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Re: Frame to frame differences


Here is another set of data (reduced with sps2x vs
sextractor), broken in to V and I band
files, along with a gnuplot file to plot them out.

If you have gnuplot, execute <gnuplot
sequential.dem>.  It'll plot out 4 graphs for you,
with titles and such.  You have to hit return between
each graph.  Definate trending of data through out the
night.

Later,
Rob

PS.  If the attachments don't come though, I'll send
them again tonight...


---- Tom Droege <tdroege@veriomail.com> wrote:
> Rob and all,
> 
> I plotted the data below.  The V data is
consistently less than the I 
> data.  This is strange since both telescopes are on
the same drive.  I just 
> plotted the last column which I believe to be E-W
axis.  The results look 
> pretty trend less to me, though there is the
possibility that the drive 
> rate is trailing off near the end of the V data. 
This is the kind of 
> effect I expect, the rate changes at the limit.  But
this is too little 
> data to draw much of a conclusion, I think.
> 
> In any case, V and I data should have the same mean
rate.  They do not.
> 
> Tom Droege
> 
> 
> At 06:25 PM 10/16/01 -0600, you wrote:
> 
> >Ok,
> >
> >Here's some data.  Note that this is produced from
an un-qualified pipeline,
> >but at least the results look reasonable :-)  This
data was gathered by
> >using Michael's match program (linear match), a
Perl script, and the output
> >from one stage of my pipeline.  The first number is
the rotation between the
> >frames listed (atan c/b) converted to degrees.  The
second is the X offset
> >(a), and the third is the Y offset (d).  There are
some frames missing as I
> >didn't get good catalog matches from them.  If I
re-run the pipeline using
> >raw images (vs dark/flat corrected images), I will
get more catalog matched
> >images, but I think this provides some reasonable
data (doesn't it?).
> >
> >I'd be happy to run again on raw images if anyone
would like.  Or do some
> >graphing with the data.  Gotta run right now
though.
> >
> >Matching hira2157630.fits to hira2157632.fits: Bad
match
> >Matching hira2157632.fits to hira2157634.fits: 
0.0025   -6.03    0.30
> >Matching hira2157638.fits to hira2157639.fits: 
0.0029   -5.85    0.33
> >Matching hira2157639.fits to hira2157641.fits: Bad
match
> >Matching hira2157641.fits to hira2157643.fits: Bad
match
> >Matching hira2157646.fits to hira2157648.fits: Bad
match
> >Matching hira2157652.fits to hira2157653.fits: Bad
match
> >Matching hira2157653.fits to hira2157655.fits: Bad
match
> >Matching hira2157655.fits to hira2157657.fits: 
0.0041   -5.62    0.40
> >Matching hira2157657.fits to hira2157659.fits: 
0.0037   -5.48    0.48
> >Matching hira2157659.fits to hira2157661.fits: 
0.0040   -5.72    0.44
> >Matching hira2157661.fits to hira2157662.fits: 
0.0042   -5.60    0.37
> >Matching hira2157666.fits to hira2157668.fits: 
0.0055   -5.54    0.30
> >Matching hira2157668.fits to hira2157669.fits: 
0.0059   -5.49    0.39
> >Matching hira2157669.fits to hira2157671.fits: 
0.0050   -5.42    0.41
> >Matching hira2157684.fits to hira2157685.fits: 
0.0076   -5.29    0.21
> >
> >Matching hvra2157623.fits to hvra2157625.fits: Bad
match
> >Matching hvra2157625.fits to hvra2157627.fits: 
0.0016   -5.92    0.15
> >Matching hvra2157627.fits to hvra2157629.fits: 
0.0027   -6.00    0.18
> >Matching hvra2157629.fits to hvra2157630.fits: Bad
match
> >Matching hvra2157630.fits to hvra2157632.fits: 
0.0026   -5.87    0.19
> >Matching hvra2157632.fits to hvra2157634.fits: 
0.0028   -5.91    0.11
> >Matching hvra2157638.fits to hvra2157639.fits: 
0.0032   -5.81    0.09
> >Matching hvra2157639.fits to hvra2157641.fits: 
0.0039   -5.83    0.15
> >Matching hvra2157641.fits to hvra2157643.fits: Bad
match
> >Matching hvra2157643.fits to hvra2157645.fits: Bad
match
> >Matching hvra2157645.fits to hvra2157646.fits: Bad
match
> >Matching hvra2157646.fits to hvra2157648.fits: 
0.0040   -5.80    0.20
> >Matching hvra2157652.fits to hvra2157653.fits: 
0.0047   -5.75    0.26
> >Matching hvra2157653.fits to hvra2157655.fits: 
0.0051   -5.65    0.18
> >Matching hvra2157655.fits to hvra2157657.fits: 
0.0056   -5.69    0.12
> >Matching hvra2157657.fits to hvra2157659.fits: 
0.0054   -5.63    0.30
> >Matching hvra2157659.fits to hvra2157661.fits: 
0.0053   -5.63    0.13
> >Matching hvra2157661.fits to hvra2157662.fits: 
0.0058   -5.58    0.17
> >Matching hvra2157666.fits to hvra2157668.fits: Bad
match
> >Matching hvra2157668.fits to hvra2157669.fits: 
0.0063   -5.45    0.15
> >Matching hvra2157669.fits to hvra2157671.fits: 
0.0063   -5.42    0.33
> >Matching hvra2157671.fits to hvra2157673.fits: 
0.0057   -5.41    0.08
> >Matching hvra2157673.fits to hvra2157675.fits: 
0.0073   -5.38    0.13
> >Matching hvra2157675.fits to hvra2157677.fits: 
0.0061   -5.38    0.15
> >Matching hvra2157680.fits to hvra2157682.fits: 
0.0064   -5.25    0.16
> >Matching hvra2157682.fits to hvra2157684.fits: Bad
match
> >Matching hvra2157684.fits to hvra2157685.fits: 
0.0072   -5.27    0.10
> >Matching hvra2157685.fits to hvra2157687.fits: Bad
match
> >Matching hvra2157687.fits to hvra2157689.fits: 
0.0079   -5.25    0.21
> >Matching hvra2157689.fits to hvra2157691.fits: 
0.0075   -5.18    0.01
> >Matching hvra2157694.fits to hvra2157696.fits: 
0.0077   -5.07   -0.05
> >
> >
> >
> >Robert Creager
> >Senior Software Engineer
> >Client Server Library
> >303.673.2365 V
> >303.661.5379 F
> >888.912.4458 P
> >StorageTek
> >INFORMATION made POWERFUL
> >
> 
> 
> 
>
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