Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.atnf.csiro.au/pub/people/vlbi/vsop/schedules/sep99/v006dsch.hh Дата изменения: Thu Aug 12 18:00:00 1999 Дата индексирования: Mon Jun 28 01:12:08 2010 Кодировка: Поисковые слова: m 63

COVER INFORMATION

Station: HART_S2 (Code Hh )
Experiment: VSOP observation of 1641-45 at 1.6 GHz
Exp. Code: v006d


Schedule Version: 1.00
Processed by SCHED version: Release of 1 Dec. 1998

PI: M.V. Popov

Address: ASC FIAN
84/32 Profsoyuznaya
Moscow 117810 Russia


Phone: 7-095-333-2512
EMAIL: mpopov@dpc.asc.rssi.ru
Fax: 7-095-333-2378
Phone during observation:

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

Notes: Fringe finder : 1622-253




Schedule for HART_S2 (Code Hh ) Page 2
VSOP observation of 1641-45 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.
-------------------------------------------------------------------------------
Start UT Source Start / Stop Early Tapes
Stop UT LST EL AZ HA UP ParA Dwell (see above)
-------------------------------------------------------------------------------

--- Mon 13 Sep 1999 Day 256 ---

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

09 45 00 1622-253 11 03 32 18.7 109.9 -5.4 -110.4 0 1 1 52
09 55 00 --- 11 13 33 20.9 109.1 -5.2 -109.6 600 F 1 263

09 55 00 1641-45 11 13 33 23.1 131.5 -5.5 -104.0 -3 1 1 263
10 00 00 --- 11 18 34 23.9 131.2 -5.4 -103.2 297 F 1 368

10 00 00 1641-45 11 18 34 23.9 131.2 -5.4 -103.2 -2 1 1 368
11 00 00 --- 12 18 44 34.3 129.5 -4.4 -93.2 3598 F 1 1628

11 00 00 1641-45 12 18 44 34.3 129.5 -4.4 -93.2 -2 1 1 1628
11 40 00 --- 12 58 51 41.2 129.6 -3.8 -85.9 2398 F 1 2468

11 40 00 1641-45 12 58 51 41.2 129.6 -3.8 -85.9 -2 1 1 2468
12 00 00 --- 13 18 54 44.7 130.1 -3.4 -81.9 1198 F 1 2888

12 00 00 1641-45 13 18 54 44.7 130.1 -3.4 -81.9 -2 1 1 2888
13 00 00 --- 14 19 04 54.8 134.3 -2.4 -67.9 3598 F 1 4148

13 00 00 1641-45 14 19 04 54.8 134.3 -2.4 -67.9 -2 1 1 4148
14 00 00 --- 15 19 14 63.6 145.2 -1.4 -47.7 3598 F 1 5408


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

LO sum= 1634.00 1650.00
1st LO= 1490.60 1490.60
Net SB= U U
Pol. = LCP LCP
BBC fr= 143.40 159.40
Bandwd= 16.00 16.00
BBC = 1 3
BBC SB= U U
IF = 1N 1N

Track assignments are:
track1= 0, 0
barrel=roll_off
 SOURCE LIST -- VSOP observation of 1641-45 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)

* 1641-45 16 41 10.289225 * 16 44 49.260000 16 44 46.640147
-45 53 38.58402 *-45 59 09.10000 -45 59 08.09639
From catalog imbedded in main SCHED input file.

J1625-2527 16 22 44.105295 * 16 25 46.891636 16 25 44.579351
* 1622-253 -25 20 51.69577 *-25 27 38.32698 -25 27 29.46971
J1625-25 /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)
1641-45 86.0
1622-253 78.6

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