NTT Pointing Model Evolution

The pointing model of the NTT is performed by fitting the pointing error of ~60 stars over the whole visible sky using the VLT implementation of TPOINT. The resulting pointing accuracy is typically better than 1". Fig. 1 shows the evolution of the model, and Fig. 2 a typical residual plot.

This page is update automatically (last update: Fri Oct 1 14:37:59 CLT 2004).

Nasmyth A:
Nasmyth B:
Figure 1: Evolution of the Pointing Model


Figure 1: Residuals of the NTT Pointing Model (Nasmyth A, 2001-12-06). The RMS was 0.8"