The GRAVITY/VLTI acquisition camera software

• Type: Article in International Conference Proceedings Book
• Date: 2014

Authors

Anugu, N (Author) Other; P. J. V. Garcia (Author) FEUP; Wieprecht, E (Author) Other; Amorim, A (Author) Other; Burtscher, L (Author) Other; Ott, T (Author) Other; Gordo, P (Author) Other; Eisenhauer, F (Author) Other; Perrin, G (Author) Other; Brandner, W (Author) Other; Straubmeier, C (Author) Other; Perraut, K (Author) Other

Conference proceedings International

Title: OPTICAL AND INFRARED INTERFEROMETRY IV

Conference on Optical and Infrared Interferometry IV

Montreal, CANADA, JUN 23-27, 2014

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 4 Citations

Other information

Authenticus ID: P-00G-1BZ

DOI: 10.1117/12.2055831

Abstract (EN): The acquisition camera for the GRAVITY/VLTI instrument implements four functions: a) field imager: science field imaging, tip-tilt; b) pupil tracker: telescope pupil lateral and longitudinal positions; c) pupil imager: telescope pupil imaging and d) aberration sensor: The VLTI beam higher order aberrations measurement. We present the dedicated algorithms that simulate the GRAVITY acquisition camera detector measurements considering the realistic imaging conditions, complemented by the pipeline used to extract the data. The data reduction procedure was tested with real aberrations at the VLTI lab and reconstructed back accurately. The acquisition camera software undertakes the measurements simultaneously for all four AT/UTs in 1 s. The measured parameters are updated in the instrument online database. The data reduction software uses the ESO Common Library for Image Processing (CLIP), integrated in to the ESO VLT software environment.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13