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RE: New FITS Header
I am using the fits routine 'fits_write_date( )'...
Robert Creager
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> -----Original Message-----
> From: Tom Droege [mailto:tdroege@veriomail.com]
> Sent: Monday, April 09, 2001 8:29 PM
> To: Shawn (Rolling Hills Obs); Creager, Robert S;
> tass@listserv.wwa.com
> Subject: Re: New FITS Header
>
>
> Rob,
>
> Thanks Shawn, this is exactly what I am looking for, problems
> in the format.
>
> Looks like Shawn has discovered a problem in DATE and
> DATE-OBS. I get
> DATE-OBS time part directly from TIME$. I don't see how I
> could miss an
> hour. What do you do?
>
> Tom Droege
>
> At 08:55 PM 4/9/01 -0400, you wrote:
> >Ok, how about the DATE vs DATE-OBS keywords? Was the FITS
> file really
> >created an hour before the exposure? Maybe this would speed up the
> >downloads - create all the files you think you might need
> for the night ;)
> >
> >Shawn
> >
> >
> >----- Original Message -----
> >From: "Tom Droege" <tdroege@veriomail.com>
> >To: "Tom Droege" <tdroege@veriomail.com>; <tass@listserv.wwa.com>
> >Sent: Monday, April 09, 2001 6:59 PM
> >Subject: Re: New FITS Header
> >
> >
> > > OK, I have found one error, let's see if anyone else can
> find it or
> >others.
> > >
> > > Tom Droege
> > >
> > > At 05:43 PM 4/9/01 -0500, you wrote:
> > > >Fits Fans, here is the latest version of the fits header
> that I am
> >writing
> > > >on the data I take tonight. Please, fits experts, read
> this carefully.
> >I
> > > >want to get to the point where I can take "keeper" data
> with TOM. It
> >will
> > > >not be worth processing (I suspect) if the header is not
> in near final
> >form.
> > > >
> > > >Tom Droege
> > > >
> > > >SIMPLE = T / file does conform to
> FITS standard
> > > >BITPIX = 16 / number of bits per data pixel
> > > >NAXIS = 2 / number of data axes
> > > >NAXIS1 = 2043 / length of data axis 1
> > > >NAXIS2 = 2037 / length of data axis 2
> > > >EXTEND = T / FITS dataset may
> contain extensions
> > > >COMMENT FITS (Flexible Image Transport System) format
> defined in
> > > >Astronomy and
> > > >COMMENT Astrophysics Supplement Series v44/p363,
> v44/p371, v73/p359,
> > > >v73/p365.
> > > >COMMENT Contact the NASA Science Office of Standards
> and Technology for
> >the
> > > >COMMENT FITS Definition document #100 and other FITS
> information.
> > > >DATE = '2001-04-09T21:21:23' / file creation date
> (YYYY-MM-DDThh:mm:ss
> >UTC)
> > > >FILTER = 'V '
> > > >LATITUDE= 41.8271 / Site H latitude, degrees north
> > > >LONGITUD= -88.3125 / Site H longitude, degrees east
> > > >RALIM = -9.5 / RA Limit Switch
> Position Degrees East
> > > >DECLIM = 0. / Declination limit
> switch Degrees North
> > > >DATASEC = '[ 17:2064, 1:2048]' / Place keeper for Active
> area of the
> >detector
> > > >BIASSEC = '[ 10: 15, 1:2048]' / Place keeper for
> Under-Over scan region
> > > >TIMESYS = 'UT ' / time system for exposure start
> > > >EPOCH = 2001. / Place keeper for Epoch
> of coordinates
> > > >EQUINOX = 2000. / Place keeper for
> Equinox of coordinates
> > > >SCALE = 7.4 / Arc seconds per pixel
> > > >TIMEBASE= 'Manual GPS' / By hand transfer to PC clock
> > > >COMMENT Additions to Constant File
> > > >RA = '4:31:8.97' / RA of Field Center
> > > >CRVAL1 = 4.52471659378365 / RA of Field Center
> > > >RATIME = '1.976563' / Seconds since turning
> on RA drive
> > > >IMAGETYP= 'object ' / object frame
> > > >WATERTMP= '26.92675' / Cooling water temperature
> > > >VCOTEMP = '32.45043' / VCO Temperature
> > > >DEC = '0:00:00 ' / Place Keeper for DEC of
> field center
> > > >CRVAL2 = '0 ' / Place Keeper for DEC of
> field center
> > > >UT = '22:21:18' / Universal time of #0
> exposure (V) start
> > > >COMMENT This is the #0 Camera File
> > > >DATE-OBS= '2001-04-09T22:21:18' / UT date-time of exposure start
> > > >UTSTART = '22:21:18' / Universal time of #0
> exposure (V) start
> > > >EXPTIME = 99.85938 / Open Time for Camera 0 usually V
> > > >GAIN = 2.5 / Place Keeper for Gain
> in electrons per
> >adu
> > > >RDNOISE = 25. / Place Keeper for Read
> Noise in electrons
> > > >CDTEMP = '4.77099 ' / CCD Temperature Camera 0
> > > >END
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