COVER INFORMATION Station: ONSALA85 (Code On ) 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 ONSALA85 (Code On ) 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: 110.49 110.49 110.49 110.49 142.49 142.49 142.49 142.49 174.49 174.49 174.49 174.49 206.49 206.49 206.49 206.49 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 10 40 23 43.9 106.3 -3.5 0.0 0 0 07 00 00 07 09 20 =1404+286 10 49 45 45.1 108.6 -3.3 0.0 560 72 07 00 04 07 10 17 J1422+3223 10 50 42 46.4 101.7 -3.5 0.0 31 72 07 10 17 07 11 42 =1420+326 10 52 17 46.6 102.0 -3.5 0.0 85 83 07 10 21 07 11 42 J1425+3231 10 52 07 46.3 101.2 -3.6 0.0 -11 83 No stop 07 16 12 --- 10 56 38 46.9 102.3 -3.5 0.0 259 118 07 11 46 07 16 32 J1422+3223 10 56 59 47.2 103.2 -3.4 0.0 10 118 07 16 32 07 17 57 =1420+326 10 58 24 47.4 103.5 -3.4 0.0 85 129 07 16 36 07 17 57 J1425+3231 10 58 24 47.2 102.8 -3.5 0.0 -11 129 No stop 07 22 27 --- 11 02 55 47.8 103.9 -3.4 0.0 259 164 07 18 01 07 22 58 J1422+3223 11 03 26 48.1 104.8 -3.3 0.0 20 164 07 22 58 07 24 23 =1420+326 11 05 01 48.3 105.2 -3.3 0.0 85 175 07 23 02 07 24 23 J1425+3231 11 04 51 48.0 104.3 -3.3 0.0 -11 175 No stop 07 28 53 --- 11 09 22 48.6 105.5 -3.3 0.0 259 210 07 24 27 07 29 14 J1422+3223 11 09 43 48.9 106.3 -3.2 0.0 10 210 07 29 14 07 30 39 =1420+326 11 11 08 49.1 106.7 -3.2 0.0 85 221 07 29 18 07 30 39 J1425+3231 11 11 08 48.8 105.9 -3.2 0.0 -11 221 No stop 07 35 09 --- 11 15 39 49.4 107.1 -3.2 0.0 259 255 07 30 43 07 35 41 J1422+3223 11 16 10 49.7 108.0 -3.1 0.0 20 255 07 35 41 07 37 06 =1420+326 11 17 45 49.9 108.4 -3.1 0.0 85 266 07 35 45 07 37 06 J1425+3231 11 17 35 49.7 107.6 -3.1 0.0 -11 266 No stop 07 41 36 --- 11 22 06 50.2 108.7 -3.1 0.0 259 301 07 37 10 Schedule for ONSALA85 (Code On ) 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 41 57 J1422+3223 11 22 27 50.5 109.7 -3.0 0.0 10 301 07 41 57 07 43 22 =1420+326 11 23 53 50.7 110.0 -3.0 0.0 85 312 07 42 01 07 43 22 J1425+3231 11 23 53 50.5 109.2 -3.0 0.0 -11 312 No stop 07 47 52 --- 11 28 23 51.0 110.4 -3.0 0.0 259 347 07 43 26 07 48 23 J1422+3223 11 28 55 51.3 111.4 -2.9 0.0 20 347 07 48 23 07 49 48 =1420+326 11 30 30 51.5 111.8 -2.9 0.0 85 358 07 48 27 07 49 48 J1425+3231 11 30 20 51.3 110.9 -2.9 0.0 -11 358 No stop 07 54 18 --- 11 34 51 51.9 112.2 -2.8 0.0 259 393 07 49 52 07 54 40 J1422+3223 11 35 13 52.1 113.1 -2.8 0.0 10 393 07 54 40 07 56 05 =1420+326 11 36 38 52.3 113.5 -2.8 0.0 85 404 07 54 44 07 56 05 J1425+3231 11 36 38 52.1 112.7 -2.8 0.0 -11 404 No stop 08 00 35 --- 11 41 09 52.6 113.9 -2.7 0.0 259 439 07 56 09 08 01 07 J1422+3223 11 41 40 52.9 114.9 -2.7 0.0 21 439 08 01 07 08 02 32 =1420+326 11 43 16 53.1 115.4 -2.7 0.0 85 450 08 01 11 08 02 32 J1425+3231 11 43 06 52.9 114.5 -2.7 0.0 -11 450 No stop 08 07 02 --- 11 47 36 53.4 115.8 -2.6 0.0 259 484 08 02 36 08 07 24 J1422+3223 11 47 58 53.7 116.8 -2.6 0.0 11 484 08 07 24 08 08 49 =1420+326 