A Method for Measuring Distortion in Wide-Field Imaging with High Order Polynomials
Abstract
In analyzing wide-field images, for example those from the Hyper Suprime-Cam on the Subaru telescope, determining World Coordinate System (WCS) information (for example position and angle) of each CCD is very important. In this paper, we show a method for determining the distortion with high-order polynomials using the TAN-SIP convention, utilizing all of the CCDs in a field of view (FOV) at once.
- Publication:
-
Astronomical Data Analysis Software and Systems XX
- Pub Date:
- July 2011
- Bibcode:
- 2011ASPC..442..537Y