Re: Mark IV data off by one day

[Thomas Droege <tdroege2@earthlink.net>]

Gary,

A good idea.  It does not have to move much.  So a search for an asteroid
in the data would tell since our astrometry is usually good to 1 arc
second.  An astroid that moved a few arc seconds a day would tell the tale.

Anyone want to take this on?  What we need are mag 9-11 asteroida that move
say 10 or more arc seconds a day somewhere between 160 and 270 degrees in
RA and 18 to 50 degrees in Dec.  The day is 2453109 If you get the position
of asteroids at the time that they cross the zenith they will be pretty
close in time to when I measure them.  I will need a few, because the way I
was taking data in April only covered about half the sky.  

Tom Droege


> [Original Message]
> From: Gary W. Billings <obs681@telusplanet.net>
> To: <tass@listserv.wwa.com>
> Date: 6/10/2004 9:03:42 PM
> Subject: Re: Mark IV data off by one day
>
> If there are any frames from the day in question that captured a
> sufficiently bright moving asteroid...  that could move from "absence of
> evidence" to "evidence of absence" of a day error...
>
> g.
>
> ----- Original Message -----
> From: "Thomas Droege" <tdroege2@earthlink.net>
> To: "Man, Stupendous" <richmond@stupendous.cis.rit.edu>;
> <tass@listserv.wwa.com>
> Cc: <mwrsps@rit.edu>
> Sent: Thursday, June 10, 2004 5:24 PM
> Subject: RE: Mark IV data off by one day
>
>
> > Here is an attempt to look another way at the possibility that the Mark
IV
> > data was off one day on 2543109.
>
>