11 49 24 53.8 117.2 -2.6 0.0 85 495 08 07 28 08 08 49 J1425+3231 11 49 24 53.6 116.3 -2.6 0.0 -11 495 No stop 08 13 19 --- 11 53 54 54.2 117.6 -2.5 0.0 259 530 08 08 53 08 13 51 J1422+3223 11 54 27 54.4 118.7 -2.5 0.0 21 530 08 13 51 08 15 16 =1420+326 11 56 02 54.6 119.2 -2.4 0.0 85 541 08 13 55 08 15 16 J1425+3231 11 55 52 54.4 118.2 -2.5 0.0 -11 541 No stop 08 19 46 --- 12 00 23 54.9 119.6 -2.4 0.0 259 576 08 15 20 08 20 08 J1422+3223 12 00 45 55.2 120.6 -2.4 0.0 11 576 08 20 08 08 21 33 =1420+326 12 02 10 55.3 121.1 -2.3 0.0 85 587 08 20 12 08 21 33 J1425+3231 12 02 10 55.2 120.1 -2.4 0.0 -11 587 No stop 08 26 03 --- 12 06 41 55.7 121.5 -2.3 0.0 259 622 08 21 37 08 26 36 J1422+3223 12 07 14 55.9 122.6 -2.3 0.0 21 622 08 26 36 08 28 01 =1420+326 12 08 49 56.1 123.2 -2.2 0.0 85 633 08 26 40 Schedule for ONSALA85 (Code On ) Page 4 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 --- 08 28 01 J1425+3231 12 08 39 55.9 122.1 -2.3 0.0 -11 633 No stop 08 32 31 --- 12 13 10 56.4 123.6 -2.2 0.0 259 668 08 28 05 08 32 54 J1422+3223 12 13 33 56.6 124.7 -2.2 0.0 12 668 08 32 54 08 34 19 =1420+326 12 14 58 56.8 125.1 -2.1 0.0 85 679 08 32 58 08 34 19 J1425+3231 12 14 58 56.6 124.2 -2.2 0.0 -11 679 No stop 08 38 49 --- 12 19 29 57.1 125.6 -2.1 0.0 259 714 08 34 23 08 39 22 J1422+3223 12 20 02 57.3 126.8 -2.0 0.0 22 714 08 39 22 08 40 47 =1420+326 12 21 37 57.5 127.4 -2.0 0.0 85 724 08 39 26 08 40 47 J1425+3231 12 21 27 57.3 126.3 -2.1 0.0 -11 724 No stop 08 45 17 --- 12 25 58 57.8 127.8 -2.0 0.0 259 759 08 40 51 08 45 40 J1422+3223 12 26 21 58.0 129.0 -1.9 0.0 12 759 08 45 40 08 47 05 =1420+326 12 27 46 58.2 129.5 -1.9 0.0 85 770 08 45 44 08 47 05 J1425+3231 12 27 46 58.0 128.4 -2.0 0.0 -11 770 No stop 08 51 35 --- 12 32 17 58.5 130.0 -1.9 0.0 259 805 08 47 09 08 52 09 J1422+3223 12 32 51 58.7 131.3 -1.8 0.0 22 805 08 52 09 08 53 34 =1420+326 12 34 26 58.8 131.8 -1.8 0.0 85 816 08 52 13 08 53 34 J1425+3231 12 34 16 58.7 130.7 -1.9 0.0 -11 816 No stop 08 58 04 --- 12 38 47 59.1 132.3 -1.8 0.0 259 851 08 53 38 08 58 38 J1422+3223 12 39 20 59.3 133.6 -1.7 0.0 23 851 08 58 38 09 00 00 =1420+326 12 40 53 59.5 134.2 -1.7 0.0 82 861 08 58 42 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: on21cm1 Values from E-mail J.Conway (CR 21Oct02) ****** Only 244.98 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 3 Station: ONSALA85 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= 1500.00 1500.00 1500.00 1500.00 1500.00 1500.00 1500.00 1500.00 1500.00 1500.00 1500.00 1500.00 1500.00 1500.00 1500.00 1500.00 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: 4 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= 110.49 110.49 110.49 110.49 142.49 142.49 142.49 142.49 174.49 174.49 174.49 174.49 206.49 206.49 206.49 206.49 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: 4 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