The goal of the narrow angle Astrometric observation PrEparation Software (APES) is to assist the observer during the preparation of Narrow angle astrometric observations using PRIMA and the Auxiliary Telescopes (ATs). It allows him/her to simulate the performance of the instrument for a given set of targets and reference stars. The exposure time calculator for PRIMA is integrated into APES. The output is a parameter file (PAF), containing all information to optimally set-up PRIMA. This file has to be attached in the Observation Blocks (OBs) created with P2PP.
The The Astrometric observation PrEparation Software is a Java application that can be downloaded/launched from this web-site.
For further information, see the APES Users' Manual.
Current Version: APES-v0.98
Note about this release
APES will be commissioned at Paranal in July 2011.
Important note: If you runned previous version of APES on your computer, please erase the .apes.preferences file in your home directory to be able to run correctly the latest version of APES