COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: The double-peaked emission line quasar SDSS J1425+3231 Exp. Code: EF023B Schedule Version: 1.00 Processed by SCHED version: 10.00 Release Sept. 15, 2011 PI: Sandor Frey Address: FOMI Satellite Geodetic Observatory P.O. Box 585 H-1592 Budapest Hungary Phone: +36 27 374980 EMAIL: frey@sgo.fomi.hu Fax: +36 27 374982 Phone during observation: +36 27 374980 Observing mode: 18 cm phase-referencing 1 Gb/s Notes: Schedule for JODRELL1 (Code Jb ) Page 2 The double-peaked emission line quasar SDSS J1425+3231 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 ---------------------------------------------------------------------------------------- --- Fri 4 Nov 2011 Day 308 --- Next scan frequencies: 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 Next BBC frequencies: 100.49 100.49 100.49 100.49 132.49 132.49 132.49 132.49 164.49 164.49 164.49 164.49 196.49 196.49 196.49 196.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 07 00 00 J1407+2827 09 43 29 36.5 90.1 -4.4 -42.9 0 0 07 00 00 07 09 20 =1404+286 09 52 51 37.9 92.0 -4.2 -42.8 560 72 07 00 04 07 10 17 J1422+3223 09 53 47 38.6 85.7 -4.5 -44.9 15 72 07 10 17 07 11 42 =1420+326 09 55 23 38.8 86.0 -4.5 -45.0 85 83 07 10 21 07 11 42 J1425+3231 09 55 13 38.5 85.3 -4.5 -45.0 -16 83 No stop 07 16 12 --- 09 59 43 39.2 86.2 -4.4 -45.1 254 118 07 11 46 07 17 57 J1425+3231 10 01 29 39.4 86.5 -4.4 -45.1 98 118 07 17 57 07 22 27 --- 10 06 00 40.1 87.4 -4.3 -45.1 270 153 07 18 01 07 22 58 J1422+3223 10 06 31 40.5 88.1 -4.3 -45.1 15 153 07 22 58 07 24 23 =1420+326 10 08 07 40.7 88.5 -4.2 -45.1 85 164 07 23 02 07 24 23 J1425+3231 10 07 56 40.4 87.8 -4.3 -45.1 -16 164 No stop 07 28 53 --- 10 12 27 41.1 88.7 -4.2 -45.2 254 199 07 24 27 07 30 39 J1425+3231 10 14 14 41.3 89.0 -4.2 -45.2 98 199 07 30 39 07 35 09 --- 10 18 44 42.0 89.9 -4.1 -45.2 270 234 07 30 43 07 35 41 J1422+3223 10 19 16 42.4 90.7 -4.1 -45.1 15 234 07 35 41 07 37 06 =1420+326 10 20 51 42.6 91.0 -4.0 -45.1 85 245 07 35 45 07 37 06 J1425+3231 10 20 41 42.3 90.3 -4.1 -45.2 -16 245 No stop 07 41 36 --- 10 25 12 43.0 91.2 -4.0 -45.2 254 279 07 37 10 07 43 22 J1425+3231 10 26 58 43.2 91.6 -4.0 -45.2 98 279 07 43 22 07 47 52 --- 10 31 29 43.9 92.5 -3.9 -45.1 270 314 07 43 26 07 48 23 J1422+3223 10 32 01 44.3 93.3 -3.8 -45.0 15 314 07 48 23 07 49 48 =1420+326 10 33 36 44.5 93.6 -3.8 -45.0 85 325 07 48 27 Schedule for JODRELL1 (Code Jb ) Page 3 The double-peaked emission line quasar SDSS J1425+3231 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 ---------------------------------------------------------------------------------------- --- Fri 4 Nov 2011 Day 308 --- 07 49 48 J1425+3231 10 33 26 44.2 92.9 -3.9 -45.1 -16 325 No stop 07 54 18 --- 10 37 57 44.9 93.8 -3.8 -45.1 254 360 07 49 52 07 56 05 J1425+3231 10 39 43 45.2 94.2 -3.8 -45.0 99 360 07 56 05 08 00 35 --- 10 44 14 45.8 95.2 -3.7 -45.0 270 395 07 56 09 08 01 07 J1422+3223 10 44 46 46.2 96.0 -3.6 -44.8 15 395 08 01 07 08 02 32 =1420+326 10 46 21 46.4 96.3 -3.6 -44.7 85 406 08 01 11 08 02 32 J1425+3231 10 46 11 46.1 95.6 -3.7 -44.9 -16 406 No stop 08 07 02 --- 10 50 42 46.8 96.6 -3.6 -44.8 254 441 08 02 36 08 08 49 J1425+3231 10 52 29 47.1 97.0 -3.6 -44.8 99 441 08 08 49 08 13 19 --- 10 57 00 47.7 98.0 -3.5 -44.6 270 475 08 08 53 08 13 51 J1422+3223 10 57 32 48.1 98.8 -3.4 -44.4 15 475 08 13 51 08 15 16 =1420+326 10 59 08 48.3 99.2 -3.4 -44.4 85 486 08 13 55 08 15 16 J1425+3231 10 58 58 48.0 98.4 -3.4 -44.6 -17 486 No stop 08 19 46 --- 11 03 28 48.7 