Re: new additions to TASS home page

[Nicholas Beser <beser@aplcomm.jhuapl.edu>]

Tom Droege wrote:

> Michael,
>
> Very nice!!  There is even more data than you indicated.  Going from
> 0-1 RA and -.2 to +.7 in Decl.  gives a nice diagonal track.
>
> >  I urge people to try this out: make a V-band chart of
> >(0.0 < RA < 0.5) and (0.0 < Dec < 0.5),
> >and look at chart: there's clearly an object which moves through the
> >field!   It turns out to take only a few minutes to move all the
> >way across a 3-degree swath, so I suspect that it's a satellite
> >of some kind.
>
> Huh!  Does this mean that Mike's program looked at the track and found
> many points???   Is this just one data field, or the combination of a lot of
> measurements from different locations??   How can you tell that it only
> took a few minutes to move all the way across the 3 degree swath???
> Seeems like all the measurements have one time stamp???  I don't
> understand.
>
> OK, I looked (by hand) at a couple of points on the track and they both
> came from  G1A_0745.  To hard to track them all down when a computer
> can do it.
>
> Hmmm!  If a track is turned into many points is this good or bad?
>
> Tom

I think if you are seeing a track it is likely an aircraft. (We see several in
one evening).
I examined the original file (31t0745.621), and it shows three parallel lines,
typical of a aircraft.

We talked about this when we discussed the data screening. (I plotted out the
output from star which included many stars generated from an aircraft trail). I
don't recall if we decided if it was good or bad.

Nick