COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: 3C48 Exp. Code: EA033 Schedule Version: 1.00 Processed by SCHED version: 6.01 Release: Late March 2005 PI: T.An Address: Shanghai Astronomical Observatory Nandan Road 80 Shanghai CHINA Phone: +8621 64386191 EMAIL: antao@shao.ac.cn Fax: +8621 64384618 Phone during observation: +8621 57651763 Observing mode: EVN+MERLIN, 3C48 at 18cm (256 Mb/s) Notes: Schedule for SHANGHAI (Code Sh ) Page 2 3C48 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 7 Jun 2005 Day 158 --- Next scan frequencies: 1637.99 1637.99 1645.99 1645.99 1653.99 1653.99 1661.99 1661.99 Next BBC frequencies: 562.01 562.01 554.01 554.01 546.01 546.01 538.01 538.01 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 02 00 00 3C48 03 07 06 71.1 -77.8 1.5 90.2 0 1 1 0 02 00 00 02 22 00 --- 03 29 09 66.4 -77.5 1.9 87.5 1320 F 1 17600 02 23 00 3C48 03 30 10 66.2 -77.5 1.9 87.3 57 1 2 17600 02 23 00 02 45 00 --- 03 52 13 61.6 -76.8 2.2 85.0 1320 R 1 0 02 46 00 3C48 03 53 13 61.4 -76.8 2.3 84.9 57 1 3 0 02 46 00 03 08 00 --- 04 15 17 56.8 -75.8 2.6 82.7 1320 F 1 17600 03 09 00 3C48 04 16 17 56.6 -75.7 2.6 82.6 57 1 4 17600 03 09 00 03 31 00 --- 04 38 21 52.1 -74.6 3.0 80.5 1320 R 1 0 03 32 00 3C48 04 39 21 51.8 -74.5 3.0 80.4 57 1 5 0 03 32 00 03 54 00 --- 05 01 24 47.3 -73.2 3.4 78.4 1320 F 1 17600 03 55 00 3C48 05 02 25 47.1 -73.2 3.4 78.3 57 1 6 17600 03 55 00 04 17 00 --- 05 24 28 42.6 -71.7 3.8 76.3 1320 R 1 0 04 18 00 3C48 05 25 28 42.4 -71.7 3.8 76.2 57 1 7 0 04 18 00 04 40 00 --- 05 47 32 37.9 -70.1 4.2 74.2 1320 F 1 17600 04 41 00 3C48 05 48 32 37.7 -70.0 4.2 74.1 57 1 8 17600 04 41 00 05 03 00 --- 06 10 36 33.3 -68.4 4.5 72.0 1320 R 1 0 05 04 00 DA193 06 11 36 80.7 -19.1 0.3 158.6 -100 1 9 0 05 04 00 05 15 00 --- 06 22 38 79.7 -30.1 0.4 146.0 560 F 1 8800 05 17 00 3C48 06 24 38 30.5 -67.3 4.8 70.7 -46 1 9 8800 05 17 00 05 28 00 --- 06 35 40 28.4 -66.4 5.0 69.6 614 F 1 17600 05 29 00 3C48 06 36 40 28.2 -66.3 5.0 69.5 57 1 10 17600 05 29 00 05 51 00 --- 06 58 44 23.9 -64.4 5.3 67.3 1320 R 1 0 05 52 00 3C48 06 59 44 23.7 -64.3 5.4 67.2 57 1 11 0 05 52 00 06 14 00 --- 07 21 47 19.5 -62.3 5.7 64.9 1320 F 1 17600 Schedule for SHANGHAI (Code Sh ) Page 3 3C48 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 7 Jun 2005 Day 158 --- 06 15 00 3C48 07 22 48 19.3 -62.2 5.7 64.8 57 1 12 17600 06 15 00 06 37 00 --- 07 44 51 15.1 -60.1 6.1 62.5 1320 R 1 0 06 47 35 3C138 07 55 28 52.2 256.6 2.6 60.4 0 1 13 0 06 47 35 06 58 35 --- 08 06 30 49.9 258.7 2.8 61.2 660 F 1 8800 Source only 7.6 degrees from the Sun. 06 58 35 DA193 08 06 30 62.2 