39 40.9 304.6 5.0 65.7 0 1 1 0 00 30 00 00 40 00 --- 12 50 41 39.4 305.5 5.2 64.3 600 F 1 10 00 30 04 00 41 12 J0831+4608 12 51 53 45.6 296.1 4.3 67.4 55 1 1 10 00 41 12 00 51 12 --- 13 01 54 44.0 297.1 4.5 66.3 600 F 1 19 00 41 16 00 52 01 J0906+4636 13 02 44 49.6 294.6 3.9 70.6 34 1 1 19 00 52 01 01 02 01 --- 13 12 46 48.0 295.5 4.1 69.5 600 F 1 29 00 52 05 01 03 31 J0739+4954 13 14 16 36.0 307.7 5.6 61.2 62 1 1 29 01 03 31 01 13 31 --- 13 24 18 34.6 308.7 5.7 59.8 600 F 1 39 01 03 35 01 14 39 J0831+4608 13 25 26 40.3 299.4 4.9 63.6 52 1 1 39 01 14 39 01 24 39 --- 13 35 27 38.8 300.4 5.1 62.5 600 F 1 48 01 14 43 01 25 28 J0906+4636 13 36 16 44.3 297.6 4.5 66.8 33 1 1 48 01 25 28 01 35 28 --- 13 46 18 42.7 298.6 4.7 65.6 600 F 1 58 01 25 32 01 36 54 J0739+4954 13 47 44 31.4 311.0 6.1 56.6 59 1 1 58 01 36 54 01 46 54 --- 13 57 46 30.1 312.1 6.3 55.2 600 F 1 68 01 36 58 01 47 59 J0831+4608 13 58 51 35.2 302.9 5.4 59.7 49 1 1 68 01 47 59 01 57 59 --- 14 08 53 33.8 303.9 5.6 58.6 600 F 1 77 01 48 03 01 58 47 J0906+4636 14 09 41 39.1 300.9 5.0 62.9 33 1 1 77 01 58 47 02 08 47 --- 14 19 43 37.5 301.9 5.2 61.7 600 F 1 87 01 58 51 02 10 47 J1026+4542 14 21 43 49.5 293.2 3.9 69.7 91 1 1 87 02 10 47 02 20 47 --- 14 31 45 47.8 294.1 4.1 68.6 600 F 1 97 02 10 51 02 22 45 J0831+4608 14 33 43 30.1 306.7 6.0 55.5 78 1 1 97 02 22 45 02 32 45 --- 14 43 44 28.7 307.9 6.2 54.3 600 F 1 106 02 22 49 02 33 32 J0906+4636 14 44 31 33.8 304.5 5.6 58.7 32 1 1 106 02 33 32 02 43 32 --- 14 54 33 32.4 305.6 5.8 57.5 600 F 1 116 02 33 36 02 45 49 4C39.25 14 56 50 31.0 296.0 5.5 55.5 120 1 1 116 02 45 49 02 55 49 --- 15 06 52 29.4 297.3 5.7 54.6 600 F 1 126 02 45 53 Schedule for MEDICINA (Code Mc ) Page 3 Nearby young radio sources - Global VLBI observations 2008 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 13 Mar 2008 Day 73 --- 02 57 21 J1026+4542 15 08 25 42.0 297.7 4.7 64.6 63 1 1 126 02 57 21 03 07 21 --- 15 18 26 40.4 298.7 4.9 63.5 600 F 1 135 02 57 25 03 10 21 J1209+4115 15 21 27 55.2 281.8 3.2 68.1 146 1 1 135 03 10 21 03 20 21 --- 15 31 29 53.4 283.0 3.4 67.4 600 F 1 145 03 10 25 03 22 12 J1317+4115 15 33 19 65.2 274.3 2.3 70.9 82 1 1 145 03 22 12 03 32 12 --- 15 43 21 63.4 275.7 2.4 70.6 600 F 1 155 03 22 16 03 35 40 J1026+4542 15 46 49 36.0 301.7 5.3 60.2 149 1 1 155 03 35 40 03 45 40 --- 15 56 51 34.5 302.8 5.5 59.1 600 F 1 165 03 35 44 03 47 34 J1209+4115 15 58 46 48.7 286.3 3.8 65.5 82 1 1 165 03 47 34 03 57 34 --- 16 08 48 47.0 287.5 4.0 64.7 600 F 1 174 03 47 38 03 59 03 J1317+4115 16 10 16 58.6 279.3 2.9 69.3 61 1 1 174 03 59 03 04 09 03 --- 16 20 18 56.9 280.6 3.0 68.7 600 F 1 184 03 59 07 04 12 01 J1026+4542 16 23 17 30.6 305.7 5.9 55.9 121 1 1 184 04 12 01 04 22 01 --- 16 33 18 29.2 306.9 6.1 54.7 600 F 1 194 04 12 05 04 23 49 J1209+4115 16 35 07 42.6 290.6 4.4 62.6 77 1 1 194 04 23 49 04 33 49 --- 16 45 08 40.9 291.8 4.6 61.7 600 F 1 203 04 23 53 04 35 10 J1317+4115 16 46 29 52.3 283.8 3.5 67.0 53 1 1 203 04 35 10 04 45 10 --- 16 56 31 50.6 285.0 3.6 66.3 600 F 1 213 04 35 14 04 49 10 J1718+5441 17 00 32 79.4 374.7 -0.3 -161.7 116 1 1 213 04 49 10 04 58 10 --- 17 09 33 79.7 367.7 -0.2 -170.4 540 F 1 222 04 49 14 04 58 50 J1718+5441 17 10 13 79.7 367.2 -0.1 -171.1 35 1 1 222 04 58 50 05 08 50 --- 17 20 15 79.8 359.0 0.0 178.8 600 F 1 231 04 58 54 05 11 03 J1657+5705 17 22 29 76.9 344.9 0.4 160.1 111 1 1 231 05 11 03 05 21 03 =1656+571 17 32 30 76.3 339.6 0.6 152.7 600 F 1 241 05 11 07 05 23 49 J1718+5441 17 35 16 79.5 347.0 0.3 164.0 152 1 1 241 05 23 49 05 33 49 --- 17 45 18 79.0 339.8 0.4 154.8 600 F 1 251 05 23 53 05 34 29 J1718+5441 17 45 58 79.0 339.3 0.4 154.2 36 1 1 251 05 34 29 05 44 29 --- 17 56 00 78.2 333.0 0.6 145.9 600 F 1 260 05 34 33 05 53 38 J1209+4115 18 05 11 28.2 301.4 5.9 54.0 445 1 