COVER INFORMATION Station: ZELENCHK (Code Zc ) 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 ZELENCHK (Code Zc ) 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: 830.39 830.39 830.39 830.39 862.39 862.39 862.39 862.39 894.39 894.39 894.39 894.39 926.39 926.39 926.39 926.39 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 12 38 59 66.5 483.6 -1.5 -43.1 0 0 07 00 00 07 09 20 =1404+286 12 48 20 67.9 487.6 -1.3 -40.6 560 72 07 00 01 07 10 17 J1422+3223 12 49 17 68.4 474.1 -1.6 -51.2 18 72 07 10 17 07 11 42 =1420+326 12 50 52 68.7 474.7 -1.5 -50.9 85 83 07 10 18 07 11 42 J1425+3231 12 50 42 68.3 473.4 -1.6 -51.8 -15 83 No stop 07 16 12 --- 12 55 13 69.0 475.0 -1.5 -50.8 255 118 07 11 43 07 16 32 J1422+3223 12 55 34 69.4 476.5 -1.5 -49.9 5 118 07 16 32 07 17 57 =1420+326 12 56 59 69.7 477.0 -1.4 -49.6 85 129 07 16 33 07 17 57 J1425+3231 12 56 59 69.3 475.7 -1.5 -50.5 -15 129 No stop 07 22 27 --- 13 01 30 70.1 477.5 -1.4 -49.4 255 164 07 17 58 07 22 58 J1422+3223 13 02 01 70.5 479.1 -1.3 -48.3 15 164 07 22 58 07 24 23 =1420+326 13 03 36 70.7 479.7 -1.3 -47.9 85 175 07 22 59 07 24 23 J1425+3231 13 03 26 70.4 478.2 -1.4 -48.9 -16 175 No stop 07 28 53 --- 13 07 57 71.1 480.2 -1.3 -47.7 254 210 07 24 24 07 29 14 J1422+3223 13 08 18 71.4 481.8 -1.2 -46.6 5 210 07 29 14 07 30 39 =1420+326 13 09 43 71.7 482.5 -1.2 -46.1 85 221 07 29 15 07 30 39 J1425+3231 13 09 43 71.3 480.9 -1.3 -47.2 -16 221 No stop 07 35 09 --- 13 14 14 72.0 483.0 -1.2 -45.8 254 255 07 30 40 07 35 41 J1422+3223 13 14 45 72.4 484.9 -1.1 -44.5 15 255 07 35 41 07 37 06 =1420+326 13 16 21 72.6 485.7 -1.1 -43.9 85 266 07 35 42 07 37 06 J1425+3231 13 16 11 72.3 484.0 -1.2 -45.2 -16 266 No stop 07 41 36 --- 13 20 41 73.0 486.3 -1.1 -43.6 254 301 07 37 07 Schedule for ZELENCHK (Code Zc ) 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 13 21 03 73.3 488.2 -1.0 -42.2 4 301 07 41 57 07 43 22 =1420+326 13 22 28 73.5 489.0 -1.0 -41.6 85 312 07 41 58 07 43 22 J1425+3231 13 22 28 73.3 487.2 -1.1 -43.0 -17 312 No stop 07 47 52 --- 13 26 59 73.9 489.7 -1.0 -41.2 253 347 07 43 23 07 48 23 J1422+3223 13 27 30 74.2 491.9 -0.9 -39.5 14 347 07 48 23 07 49 48 =1420+326 13 29 05 74.4 492.8 -0.9 -38.8 85 358 07 48 24 07 49 48 J1425+3231 13 28 55 74.2 490.8 -0.9 -40.4 -17 358 No stop 07 54 18 --- 13 33 26 74.8 493.6 -0.9 -38.3 253 393 07 49 49 07 54 40 J1422+3223 13 33 48 75.0 495.8 -0.8 -36.6 4 393 07 54 40 07 56 05 =1420+326 13 35 13 75.2 496.8 -0.8 -35.8 85 404 07 54 41 07 56 05 J1425+3231 13 35 13 75.0 494.7 -0.8 -37.5 -17 404 No stop 08 00 35 --- 13 39 44 75.6 497.7 -0.8 -35.1 253 439 07 56 06 08 01 07 J1422+3223 13 40 16 75.8 500.3 -0.7 -33.1 13 439 08 01 07 08 02 32 =1420+326 13 41 51 76.0 501.4 -0.7 -32.2 85 450 08 01 08 08 02 32 J1425+3231 13 41 41 75.8 499.1 -0.7 -34.1 -18 450 No stop 08 07 02 --- 13 46 12 76.3 502.4 -0.7 -31.5 252 484 08 02 33 08 07 24 J1422+3223 13 46 34 76.5 505.0 -0.6 -29.3 3 484 08 07 24 08 08 49 =1420+326 13 47 59 76.6 506.2 -0.6 -28.4 85 495 08 