ObsReduce 1.0 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus.
ObsReduce lies within Education Tools, more precisely Science Tools. This free program is an intellectual property of Ted Molczan. The following versions: 1.3 and 1.0 are the most frequently downloaded ones by the program users. ObsReduce.exe is the most frequent filename for this program's installer.
From the developer:
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.
You may want to check out more software, such as Maxima and Minima, DAC Express or IUCLID5, which might be similar to ObsReduce.