COVER INFORMATION Station: VLBA_OV (Code Ov ) Experiment: Water megamaser in an FRII galaxy, 3C 403 Exp. Code: BT075B Schedule Version: 1.00 Processed by SCHED version: NRAO internal release of 4 October 2004 PI: Andrea Tarchi Address: Osservatorio Astronomico di Cagliari Loc. Poggio dei Pini, Strada 54 09012, Capoterra (CA), Italy Phone: +39 070 71180258 EMAIL: atarchi@ira.cnr.it Fax: +39 070 71180222 Phone during observation: +39 070 71180258 Observing mode: VLBA 256-8-2 1.3cm Notes: Schedule for VLBA_OV (Code Ov ) Page 2 Water megamaser in an FRII galaxy, 3C 403 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 28 Feb 2005 Day 59 --- Next scan frequencies: 22217.49 22217.49 22225.49 22225.49 22233.49 22233.49 22241.49 22241.49 Next BBC frequencies: 717.49 717.49 725.49 725.49 733.49 733.49 741.49 741.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 15 38 15 J1951+0134 18 19 22 48.5 143.7 -1.5 -28.1 0 1 1 0 15 38 15 15 39 15 --- 18 20 22 48.6 144.0 -1.5 -27.9 60 F 1 798 15 39 15 3C403 18 20 22 49.3 143.1 -1.5 -28.6 -7 1 1 798 15 39 15 15 40 00 --- 18 21 07 49.4 143.4 -1.5 -28.4 37 F 1 1396 15 40 00 J1951+0134 18 21 07 48.7 144.3 -1.5 -27.7 -7 1 1 1396 15 40 00 15 40 45 --- 18 21 52 48.8 144.5 -1.5 -27.5 37 F 1 1995 15 40 45 3C403 18 21 52 49.5 143.6 -1.5 -28.2 -7 1 1 1995 15 40 45 15 41 30 --- 18 22 37 49.6 143.9 -1.5 -28.0 37 F 1 2593 15 41 30 J1951+0134 18 22 37 48.9 144.8 -1.5 -27.3 -7 1 1 2593 15 41 30 15 42 15 --- 18 23 22 48.9 145.0 -1.5 -27.2 37 F 1 3191 15 42 15 3C403 18 23 22 49.7 144.2 -1.5 -27.8 -7 1 1 3191 15 42 15 15 43 00 --- 18 24 07 49.8 144.4 -1.5 -27.6 37 F 1 3790 15 43 00 J1951+0134 18 24 07 49.0 145.3 -1.5 -27.0 -7 1 1 3790 15 43 00 15 43 44 --- 18 24 52 49.1 145.5 -1.4 -26.8 37 F 1 4388 15 43 44 3C403 18 24 52 49.9 144.7 -1.5 -27.4 -7 1 1 4388 15 43 44 15 44 29 --- 18 25 37 50.0 144.9 -1.4 -27.3 37 F 1 4986 15 44 29 J1951+0134 18 25 37 49.2 145.8 -1.4 -26.6 -7 1 1 4986 15 44 29 15 45 14 --- 18 26 22 49.3 146.1 -1.4 -26.4 37 F 1 5585 15 45 14 3C403 18 26 22 50.0 145.2 -1.4 -27.1 -7 1 1 5585 15 45 14 15 45 59 --- 18 27 07 50.1 145.4 -1.4 -26.9 37 F 1 6183 15 45 59 J1951+0134 18 27 07 49.4 146.3 -1.4 -26.2 -7 1 1 6183 15 45 59 15 46 44 --- 18 27 52 49.4 146.6 -1.4 -26.0 37 F 1 6781 15 46 44 3C403 18 27 52 50.2 145.7 -1.4 -26.7 -7 1 1 6781 15 46 44 15 47 29 --- 18 28 37 50.3 146.0 -1.4 -26.5 37 F 1 7380 Schedule for VLBA_OV (Code Ov ) Page 3 Water megamaser in an FRII galaxy, 3C 403 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 28 Feb 2005 Day 59 --- 15 47 29 J1951+0134 18 28 37 49.5 146.8 -1.4 -25.8 -7 1 1 7380 15 47 29 15 48 14 --- 18 29 22 49.6 147.1 -1.4 -25.6 37 F 1 7978 15 48 14 3C403 18 29 22 50.4 146.2 -1.4 -26.3 -7 1 1 7978 15 48 14 15 48 59 --- 18 30 07 50.5 146.5 -1.4 -26.1 37 F 1 8577 15 48 59 J1951+0134 18 30 07 49.7 147.4 -1.4 -25.4 -7 1 1 8577 15 48 59 15 49 43 --- 18 30 52 49.8 147.6 -1.3 -25.2 37 F 1 9175 15 49 43 3C403 18 30 52 50.5 146.8 -1.4 -25.9 -8 1 1 9175 15 49 43 15 50 28 --- 18 31 37 50.6 147.0 -1.3 -25.7 37 F 1 9773 15 50 28 J1951+0134 18 31 37 49.9 147.9 -1.3 -25.1 -8 1 1 9773 15 50 28 15 51 13 --- 18 32 22 49.9 148.1 -1.3 -24.9 37 F 1 10372 15 51 13 3C403 18 32 22 50.7 147.3 -1.3 -25.5 -8 1 1 10372 15 51 13 15 51 58 --- 18 33 07 50.8 147.6 -1.3 -25.3 37 F 1 10970 15 51 58 J1951+0134 18 33 07 50.0 148.4 -1.3 -24.7 -8 1 1 10970 15 51 58 15 52 43 --- 18 33 52 50.1 148.7 -1.3 -24.5 37 F 1 11568 15 52 43 3C403 18 33 52 50.9 147.8 -1.3 -25.1 -8 1 1 11568 15 52 43 15 53 28 --- 18 34 37 50.9 148.1 -1.3 -24.9 37 F 1 12167 15 53 28 J1951+0134 18 34 37 50.2 148.9 -1.3 -24.3 -8 1 1 12167 15 53 28 15 54 13 --- 18 35 22 50.2 149.2 -1.3 -24.1 37 F 1 12765 15 54 13 3C403 18 35 22 51.0 148.4 -1.3 -24.7 -8 1 1 12765 15 54 13 15 54 58 --- 18 36 07 51.1 148.6 -1.3 -24.5 37 F 1 13363 15 54 58 J1951+0134 18 36 07 50.3 149.5 -1.3 -23.9 -8 1 1 13363 15 54 58 15 55 42 --- 18 36 52 50.4 149.7 -1.2 -23.7 37 F 1 13962 15 55 42 3C403 18 36 52 51.2 148.9 -1.3 -24.3 -8 1 1 13962 15 55 42 15 56 27 --- 18 37 37 51.3 149.2 -1.2 -24.1 37 F 1 14560 15 56 27 J1951+0134 18 37 37 50.5 150.0 -1.2 -23.5 -8 1 1 14560 15 56 27 15 57 12 --- 18 38 22 50.5 150.3 -1.2 -23.3 37 F 1 15158 16 17 09 1921-293 18 58 22 23.2 173.6 -0.4 -5.8 1136 1 1 15158 16 17 09 16 19 39 --- 19 00 52 23.3 174.2 -0.4 -5.3 150 F 1 17153 Schedule for VLBA_OV (Code Ov ) Page 4 Water megamaser in an FRII galaxy, 3C 403 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 28 Feb 2005 Day 59 --- 16 20 38 J1951+0134 19 01 52 52.5 159.2 -0.8 -16.5 -5 1 2 17153 16 20 38 16 36 36 --- 19 17 52 53.5 165.6 -0.6 -11.4 953 R 1 4388 16 56 32 J1951+0134 19 37 52 54.2 174.0 -0.2 -4.8 1185 1 2 4388 16 56 32 16 58 32 --- 19 39 52 54.2 174.9 -0.2 -4.1 120 R 1 2792 16 58 32 3C403 19 39 52 55.2 174.5 -0.2 -4.4 -8 1 2 2792 16 58 32 16 59 32 --- 19 40 52 55.2 174.9 -0.2 -4.1 52 R 1 1995 16 59 32 J1951+0134 19 40 52 54.3 175.3 -0.2 -3.7 -8 1 2 1995 16 59 32 17 01 32 --- 19 42 52 54.3 176.2 -0.1 -3.1 112 R 1 399 17 01 32 3C403 19 42 52 55.2 175.8 -0.2 -3.4 -8 1 3 399 17 01 32 17 02 31 --- 19 43 52 55.2 176.2 -0.1 -3.0 52 F 1 1197 17 02 31 J1951+0134 19 43 52 54.3 176.6 -0.1 -2.7 -8 1 3 1197 17 02 31 17 04 31 --- 19 45 52 54.3 177.4 -0.1 -2.0 112 F 1 2792 17 04 31 3C403 19 45 52 55.3 177.1 -0.1 -2.3 -8 1 3 2792 17 04 31 17 05 31 --- 19 46 52 55.3 177.5 -0.1 -2.0 52 F 1 3590 17 05 31 J1951+0134 19 46 52 54.3 177.9 -0.1 -1.7 -8 1 3 3590 17 05 31 17 07 31 --- 19 48 52 54.3 178.7 0.0 -1.0 112 F 1 5186 17 07 31 3C403 19 48 52 55.3 178.4 -0.1 -1.3 -8 1 3 5186 17 07 31 17 08 31 --- 19 49 52 55.3 178.8 0.0 -0.9 52 F 1 5984 17 08 31 J1951+0134 19 49 52 54.4 179.2 0.0 -0.7 -8 1 3 5984 17 08 31 17 10 30 --- 19 51 52 54.4 180.0 0.0 0.0 112 F 1 7579 17 10 30 3C403 19 51 52 55.3 179.7 0.0 -0.2 -8 1 3 7579 17 10 30 17 11 30 --- 