(2023-07-04, 05:30 PM)bigmasterdrago Wrote: Dennis, Amazing work. In your composite, it appears to be located at 19h 49m 15s, -2° 47' 56". Is that the position at the beginning of exposure (11:48:39UT)?
And are you near the center of Brisbane?
Reason I was asking is you seem to be a lucky guy to have caught it 25 arc minutes out of position. Horizons, SkyTools and several other apps do not agree with you position.
Hi BMD
Thanks for following up, it is good to have an independent review of these marginal objects.
When the NEO did not appear where it "should" have been, I began to sweep around the region and the 4th 120 sec exposure produced this stationary object, with the Mount set to Track on the NEO, so I assumed I had located it. I was a little surprised that both SkyTools and the Mount Control SW had positioned the OTA in the "wrong" position, as both had been quite accurate on previous objects.
I have attached the File Header from CCDStack which provides some detailed information about the 120 sec Frame.
The File Header provides the site Lat Long and writes that the exposure time was the time at the beginning of the 120 second exposure.
Hope that helps, let me know what your investigation uncovers.
Cheers
Dennis