297.3 2.2 98.0 -79 1 13 8800 06 58 35 07 09 35 --- 08 17 32 60.1 296.8 2.4 95.8 581 F 1 17600 07 14 26 3C48 08 22 23 8.3 303.9 6.7 58.1 116 1 14 17600 07 14 26 07 36 26 --- 08 44 27 4.5 306.4 7.1 D 55.4 0 R 1 0 ----------- Tape Change ------------ 07 51 26 3C48 08 59 29 1.9 308.3 7.4 D 53.4 894 1 1 0 07 51 26 08 13 26 --- 09 21 33 -1.7 311.1 7.7 D 50.4 0 F 1 17600 08 14 26 3C48 09 22 33 -1.9 311.3 7.7 D 50.3 58 1 2 17600 08 14 26 08 36 26 --- 09 44 37 -5.4 314.3 8.1 D 47.1 0 R 1 0 08 41 17 3C138 09 49 29 27.9 273.4 4.5 63.1 208 1 3 0 08 41 17 08 52 17 --- 10 00 31 25.6 274.7 4.7 63.0 660 F 1 8800 Source only 7.6 degrees from the Sun. 08 52 17 DA193 10 00 31 40.4 297.9 4.1 80.0 -51 1 3 8800 08 52 17 09 03 17 --- 10 11 33 38.3 298.5 4.3 78.6 609 F 1 17600 09 11 07 3C48 10 19 23 -10.4 319.6 8.7 D 41.6 356 1 4 17600 09 11 07 09 33 07 --- 10 41 27 -13.4 323.2 9.1 D 37.8 0 R 1 0 09 34 07 3C48 10 42 27 -13.5 323.4 9.1 D 37.6 58 1 5 0 09 34 07 09 56 07 --- 11 04 31 -16.2 327.3 9.4 D 33.6 0 F 1 17600 09 57 07 3C48 11 05 31 -16.3 327.4 9.5 D 33.4 58 1 6 17600 09 57 07 10 19 07 --- 11 27 35 -18.7 331.6 9.8 D 29.1 0 R 1 0 10 25 44 3C138 11 34 13 5.9 285.9 6.2 59.3 304 1 7 0 10 25 44 10 36 44 --- 11 45 15 3.6 287.3 6.4 D 58.6 0 F 1 8800 Source only 7.6 degrees from the Sun. 10 36 44 DA193 11 45 15 21.2 304.6 5.8 66.5 -56 1 7 8800 10 36 44 10 47 44 --- 11 56 17 19.2 305.6 6.0 65.1 604 F 1 17600 Schedule for SHANGHAI (Code Sh ) Page 4 3C48 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 7 Jun 2005 Day 158 --- 10 57 08 3C48 12 05 42 -22.1 339.3 10.5 D 21.2 495 1 8 17600 10 57 08 11 19 08 --- 12 27 46 -23.6 344.0 10.8 D 16.4 0 R 1 0 11 20 08 3C48 12 28 46 -23.7 344.2 10.8 D 16.1 58 1 9 0 11 20 08 11 42 08 --- 12 50 50 -24.8 349.1 11.2 D 11.1 0 F 1 17600 11 48 35 3C138 12 57 17 -10.7 297.0 7.6 D 52.8 280 1 10 17600 11 48 35 11 59 35 --- 13 08 19 -12.8 298.7 7.8 D 51.6 0 R 1 8800 Source only 7.6 degrees from the Sun. 11 59 35 DA193 13 08 19 7.3 312.6 7.2 55.1 -30 1 10 8800 11 59 35 12 10 35 --- 13 19 21 5.5 313.9 7.4 53.5 630 R 1 0 12 11 35 3C48 13 20 21 -25.6 355.9 11.7 D 4.2 -26 1 11 0 12 11 35 12 33 35 --- 13 42 25 -25.7 361.0-11.9 D -1.1 0 F 1 17600 12 34 35 3C48 13 43 25 -25.7 361.3-11.9 D -1.3 58 1 12 17600 12 34 35 12 56 35 --- 14 05 28 -25.4 366.4-11.5 D -6.5 0 R 1 0 13 02 06 3C138 14 11 00 -23.9 309.3 8.8 D 43.8 215 1 13 0 13 02 06 13 13 06 --- 14 22 02 -25.7 311.4 9.0 D 42.1 0 F 1 8800 Source only 7.6 degrees from the Sun. 13 13 06 DA193 14 22 02 -3.5 321.8 8.4 D 43.6 -23 1 13 8800 13 13 06 13 24 06 --- 14 33 04 -4.9 323.4 8.6 D 41.7 0 F 1 17600 13 26 06 