99.4 -3.4 -44.4 253 521 08 15 20 08 21 33 J1425+3231 11 05 16 48.9 99.8 -3.3 -44.3 99 521 08 21 33 08 26 03 --- 11 09 47 49.6 100.9 -3.3 -44.2 270 556 08 21 37 08 26 36 J1422+3223 11 10 19 50.0 101.8 -3.2 -43.9 15 556 08 26 36 08 28 01 =1420+326 11 11 55 50.2 102.2 -3.2 -43.8 85 567 08 26 40 08 28 01 J1425+3231 11 11 45 49.9 101.3 -3.2 -44.1 -17 567 No stop 08 32 31 --- 11 16 15 50.6 102.4 -3.2 -43.9 253 602 08 28 05 08 34 19 J1425+3231 11 18 03 50.8 102.9 -3.1 -43.8 100 602 08 34 19 08 38 49 --- 11 22 34 51.5 104.0 -3.1 -43.5 270 637 08 34 23 08 39 22 J1422+3223 11 23 07 51.8 104.9 -3.0 -43.2 16 637 08 39 22 08 40 47 =1420+326 11 24 43 52.1 105.3 -3.0 -43.1 85 648 08 39 26 08 40 47 J1425+3231 11 24 33 51.8 104.4 -3.0 -43.4 -17 648 No stop 08 45 17 --- 11 29 03 52.4 105.6 -2.9 -43.1 253 683 08 40 51 08 47 05 J1425+3231 11 30 52 52.7 106.0 -2.9 -43.0 100 683 08 47 05 08 51 35 --- 11 35 23 53.3 107.2 -2.8 -42.7 270 717 08 47 09 08 52 09 J1422+3223 11 35 56 53.7 108.2 -2.8 -42.3 16 717 08 52 09 08 53 34 =1420+326 11 37 32 53.9 108.6 -2.8 -42.2 85 728 08 52 13 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: sess311.ef023b Matching groups in /usr/local/sched/catalogs/freq.dat: j1b18cm LO from Parry 23Jan97, must be using Low patch ****** Only 224.98 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 2 Station: JODRELL1 Total bit rate: 1024 Format: MKIV1:2 Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 0.50 Disk used to record data. 1st LO= 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 Net SB= L L U U L L U U L L U U L L U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 2 1 2 1 4 3 4 3 6 5 6 5 8 7 8 7 BBC SB= L L U U L L U U L L U U L L U U IF = 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N The following frequency sets based on these setups were used. Frequency Set: 3 Setup file default. LO sum= 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 BBC fr= 100.49 100.49 100.49 100.49 132.49 132.49 132.49 132.49 164.49 164.49 164.49 164.49 196.49 196.49 196.49 196.49 Bandwd= 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 Matching frequency sets: 3 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27, 66, 74, 82, 90, 67, 75, 83, 91 barrel=roll_off SOURCES USED IN RECORDING SCANS -- The double-peaked emission line quasar SDSS J1425+3231 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) * J1425+3231 14 22 58.709816 * 14 25 07.326700 14 25 36.949371 0.00 32 45 07.93455 * 32 31 37.51400 32 28 26.14162 0.00 From catalog imbedded in main SCHED input file. N comp. coords. from rsf04 1.275 scan and 65.489 baseline hours in setup: sess311.ef023b Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 10 11 * J1407+2827 14 04 45.615156 * 14 07 00.394414 14 07 31.605653 0.24 1404+286 28 41 29.23518 * 28 27 14.69021 28 23 52.07886 0.35 J1407+28 /usr/local/sched/catalogs/sources.vlba OQ208 GSFC 2010a astro solution 66201 Observations 0.156 scan and 8.556 baseline hours in setup: sess311.ef023b Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 10 11 * J1422+3223 14 20 21.232070 * 14 22 30.378960 14 23 00.134714 0.09 1420+326 32 36 47.54371 * 32 23 10.44016 32 19 57.31056 0.12 J1422+32 /usr/local/sched/catalogs/sources.vlba GSFC 2010a astro solution 374 Observations 0.424 scan and 21.212 baseline hours in setup: sess311.ef023b Frequency sets (dups not shown): 1 2 3 4 5 6 7 8 9 10 11 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) J1425+3231 47.8 J1407+2827 44.3 J1422+3223 47.7 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