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COVER INFORMATION

Station: CEDUNA (Code Cd )
Experiment: VSOP observation of J1733-13 at 5 GHz
Exp. Code: w030e2


Schedule Version: 1.00
Processed by SCHED version: Release of 28 April 2000

PI: S. Tingay

Address: Australia Telescope National Facility
Paul Wild Observatory
Narrabri, NSW 2390, Australia


Phone: +61 2 679 23245
EMAIL: stingay@atnf.csiro.au
Fax: +61 2 679 04090
Phone during observation:

Observing mode: VSOP, 5 GHz continuum, 128-2-2

Notes: Fringe finders/Amp.Cal. checks : J1550+05 and J1743-03




Schedule for CEDUNA (Code Cd ) Page 2
VSOP observation of J1733-13 at 5 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 5 Jun 2000 Day 157 ---

Next scan frequencies: 4800.00 4816.00
Next BBC frequencies: 700.00 716.00
Next scan bandwidths: 16.00 16.00

09 45 00 J1733-13 11 36 45 7.6 100.7 -5.9 -121.0 0 1 1 52 09 45 00
10 00 00 --- 11 51 48 10.8 98.8 -5.7 -120.5 900 F 1 367

10 00 00 J1733-13 11 51 48 10.8 98.8 -5.7 -120.5 -2 1 1 367 10 00 00
10 30 00 --- 12 21 53 17.1 95.0 -5.2 -119.7 1798 F 1 997

10 30 00 J1733-13 12 21 53 17.1 95.0 -5.2 -119.7 -2 1 1 997 10 30 00
11 00 00 --- 12 51 58 23.5 91.2 -4.7 -119.3 1798 F 1 1627

11 00 00 J1733-13 12 51 58 23.5 91.2 -4.7 -119.3 -2 1 1 1627 11 00 00
11 30 00 --- 13 22 03 29.9 87.1 -4.2 -119.4 1798 F 1 2257

11 30 30 J1743-03 13 22 33 22.9 79.8 -4.4 -123.1 17 1 1 2268 11 30 30
11 34 30 --- 13 26 33 23.7 79.2 -4.3 -123.3 240 F 1 2352

11 35 00 J1733-13 13 27 03 30.9 86.4 -4.1 -119.5 17 1 1 2362 11 35 00
12 00 00 --- 13 52 08 36.2 82.8 -3.7 -120.1 1500 F 1 2887

12 00 00 J1733-13 13 52 08 36.2 82.8 -3.7 -120.1 -2 1 1 2887 12 00 00
12 30 00 --- 14 22 12 42.5 78.0 -3.2 -121.5 1798 F 1 3517

12 30 00 J1733-13 14 22 12 42.5 78.0 -3.2 -121.5 -2 1 1 3517 12 30 00
13 00 00 --- 14 52 17 48.7 72.3 -2.7 -123.8 1798 F 1 4147


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/vsop4800.set
Matches group cd6cm in /home/sched/short-term/progs/current/catalogs/freq.dat

Setup group: 2 Station: CEDUNA 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 17600 ft, High density tapes is: 13:58:06

1st LO= 4100.00 4100.00
Net SB= U U
Pol. = LCP LCP
BBC = 0 0
BBC SB= U U
IF = C C

The following frequency sets based on this setup were used.

Frequency Set: 3 Setup file default. No pcal detection.
LO sum= 4800.00 4816.00
BBC fr= 700.00 716.00
Bandwd= 16.000 16.000

Track assignments are:
track1= 0, 0
barrel=roll_off
 SOURCE LIST -- VSOP observation of J1733-13 at 5 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)

J1550+0527 15 48 06.931008 * 15 50 35.269241 15 50 36.857632
1548+056 05 36 11.23062 * 05 27 10.44815 05 27 11.64629
* J1550+05 /home/sched/short-term/progs/current/catalogs/sources.vlba
USNO - Ref Frame 1998-6, Eubanks June 1998

J1733-1304 17 30 13.535185 * 17 33 02.705782 17 33 04.446960
1730-130 -13 02 45.83980 *-13 04 49.54828 -13 04 46.66991
* J1733-13 /home/sched/short-term/progs/current/catalogs/sources.vlba
NRAO530 USNO - Ref Frame 1998-6, Eubanks June 1998

J1743-0350 17 41 20.616012 * 17 43 58.856136 17 44 00.523749
1741-038 -03 48 48.90001 *-03 50 04.61681 -03 50 02.02926
* J1743-03 /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)
J1550+05 147.9
J1733-13 166.8
J1743-03 157.8

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