Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
IDL procedures for barycentric timing corrections?
Hello, Does anyone have (or know of) any IDL procedures that will calculate barycentric timing corrections? I have some X-ray satellite data in the form of "photon lists", i.e., each photon that arrives on the detector is counted, and given x & y position tags, an arrival time tag, and a PHA energy channel flag. I need to correct the arrival times for the different path lengths (due to the motion of the satellite around the Earth, and of the Earth around the Solar System barycenter). I really would rather not have to reinvent this particular wheel, if I can avoid it! I am posting this from the account of a friend. Please reply to reichert@heasrc.gsfc.nasa.gov (Internet) or heasrc::reichert (SPAN). Thanks, Gail Reichert