COVER INFORMATION Station: SHANGHAI (Code Sh ) 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 SHANGHAI (Code Sh ) 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: 689.51 689.51 689.51 689.51 657.51 657.51 657.51 657.51 625.51 625.51 625.51 625.51 593.51 593.51 593.51 593.51 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 17 57 31 40.6 -77.6 3.8 71.9 0 0 07 00 00 07 09 20 =1404+286 18 06 53 38.6 -76.8 4.0 71.4 560 72 07 00 01 07 10 17 J1422+3223 18 07 49 42.7 -73.0 3.7 75.7 45 72 07 10 17 07 11 42 =1420+326 18 09 25 42.4 -72.8 3.8 75.5 85 83 07 10 18 07 11 42 J1425+3231 18 09 15 43.0 -72.9 3.7 75.9 -5 83 No stop 07 16 12 --- 18 13 45 42.1 -72.5 3.8 75.5 265 118 07 11 43 07 16 32 J1422+3223 18 14 06 41.5 -72.5 3.9 75.1 16 118 07 16 32 07 17 57 =1420+326 18 15 31 41.2 -72.4 3.9 75.0 85 129 07 16 33 07 17 57 J1425+3231 18 15 31 41.7 -72.4 3.8 75.4 -5 129 No stop 07 22 27 --- 18 20 02 40.8 -72.1 3.9 75.0 265 164 07 17 58 07 22 58 J1422+3223 18 20 33 40.1 -72.0 4.0 74.6 26 164 07 22 58 07 24 23 =1420+326 18 22 08 39.8 -71.9 4.0 74.4 85 175 07 22 59 07 24 23 J1425+3231 18 21 58 40.4 -71.9 3.9 74.8 -5 175 No stop 07 28 53 --- 18 26 29 39.5 -71.6 4.0 74.4 265 210 07 24 24 07 29 14 J1422+3223 18 26 50 38.9 -71.6 4.1 74.0 16 210 07 29 14 07 30 39 =1420+326 18 28 16 38.6 -71.5 4.1 73.9 85 221 07 29 15 07 30 39 J1425+3231 18 28 16 39.1 -71.5 4.0 74.3 -5 221 No stop 07 35 09 --- 18 32 46 38.2 -71.2 4.1 73.9 265 255 07 30 40 07 35 41 J1422+3223 18 33 18 37.6 -71.1 4.2 73.5 26 255 07 35 41 07 37 06 =1420+326 18 34 53 37.2 -71.0 4.2 73.3 85 266 07 35 42 07 37 06 J1425+3231 18 34 43 37.8 -71.0 4.2 73.7 -5 266 No stop 07 41 36 --- 18 39 14 36.9 -70.7 4.2 73.3 265 301 07 37 07 Schedule for SHANGHAI (Code Sh ) 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 18 39 35 36.3 -70.6 4.3 72.9 16 301 07 41 57 07 43 22 =1420+326 18 41 00 36.0 -70.5 4.3 72.8 85 312 07 41 58 07 43 22 J1425+3231 18 41 00 36.6 -70.5 4.3 73.1 -5 312 No stop 07 47 52 --- 18 45 31 35.7 -70.2 4.3 72.7 265 347 07 43 23 07 48 23 J1422+3223 18 46 03 35.0 -70.1 4.4 72.4 27 347 07 48 23 07 49 48 =1420+326 18 47 38 34.7 -70.0 4.4 72.2 85 358 07 48 24 07 49 48 J1425+3231 18 47 28 35.3 -70.0 4.4 72.6 -5 358 No stop 07 54 18 --- 18 51 58 34.4 -69.7 4.4 72.1 265 393 07 49 49 07 54 40 J1422+3223 18 52 20 33.7 -69.6 4.5 71.8 17 393 07 54 40 07 56 05 =1420+326 18 53 45 33.4 -69.5 4.5 71.7 85 404 07 54 41 07 56 05 J1425+3231 18 53 45 34.0 -69.5 4.5 72.0 -5 404 No stop 08 00 35 --- 18 58 16 33.1 -69.2 4.5 71.6 265 439 07 56 06 08 01 07 J1422+3223 18 58 48 32.4 -69.1 4.6 71.2 27 439 08 01 07 08 02 32 =1420+326 19 00 23 32.1 -69.0 4.6 71.1 85 450 08 01 08 08 02 32 J1425+3231 19 00 13 32.7 -69.0 4.6 71.4 -5 450 No stop 08 07 02 --- 19 04 44 31.8 -68.7 4.7 71.0 265 484 08 02 33 08 07 24 J1422+3223 19 05 06 31.2 -68.6 4.7 70.6 17 484 08 07 24 08 08 49 =1420+326 19 06 31 30.9 -68.5 4.7 70.5 85 495 08 07 25 08 08 49 J1425+3231 19 06 31 31.4 -68.5 4.7 70.8 -5 495 No stop 08 13 19 --- 19 11 02 30.5 -68.2 4.8 70.4 265 530 08 