3C48 14 35 04 -24.3 373.1-11.0 D -13.4 19 1 14 17600 13 26 06 13 34 06 --- 14 43 06 -23.9 374.9-10.9 D -15.2 0 R 1 11200 13 48 53 3C286 14 57 56 71.4 273.7 1.4 82.5 664 1 14 11200 13 48 53 13 59 53 --- 15 08 57 69.1 274.7 1.6 82.0 660 R 1 2400 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: ea033.18cm Matches group sh18cm in /home/vlbi/sched/catalogs/freq.dat Huang Xinyong 170300, dual pol but narrow(?) Setup group: 8 Station: SHANGHAI Total bit rate: 256 Format: MKIV1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 270.000 ips, High density - 160.00 ips Time per pass for 17600 ft, High density tapes is: 00:22:00 1st LO= 2200.00 2200.00 2200.00 2200.00 2200.00 2200.00 2200.00 2200.00 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= L L L L L L L L IF = C A C A C A C A The following frequency sets based on this setup were used. Frequency Set: 8 Setup file default. Used pcal sets: 1 LO sum= 1637.99 1637.99 1645.99 1645.99 1653.99 1653.99 1661.99 1661.99 BBC fr= 562.01 562.01 554.01 554.01 546.01 546.01 538.01 538.01 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= 10 10 10 10 6010 6010 6010 6010 PCALFR2= 10 10 10 10 6010 6010 6010 6010 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off SOURCE LIST -- 3C48 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) J0137+3309 01 34 49.826428 * 01 37 41.299494 01 37 58.240862 0.90 0134+329 32 54 20.25964 * 33 09 35.13382 33 11 04.85479 0.91 * 3C48 /home/vlbi/sched/catalogs/sources.vlba J0137+33 VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 8.017 scan hours, 286.509 baseline hours above horizon. J0521+1638 05 18 16.514154 * 05 21 09.886036 05 21 26.865476 0.58 0518+165 16 35 26.83434 * 16 38 22.05180 16 38 46.19998 0.76 * 3C138 /home/vlbi/sched/catalogs/sources.vlba J0521+16 VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.917 scan hours, 34.832 baseline hours above horizon. J0555+3948 05 52 01.407172 * 05 55 30.805614 05 55 51.310111 0.26 0552+398 39 48 21.94585 * 39 48 49.16500 39 49 00.30450 0.40 * DA193 /home/vlbi/sched/catalogs/sources.vlba J0555+39 VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 1.100 scan hours, 34.346 baseline hours above horizon. J1331+3030 13 28 49.657757 * 13 31 08.288049 13 31 24.176855 0.37 1328+307 30 45 58.64062 * 30 30 32.95926 30 28 58.46438 0.47 * 3C286 /home/vlbi/sched/catalogs/sources.vlba J1331+30 VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.183 scan hours, 5.133 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) 3C48 45.8 3C138 7.6 DA193 20.5 3C286 106.6 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