07 25 08 08 49 J1425+3231 13 47 59 76.5 503.8 -0.6 -30.4 -18 495 No stop 08 13 19 --- 13 52 30 77.0 507.4 -0.6 -27.4 252 530 08 08 50 08 13 51 J1422+3223 13 53 02 77.1 510.4 -0.5 -25.0 12 530 08 13 51 08 15 16 =1420+326 13 54 37 77.3 511.7 -0.5 -23.9 85 541 08 13 52 08 15 16 J1425+3231 13 54 27 77.1 509.1 -0.5 -26.1 -19 541 No stop 08 19 46 --- 13 58 58 77.5 513.0 -0.4 -22.8 251 576 08 15 17 08 20 08 J1422+3223 13 59 20 77.6 516.0 -0.4 -20.3 2 576 08 20 08 08 21 33 =1420+326 14 00 46 77.7 517.3 -0.4 -19.2 85 587 08 20 09 08 21 33 J1425+3231 14 00 46 77.7 514.7 -0.4 -21.5 -19 587 No stop 08 26 03 --- 14 05 16 78.0 518.9 -0.3 -17.9 251 622 08 21 34 08 26 36 J1422+3223 14 05 49 78.1 522.2 -0.3 -15.2 12 622 08 26 36 08 28 01 =1420+326 14 07 24 78.1 523.8 -0.3 -13.8 85 633 08 26 37 Schedule for ZELENCHK (Code Zc ) 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 14 07 14 78.1 520.8 -0.3 -16.3 -20 633 No stop 08 32 31 --- 14 11 45 78.4 525.3 -0.2 -12.5 250 668 08 28 02 08 32 54 J1422+3223 14 12 08 78.3 528.6 -0.2 -9.8 2 668 08 32 54 08 34 19 =1420+326 14 13 33 78.4 530.0 -0.2 -8.5 85 679 08 32 55 08 34 19 J1425+3231 14 13 33 78.4 527.2 -0.2 -10.9 -19 679 No stop 08 38 49 --- 14 18 04 78.6 531.9 -0.1 -6.9 251 714 08 34 20 08 39 22 J1422+3223 14 18 37 78.5 535.3 -0.1 -4.0 12 714 08 39 22 08 40 47 =1420+326 14 20 12 78.5 537.0 0.0 -2.5 85 724 08 39 23 08 40 47 J1425+3231 14 20 02 78.6 534.0 -0.1 -5.1 -20 724 No stop 08 45 17 --- 14 24 33 78.7 538.9 0.0 -1.0 250 759 08 40 48 08 45 40 J1422+3223 14 24 56 78.5 542.1 0.0 1.8 3 759 08 45 40 08 47 05 =1420+326 14 26 22 78.5 543.6 0.1 3.0 85 770 08 45 41 08 47 05 J1425+3231 14 26 22 78.7 540.8 0.0 0.7 -19 770 No stop 08 51 35 --- 14 30 52 78.6 545.6 0.1 4.8 251 805 08 47 06 08 52 09 J1422+3223 14 31 26 78.4 548.9 0.1 7.6 13 805 08 52 09 08 53 34 =1420+326 14 33 01 78.4 550.6 0.2 9.0 85 816 08 52 10 08 53 34 J1425+3231 14 32 51 78.6 547.7 0.1 6.6 -19 816 No stop 08 58 04 --- 14 37 22 78.5 552.5 0.2 10.7 251 851 08 53 35 08 58 38 J1422+3223 14 37 56 78.2 555.6 0.2 13.3 14 851 08 58 38 09 00 00 =1420+326 14 39 28 78.1 557.1 0.3 14.6 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 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 9 Station: ZELENCHK 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= 780.10 780.10 780.10 780.10 780.10 780.10 780.10 780.10 780.10 780.10 780.10 780.10 780.10 780.10 780.10 780.10 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 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= L L U U L L U U L L U U L L U U IF = A B A B A B A B A B A B A B A B The following frequency sets based on these setups were used. Frequency Set: 8 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= 830.39 830.39 830.39 830.39 862.39 862.39 862.39 862.39 894.39 894.39 894.39 894.39 926.39 926.39 926.39 926.39 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: 8 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, 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