Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.atnf.csiro.au/pub/people/vlbi/vsop/schedules/oct99/v047gsch.hh Дата изменения: Tue Sep 28 03:53:00 1999 Дата индексирования: Mon Jun 28 01:09:37 2010 Кодировка: Поисковые слова: dwingeloo 1

COVER INFORMATION

Station: HART_S2 (Code Hh )
Experiment: VSOP observation of 0537-286 at 1.6 GHz
Exp. Code: v047g


Schedule Version: 1.00
Processed by SCHED version: Release of 1 July 1999

PI: L.I. Gurvits

Address: JIVE and NFRA
Postbus 2
7990 AA Dwingeloo The Netherlands


Phone: +31 521 595100
EMAIL: lgurvits@jive.nfra.nl
Fax: +31 521 597332
Phone during observation:

Observing mode: VSOP, 1.6 GHz continuum, 128-2-2

Notes: Fringe finder : 0607-157




Schedule for HART_S2 (Code Hh ) Page 2
VSOP observation of 0537-286 at 1.6 GHz
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.
----------------------------------------------------------------------------------------
Start UT Source Start / Stop Early Tapes TPStart
Stop UT LST EL AZ HA UP ParA Dwell (see above)
----------------------------------------------------------------------------------------

--- Mon 11 Oct 1999 Day 284 ---

Next scan frequencies: 1634.00 1650.00
Next BBC frequencies: 143.40 159.40
Next scan bandwidths: 16.00 16.00

20 45 00 0537-286 23 55 44 15.3 114.8 -5.7 -111.5 0 1 1 52 20 45 00
21 00 00 --- 00 10 46 18.4 113.6 -5.5 -110.0 900 F 1 367

21 00 00 0537-286 00 10 46 18.4 113.6 -5.5 -110.0 -2 1 1 367 21 00 00
22 00 00 --- 01 10 56 31.0 109.3 -4.5 -104.6 3598 F 1 1627

22 00 00 0537-286 01 10 56 31.0 109.3 -4.5 -104.6 -2 1 1 1627 22 00 00
22 28 00 --- 01 39 01 37.0 107.6 -4.0 -102.2 1678 F 1 2215

22 30 00 0607-157 01 41 01 27.0 95.2 -4.5 -111.5 117 1 1 2257 22 30 00
22 40 00 --- 01 51 03 29.3 94.2 -4.3 -111.2 600 F 1 2467

----------- Tape Change ------------

22 44 00 0537-286 01 55 03 40.4 106.7 -3.7 -100.8 237 1 1 52 22 44 00
23 00 00 --- 02 11 06 43.9 105.8 -3.5 -99.5 960 F 1 388

23 00 00 0537-286 02 11 06 43.9 105.8 -3.5 -99.5 -2 1 1 388 23 00 00
23 59 59 --- 03 11 16 57.0 103.4 -2.5 -94.1 3597 F 1 1648

--- Tue 12 Oct 1999 Day 285 ---

00 00 00 0537-286 03 11 16 57.0 103.4 -2.5 -94.1 -2 1 1 1648 00 00 00
00 30 00 --- 03 41 21 63.6 102.8 -2.0 -91.0 1798 F 1 2278


SETUP FILE INFORMATION:
NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings.


Setup file: /home/sched/short-term/progs/current/setups/vsop1634_s2.set
Matches group hh18cm in /home/sched/short-term/progs/current/catalogs/freq.dat
e-mail Jonathan Quick 110599, but is LBA DAR

Setup group: 3 Station: HART_S2 Total bit rate: 128
Format: S2 Bits per sample: 2 Sample rate: 32.000
Number of channels: 2 Passes/head pos: 1 Speedup factor: 1.00

Tape speeds: Low density - 6.300 ips, High density - 4.20 ips
Time per pass for 7600 ft, High density tapes is: 06:01:54

1st LO= 1490.60 1490.60
Net SB= U U
Pol. = LCP LCP
BBC = 1 3
BBC SB= U U
IF = 1N 1N

The following frequency sets based on this setup were used.

Frequency Set: 4 Setup file default. No pcal detection.
LO sum= 1634.00 1650.00
BBC fr= 143.40 159.40
Bandwd= 16.000 16.000

Track assignments are:
track1= 0, 0
barrel=roll_off
 SOURCE LIST -- VSOP observation of 0537-286 at 1.6 GHz
Catalog positions marked with *.
Position of date is for stop time of first scan.
Names used in schedule marked with *.
Short names used in VLA and SNAP files marked with +.

Source Source position (RA/Dec)
(B1950) (J2000) (Date)

J0539-2839 05 37 56.930585 * 05 39 54.281464 05 39 53.678660
* 0537-286 -28 41 28.03743 *-28 39 55.94755 -28 39 47.15981
J0539-28 /home/sched/short-term/progs/current/catalogs/sources.vlba
USNO - Ref Frame 1998-6, Eubanks June 1998

J0609-1542 06 07 25.981281 * 06 09 40.949535 06 09 39.973190
* 0607-157 -15 42 03.30587 *-15 42 40.67266 -15 42 33.24283
J0609-15 /home/sched/short-term/progs/current/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)
0537-286 105.2
0607-157 101.7

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