19 52 52 55.3 180.2 0.0 0.1 52 F 1 8377 17 11 30 J1951+0134 19 52 52 54.4 180.4 0.0 0.4 -8 1 3 8377 17 11 30 17 13 30 --- 19 54 52 54.3 181.3 0.1 1.0 112 F 1 9973 17 13 30 3C403 19 54 52 55.3 181.0 0.0 0.8 -8 1 3 9973 17 13 30 17 14 30 --- 19 55 52 55.3 181.5 0.1 1.2 52 F 1 10771 17 14 30 J1951+0134 19 55 52 54.3 181.7 0.1 1.4 -8 1 3 10771 17 14 30 17 16 29 --- 19 57 52 54.3 182.6 0.1 2.1 112 F 1 12366 Schedule for VLBA_OV (Code Ov ) Page 5 Water megamaser in an FRII galaxy, 3C 403 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 28 Feb 2005 Day 59 --- 17 34 26 3C454.3 20 15 52 49.3 110.3 -2.6 -51.0 1023 1 3 12366 17 34 26 17 36 56 --- 20 18 22 49.7 110.9 -2.6 -50.8 150 F 1 14361 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/filehost/cwalker/sched/setups/v1cm-256-8-2.set Matches group v1cm_b3 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 256 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 266.660 ips, High density - 160.00 ips Time per pass for 17600 ft, High density tapes is: 00:22:00 1st LO= 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 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 1cm omit 1cm VLBA Synth= 9.1 15.4 12.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 22217.49 22217.49 22225.49 22225.49 22233.49 22233.49 22241.49 22241.49 BBC fr= 717.49 717.49 725.49 725.49 733.49 733.49 741.49 741.49 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S5 S7 S1 S3 S5 S7 PCALXB2= S2 S4 S6 S8 S2 S4 S6 S8 PCALFR1= 510 510 510 510 6510 6510 6510 6510 PCALFR2= 510 510 510 510 6510 6510 6510 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_auto SOURCE LIST -- Water megamaser in an FRII galaxy, 3C 403 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) (B1950) (J2000) (Date) * J1951+0134 19 49 03.796468 * 19 51 36.018462 19 51 50.334276 01 26 58.66819 * 01 34 42.71409 01 35 14.18643 From catalog imbedded in main SCHED input file. calibrator test source from VCS3 ~ 200 mJy 0.665 scan hours, 28.078 baseline hours above horizon. * 3C403 19 49 44.535299 * 19 52 15.801000 19 52 30.013402 02 22 37.82708 * 02 30 24.47000 02 30 56.01966 From catalog imbedded in main SCHED input file. Target Source 0.249 scan hours, 9.474 baseline hours above horizon. J1924-2914 19 21 42.234131 * 19 24 51.055958 19 25 09.143300 * 1921-293 -29 20 26.35405 *-29 14 30.12115 -29 14 01.66731 J1924-29 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report 0.042 scan hours, 1.870 baseline hours above horizon. J2253+1608 22 51 29.519733 * 22 53 57.747932 22 54 11.181123 2251+158 15 52 54.34806 * 16 08 53.56089 16 10 20.97533 * 3C454.3 /home/filehost/cwalker/sched/catalogs/sources.vlba J2253+16 ICRF - Ext.1 Source - 1998 IERS Annual Report 0.042 scan hours, 1.870 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) J1951+0134 44.6 3C403 44.7 1921-293 51.9 3C454.3 24.0 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