Keywords: point

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## 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.

Next: The POINT program Up: Basic pointing parameters Previous: Parameter List Contents Index