ObsReduce

ObsReduce is an MS Windows program that reduces observations of satellites relative to the background stars into their precise coordinates.

Observers identify their reference stars in a simulated binocular or telescope field of view, select them using the mouse, enter the observed geometric and positional data, and the program automatically produces a formatted observation report.

ObsReduce supports all three reporting formats in common use: IOD, UK and RDE (Russell Eberst's abbreviated form of the UK format.) All R.A. and Dec formats and epochs are supported, as are visual magnitude and optical period reporting.

ObsReduce supports three traditional observational geometries: satellite in-line with reference stars, satellite forming right-angled triangle with reference stars, and appulses (satellite passing near a single star).