1 260 05 53 38 06 03 38 --- 18 15 12 26.7 302.7 6.1 52.9 600 F 1 270 05 53 42 Schedule for MEDICINA (Code Mc ) Page 4 Nearby young radio sources - Global VLBI observations 2008 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 13 Mar 2008 Day 73 --- 06 05 27 J1317+4115 18 17 02 37.1 294.5 5.0 59.6 84 1 1 270 06 05 27 06 15 27 --- 18 27 03 35.5 295.7 5.1 58.6 600 F 1 280 06 05 31 06 19 46 J1718+5441 18 31 23 74.6 317.6 1.2 123.7 176 1 1 280 06 19 46 06 29 46 --- 18 41 25 73.3 314.9 1.4 119.1 600 F 1 289 06 19 50 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /disks/cosmos42/vriesn/Proposals/EVN/sched/setups/v6cm-128-4-2.set Matches group mc6cm in /disks/cosmos42/vriesn/Proposals/EVN/sched/catalogs/freq.dat Values confirmed by E-mail A.Orfei (JFD 2Oct98) Setup group: 12 Station: MEDICINA Total bit rate: 128 Format: MKIV1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Speedup factor: 2.00 Disk used to record data. 1st LO= 4600.00 4600.00 4600.00 4600.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 2 1 4 3 BBC SB= U U U U IF = 2N 1N 2N 1N The following frequency sets based on this setup were used. Frequency Set: 12 Setup file default. No pcal detection. LO sum= 4987.49 4987.49 4995.49 4995.49 BBC fr= 387.49 387.49 395.49 395.49 Bandwd= 8.000 8.000 8.000 8.000 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_off SOURCE LIST -- Nearby young radio sources - Global VLBI observations 2008 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) * J0739+4954 07 35 48.704915 * 07 39 34.849000 07 40 14.065821 0.00 50 01 33.08197 * 49 54 38.79000 49 53 41.98185 0.00 From catalog imbedded in main SCHED input file. 0.500 scan hours, 60.000 baseline hours above horizon. * J0831+4608 08 28 10.743375 * 08 31 39.800000 08 32 16.448960 0.00 46 18 10.41813 * 46 08 00.76000 46 06 27.40128 0.00 From catalog imbedded in main SCHED input file. 0.667 scan hours, 80.000 baseline hours above horizon. * J0906+4636 09 02 52.667524 * 09 06 15.537000 09 06 51.389987 0.00 46 48 21.46658 * 46 36 19.03000 46 34 24.61078 0.00 From catalog imbedded in main SCHED input file. 0.667 scan hours, 80.000 baseline hours above horizon. * J1026+4542 10 23 16.767967 * 10 26 18.275000 10 26 50.874150 0.00 45 57 46.12524 * 45 42 29.45000 45 39 56.07323 0.00 From catalog imbedded in main SCHED input file. 0.667 scan hours, 77.500 baseline hours above horizon. * J1209+4115 12 06 31.038674 * 12 09 02.799000 12 09 30.312892 0.00 41 32 40.71843 * 41 15 59.41000 41 13 02.60231 0.00 From catalog imbedded in main SCHED input file. 0.667 scan hours, 77.863 baseline hours above horizon. * J1317+4115 13 15 24.726986 * 13 17 39.195000 13 18 03.636950 0.00 41 31 32.14728 * 41 15 45.62000 41 12 52.39979 0.00 From catalog imbedded in main SCHED input file. 0.667 scan hours, 80.000 baseline hours above horizon. * J1718+5441 17 17 53.477645 * 17 18 54.397000 17 19 04.807349 0.00 54 44 48.99945 * 54 41 48.21000 54 40 50.15516 0.00 From catalog imbedded in main SCHED input file. 0.817 scan hours, 93.269 baseline hours above horizon. * 4C39.25 09 23 55.319481 * 09 27 03.014200 09 27 36.178057 0.00 39 15 23.56461 * 39 02 20.85000 39 00 13.24576 0.00 From catalog imbedded in main SCHED input file. 0.167 scan hours, 20.000 baseline hours above horizon. * J1657+5705 16 56 26.424033 * 16 57 20.708916 16 57 30.325409 1.03 1656+571 57 10 25.82930 * 57 05 53.50362 57 04 40.15220 0.77 J1657+57 /disks/cosmos42/vriesn/Proposals/EVN/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.167 scan hours, 19.999 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) J0739+4954 112.0 J0831+4608 121.4 J0906+4636 125.8 J1026+4542 134.7 J1209+4115 140.8 J1317+4115 135.0 J1718+5441 94.5 4C39.25 133.8 J1657+5705 97.3 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