Question

Hello! I'm trying to use "ResCor" to calculate VTEC. The problem is it returns all zero values in all the calculations which require ephemeris - VP, VR, SX, etc. I tried to run it with rinex nav files and with igs precise sp3 files - both don't work.

The other problem is that program crushes with "division by zero error" when i use obs file which is missing a few epochs (it didn't crush when i put time limits where no epochs are missing).

I'm using GPSTk v1.4 under WinXP^? SP2.

Thank you in advance!

-- VitomirC - 13 Jan 2008

Answer

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These calculations require an input receiver position as well as ephemeris data. Use one of the options --Rx... as described on the syntax page (run ResCor^? without options to see the syntax page).

-- BrianTolman - 14 Jan 2008