Flowdown of the TMT astrometry error budget(s) to the IRIS design
Flowdown of the TMT astrometry error budget(s) to the IRIS design
TMT has defined the accuracy to be achieved for both absolute and differential astrometry in its top-level requirements documents. Because of the complexities of different types of astrometric observations, these requirements cannot be used to specify system design parameters directly. The TMT astrometry working group therefore developed detailed astrometry error …