Hi David,
In your earlier post you provided this date/time and coordinates :-
Quote:
["DATE-OBS", "\'2021-04-08T12:40:36\'", "YYYY-MM-DDThh:mm:ss observation start, UT"],
["OBJECT", "\'IC3475 \'", ""], // row 30
["OBJCTRA", "\'12 32 42.000\'", "Right ascension (hours) (compatibility)"],
["OBJCTDEC", "\'+12 46 36.00\'", "Declination (deg) (compatibility)"],
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But in your screenshot of the MPC form, you entered the day/fraction day
as 08.09 rather than 08.53 and your RA/Dec coordinates are very different
between the two
Are you sure about your time? A fractional day of 0.09 is 02:09 UT
but your target acquisition time was 12:40:36 UT which is a fractional day of 0.53.
Now the coordinates of IC 3472 are 12:32:40.985 +12:46:13.94
which are very close to the coordinates you posted so I gather they
were for the original target, IC 3472, rather than the unknown moving
body.
So I gather we should be using the data that was in the screenshot
of the MPC page.