The ad3 file extension is related to the ADHOC used to reduce the 3D data coming from Photon Counting or CCD observations.
There are 2 other file types using
the AD3 file extension!
.ad3 - ADPCM 3-bit compressed voice file
.ad3 - Demand Activated Manufacturing Architecure file
AD3 file extension - ADHOCw file
What is ad3 file? How to open ad3 files?
File type specification:
The ad3 file extension is related to ADHOC, software developed and used by the Interferometric Group of Marseille's Observatory to reduce the 3D data coming from Photon Counting or CCD observations.
It contains also general 2D modules useful for simple imagery. It is commonly used to reduce CIGALE, TIGER and PYTHEAS observations.