Subject: Re: High Angle Range WU, what is the highest acceptable design value (PR - telescope)?
From: pbackus@seti.org
Date: 08/03/2005, 18:46
Newsgroups: alt.sci.seti,sci.astro.seti

Project Phoenix typically observed from 5PM to 8 AM AST.  I checked the
log for 20 Nov 2003 and we indeed went off the telescope at 8:00 AM
AST, 1200 UT.  The Electronics Department was scheduled to perform
maintenance from 8AM until about 1:30 PM (1730UT).  So that would cover
the time in question, 1350 UT.

Peter Backus
Project Phoenix

PS:  You can check the Arecibo schedule on the web at:
http://www.naic.edu/vscience/schedule/scedfra2.htm


Alfred A. Aburto Jr. wrote:
Max Power wrote:
High Angle Range WU, what is the highest acceptable design value
(PR -
telescope)?

David Woolley covered this ...


Why is this not indiacted in the SETI client itself?
Why is the work unit not tagged as [meta-data] invalid for the PR
telescope,
if such high Angle Ranges are reached?

Good question ...
I don't know the answer ...
(I'm not helping much so far ...)



Anyone ever see a wu with such an angle range...?

Aha! Yes, I've recieved a number of these WU with angle range of
128.678
just as you have indicated in the table below.

They are all from 20 Nov 2003 at 13:50:05UTC just as you indicate in
the
table below. This is the time frame that Project Phoenix was at
Arecibo
doing their data collection. Perhaps Peter Backus can check the logs
to
see what was going on at this time?

Even though the End RA is wrong (should be 37.066 - 24.000 = 13.066
hours), I think the angle range is right. That is, I don't think the
End
RA being wrong caused the angle range to be calculated in error.
Al

===============================
Name    20no03aa.23948.19874.742326.232
Recording Time  11/20/03 1:50 PM
Base Frequency  1,419,765,625
Start RA        22.818  End RA  37.066
Start DEC       24.85   End DEC 18.81
Angle Range     128.678
Receiver        ao1420
Best Gaussian   score   0.0     power   0.0   fit     0.0
Best Spike      score   0.0     power   0.0
Best Pulse      score   0.0     power   0.0
Best Triplet    score   0.0     power   0.0
Tape Version    1.4
===============================