COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: GG038C:EVN+VLBA+Y27: 4+2 cm -01/jun/01 UT:20-07 EU; 00-11 US Exp. Code: GG038C Schedule Version: 2.00 Processed by SCHED version: Short term release of 12 Feb. 2001 PI: GABRIELE GIOVANNINI Address: ISTITUTO DI RADIOASTRONOMIA VIA GOBETTI 101 I-40129 BOLOGNA, ITALY Phone: +39-051-6399415 EMAIL: GGIOVANN@IRA.BO.CNR.IT Fax: +39-051-6399431 Phone during observation: +39-051-6399415 Observing mode: VLBA 128-8-1 - continuum at 3.6cm and 2cm Notes: Send Logs and Calibration Info to the PI One Thin Tape Greg Taylor is the local contact person at 4cm I am using a personal setup by H.Langevelde:gg038c.set Schedule for SHANGHAI (Code Sh ) Page 2 GG038C:EVN+VLBA+Y27: 4+2 cm -01/jun/01 UT:20-07 EU; 00-11 US 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) ---------------------------------------------------------------------------------------- --- Fri 1 Jun 2001 Day 152 --- Next scan frequencies: 8413.49 8413.49 8413.49 8413.49 8429.49 8429.49 8429.49 8429.49 Next BBC frequencies: 813.49 813.49 813.49 813.49 829.49 829.49 829.49 829.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 20 00 00 3C338 20 46 16 37.9 298.2 4.3 78.1 0 1 1 0 20 00 00 20 22 00 --- 21 08 20 33.8 299.4 4.7 75.3 1320 F 1 8800 20 22 40 3C338 21 09 00 33.6 299.5 4.7 75.2 38 1 1 8800 20 22 40 20 44 40 --- 21 31 04 29.6 300.9 5.0 72.4 1320 F 1 17600 20 47 11 1749+096 21 33 35 34.4 259.9 3.7 58.8 67 1 2 17600 20 47 11 20 55 11 --- 21 41 36 32.7 261.1 3.8 59.1 480 R 1 14400 20 57 45 3C338 21 44 11 27.2 301.8 5.3 70.8 71 1 2 14400 20 57 45 21 15 45 --- 22 02 14 23.9 303.1 5.6 68.5 1080 R 1 7200 21 16 25 3C338 22 02 54 23.8 303.2 5.6 68.4 38 1 2 7200 21 16 25 21 34 25 --- 22 20 57 20.6 304.6 5.9 66.1 1080 R 1 0 21 35 05 3C338 22 21 37 20.4 304.7 5.9 66.0 38 1 3 0 21 35 05 21 57 05 --- 22 43 41 16.6 306.6 6.2 63.1 1320 F 1 8800 21 57 45 3C338 22 44 21 16.5 306.7 6.3 63.0 38 1 3 8800 21 57 45 22 19 45 --- 23 06 24 12.8 308.7 6.6 60.0 1320 F 1 17600 22 20 25 3C338 23 07 04 12.6 308.8 6.6 59.9 38 1 4 17600 22 20 25 22 40 25 --- 23 27 08 9.3 310.9 7.0 57.1 1200 R 1 9600 22 57 54 3C338 23 44 39 6.5 312.8 7.3 54.6 1038 1 4 9600 22 57 54 23 17 54 --- 00 04 43 3.5 315.1 7.6 D 51.6 0 R 1 1600 23 21 26 OQ208 00 08 16 -24.1 331.5 10.0 D 27.7 178 1 4 1600 23 21 26 23 25 26 --- 00 12 16 -24.5 332.4 10.1 D 26.9 0 R 1 0 23 28 29 3C338 00 15 20 1.9 316.4 7.8 D 50.0 149 1 5 0 23 28 29 23 50 29 --- 00 37 24 -1.3 319.2 8.1 D 46.5 0 F 1 8800 Schedule for SHANGHAI (Code Sh ) Page 3 GG038C:EVN+VLBA+Y27: 4+2 cm -01/jun/01 UT:20-07 EU; 00-11 US 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) ---------------------------------------------------------------------------------------- --- Start: Fri 1 Jun 2001 Day 152 -- Stop: Sat 2 Jun 2001 Day 153 --- 23 51 09 3C338 00 38 04 -1.4 319.3 8.2 D 46.4 38 1 5 8800 23 51 09 00 13 09 --- 01 00 07 -4.4 322.4 8.5 D 42.7 0 F 1 17600 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: ./gg038c.set Matches group shsx in /lsoft/sched/catalogs/freq.dat From Porcas, from Huang Xinyong 231198 Setup group: 9 Station: SHANGHAI Total bit rate: 128 Format: MKIV1:4 Bits per sample: 1 Sample rate: 16.000 Number of channels: 8 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 135.000 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 Net SB= L L U U L L U U Pol. = RCP RCP RCP RCP RCP RCP RCP RCP BBC = 1 2 1 2 3 4 3 4 BBC SB= L L U U L L U U IF = A A A A A A A A The following frequency sets based on this setup were used. Frequency Set: 6 Setup file default. Used pcal sets: 1 LO sum= 8413.49 8413.49 8413.49 8413.49 8429.49 8429.49 8429.49 8429.49 BBC fr= 813.49 813.49 813.49 813.49 829.49 829.49 829.49 829.49 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= 490 510 490 510 6490 6510 6490 6510 PCALFR2= 490 510 490 510 6490 6510 6490 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off SOURCE LIST -- GG038C:EVN+VLBA+Y27: 4+2 cm -01/jun/01 UT:20-07 EU; 00-11 US 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). Source Source position (RA/Dec) (B1950) (J2000) (Date) * 3C338 * 16 26 55.319000 16 28 38.243708 16 28 42.119886 * 39 39 36.49300 39 33 04.18682 39 32 56.43559 From catalog imbedded in main SCHED input file. J1256-0547 12 53 35.831291 * 12 56 11.166558 12 56 15.179274 1253-055 -05 31 07.99574 *-05 47 21.52460 -05 47 46.14540 * 3C279 /lsoft/sched/catalogs/sources.vlba J1256-05 USNO - Ref Frame 1998-6, Eubanks June 1998 J1407+2827 14 04 45.615152 * 14 07 00.394411 14 07 04.359888 1404+286 28 41 29.23491 * 28 27 14.68994 28 27 01.28244 J1407+28 /lsoft/sched/catalogs/sources.vlba * OQ208 USNO - Ref Frame 1998-6, Eubanks June 1998 J1635+3808 16 33 30.625098 * 16 35 15.492973 16 35 19.383800 1633+38 38 14 10.08278 * 38 08 04.50056 38 07 56.90339 1633+382 /lsoft/sched/catalogs/sources.vlba * J1635+38 USNO - Ref Frame 1998-6, Eubanks June 1998 J1642+3948 16 41 17.606463 * 16 42 58.810200 16 43 02.667345 1641+399 39 54 10.81592 * 39 48 36.99500 39 48 29.73287 * 3C345 /lsoft/sched/catalogs/sources.vlba J1642+39 JVAS - Patnaik et al. 1992, mnras, 254, 655; S8.4GHz= 5182 mJy J1751+0939 17 49 10.387930 * 17 51 32.818573 17 51 37.145118 * 1749+096 09 39 42.82582 * 09 39 00.72837 09 38 57.94963 J1751+09 /lsoft/sched/catalogs/sources.vlba USNO - Ref Frame 1998-6, Eubanks June 1998 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) 3C338 118.2 3C279 123.5 OQ208 117.3 J1635+38 119.7 3C345 118.0 1749+096 143.7 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