08 50 08 13 51 J1422+3223 19 11 34 29.9 -68.0 4.8 70.0 27 530 08 13 51 08 15 16 =1420+326 19 13 10 29.6 -67.9 4.8 69.9 85 541 08 13 52 08 15 16 J1425+3231 19 13 00 30.2 -68.0 4.8 70.2 -5 541 No stop 08 19 46 --- 19 17 30 29.3 -67.6 4.9 69.8 265 576 08 15 17 08 20 08 J1422+3223 19 17 53 28.6 -67.5 4.9 69.5 18 576 08 20 08 08 21 33 =1420+326 19 19 18 28.3 -67.4 4.9 69.3 85 587 08 20 09 08 21 33 J1425+3231 19 19 18 28.9 -67.5 4.9 69.6 -5 587 No stop 08 26 03 --- 19 23 49 28.0 -67.1 5.0 69.2 265 622 08 21 34 08 26 36 J1422+3223 19 24 21 27.3 -67.0 5.0 68.8 28 622 08 26 36 08 28 01 =1420+326 19 25 57 27.0 -66.8 5.0 68.7 85 633 08 26 37 Schedule for SHANGHAI (Code Sh ) 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 19 25 47 27.6 -66.9 5.0 69.0 -5 633 No stop 08 32 31 --- 19 30 17 26.7 -66.5 5.1 68.6 265 668 08 28 02 08 32 54 J1422+3223 19 30 40 26.1 -66.4 5.1 68.2 18 668 08 32 54 08 34 19 =1420+326 19 32 05 25.8 -66.3 5.2 68.1 85 679 08 32 55 08 34 19 J1425+3231 19 32 05 26.4 -66.4 5.1 68.4 -5 679 No stop 08 38 49 --- 19 36 36 25.5 -66.0 5.2 68.0 265 714 08 34 20 08 39 22 J1422+3223 19 37 09 24.8 -65.9 5.2 67.6 28 714 08 39 22 08 40 47 =1420+326 19 38 45 24.5 -65.7 5.3 67.5 85 724 08 39 23 08 40 47 J1425+3231 19 38 35 25.1 -65.8 5.2 67.8 -5 724 No stop 08 45 17 --- 19 43 05 24.2 -65.4 5.3 67.4 265 759 08 40 48 08 45 40 J1422+3223 19 43 29 23.6 -65.3 5.3 67.0 18 759 08 45 40 08 47 05 =1420+326 19 44 54 23.3 -65.2 5.4 66.9 85 770 08 45 41 08 47 05 J1425+3231 19 44 54 23.9 -65.3 5.3 67.2 -5 770 No stop 08 51 35 --- 19 49 25 23.0 -64.8 5.4 66.7 265 805 08 47 06 08 52 09 J1422+3223 19 49 58 22.3 -64.7 5.4 66.4 29 805 08 52 09 08 53 34 =1420+326 19 51 34 22.0 -64.6 5.5 66.2 85 816 08 52 10 08 53 34 J1425+3231 19 51 23 22.6 -64.7 5.4 66.5 -5 816 No stop 08 58 04 --- 19 55 54 21.8 -64.3 5.5 66.1 265 851 08 53 35 08 58 38 J1422+3223 19 56 28 21.1 -64.1 5.6 65.7 29 851 08 58 38 09 00 00 =1420+326 19 58 00 20.8 -64.0 5.6 65.6 82 861 08 58 39 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: sh18cm Huang Xinyong 27Sept05 ****** 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: 7 Station: SHANGHAI Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 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 = 1 2 1 2 3 4 3 4 5 6 5 6 7 8 7 8 BBC SB= U U L L U U L L U U L L U U L L IF = C A C A C A C A C A C A C A C A The following frequency sets based on these setups were used. Frequency Set: 11 Setup file default. Used pcal sets: 1 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= 689.51 689.51 689.51 689.51 657.51 657.51 657.51 657.51 625.51 625.51 625.51 625.51 593.51 593.51 593.51 593.51 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: 11 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S5 S7 S9 S11 S13 S15 PCALXB2= S2 S4 S6 S8 S10 S12 S14 S16 PCALFR1= 490 510 490 510 490 510 490 510 PCALFR2= 490 510 490 510 490 510 490 510 Track assignments are: track1= 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 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