As a total newbie, I attempted to gather some astrometry data from these exposures. Basically, I used CCDSoft for positional information and calibrated MaximDL for magnitude information. Here is the data I derived:
Date: 8/18/2002 UTC
| Frame | Time | RA | DEC | Magnitude |
|---|---|---|---|---|
| 2459 | 05:23:14 | n/a | n/a | 9.56 |
| 2460 | 05:23:48 | n/a | n/a | 9.60 |
| 2461 | 05:24:23 | n/a | n/a | 9.54 |
| 2462 | 05:25:02 | 17h 33m 59.78s | 39° 40' 18.07" | n/a |
| 2463 | 05:25:33 | 17h 34m 16.55s | 39° 39' 15.60" | n/a |
Positional information was obtained by measuring the center of the trailed asteroid image and the time was adjusted by adding 10 sec. (1/2 exposure time) to the FITS header recorded time. Magnitude information was obtained by calibrating on known stars in the field of frame 2462 and then measuring the intensity of the tracked centroid of the asteroid. Again, FITS header time was incremented by 10 sec.
This object was moving fast! Based on the trailed length during sidereal tracking in frames 2462 and 2463, I measured approximately 7 arc-sec./sec. movement.