Project

General

Profile

Cal-G1 and Cal-G2

Cal-G1 - Repeated, large-­‐dither observations of a given set of bright stars reproduces their relative sky positions with <25 mas median absolute error.
Cal-G2 - Residuals to astrometric map do not show systematic anomalies with respect to array position above 20 mas (e.g. glowing edges are at size expected, residuals are smooth across each CCD, relative CCD positions remain stable, etc.)

These are similar to Ast-R2 and Ast-R3, but are have more strict requirements.

Prerequisites

Same as Ast-R2 and Ast-R3

Procedure

Same as Ast-R2 and Ast-R3

Verdict

  1. Residuals < 25 mas
  2. No anomalies in residuals > 20 mas

Consequences