## Parameter Files

The values for these parameters used in real time are stored in several parameter files, located under directory INTER_BASE:. To follow the logical dependence of the parameters upon antenna and station, several files exist :

- GENERAL.ANk
  where k is an antenna number. These files contain the parameters which only depends on the antenna: radio and optical collimations COH and COV, NPE, AZEC, AZES, ELEC, ELES, and also a default value for IAZ. They also contain the homology elevation bending, HEL, the subreflector parameters: HTR0 and HTR1 for translation, HVT0 and HVT1 for tilt, HFO0 and HFO1 for focus; and two beam-switch parameters (sign and beam separation).
- Sij.ANk
  where Sij is a station name (for example W00), and k an antenna number. These files contains the Antenna-Station dependent parameters, for pointing IAZ, MVE, and MVN, and for interferometry, the Delay, and the position X,Y,Z.

The Sij.ANk should never be editted, but should only be changed using the CONFIGURE mode of OBS. The GENERAL.ANk file should be editted if a major change occur.