RE: Time and downfits

["Robert Creager" <Robert@CarolineCreager.com>]

Hey Michael,

Source is available to anyone who asks (Borland C++ 5.02).  Tom 
is not currently running the 'latest' version, which doesn't take it's 
cue's from the file name any more.

The source is at:

http://www.tass-survey.org/tass/software/downfits/downfits.html

But that's not the latest.

Just so happens, I don't have the most recent code here at home 
(windows version), so I'll send it off to Michael R. tomorrow for 
replacement.

If you have the Borland compiler, I can send you the source for 
tom.cpp, which is the only file which changes (other than the 
README).

Rob

> Both Michael and I are working on reatime control programs. Michael's
> will run under Linux, mine will run under Windows.  Just as a check,
> my program says the Julian date right now (December 16, 2001, 23:11
> EST) is 2452260. How does that compare with other programs?
> 
> On another note.  Our new file format is supposed to be jjjjxxxc.fit
> where jjjj is julian date-2450000, xxx is a sequence number (000 -
> 999) and c is the site character.  Unfortunately downfits is looking
> for a filename of the old type where the second character is the
> filter.  I was testing my program tonight to try to create a dark file
> when I discovered this.  (It kept looking, and not finding, the
> plate_2 file.)  Is the source code available for downfits or can it be
> modified to use the new format?
> 
> Thanks,
> 
> Mike G.
> 
> -----Original Message-----
> From: owner-tass@listserv.wwa.com
> [mailto:owner-tass@listserv.wwa.com]On Behalf Of Tom Droege Sent:
> Sunday, December 16, 2001 10:52 PM To: Andrew Bennett;
> tass@listserv.wwa.com Subject: Re: Time
> 
> 
> OK, I am patiently waiting for someone else to write the real time
> control program.  I write the date of the evening I start observing in
> the log book and on the data disk.  So anyone who knows what they are
> doing should be able to straighten it out.  I have been setting the
> time to within a second.
> 
> Other than that, I have decided not to solve this problem.  I have
> absolute confidence that I will never get this right.  Well, never say
> never, by extreme luck I might get it right on occasion.
> 
> Tom Droege
> 
> 
> At 12:49 AM 12/17/01 +0000, you wrote:
> >Back in the mists of time you wrote
> > >2000-01-01 at 12:00 should be 2451545
> >I've been fighting my way through WCSSub28
> >dateutil.c and I find
> >
> >Modified Julian Date = Julian Date - 2400000.5
> >
> >Taking Julian Epoch 2000.0 to mean 2000Jan1 at
> >00:00UT (not sure if this is true!) I then get
> >2001-01-01 at 12:00UT = JD 2451545.5 = MJD 51545.0
> 
> 
> 
> 
> 
> 
>