Likelihood centroiding of CCD point spread functions

Details Likelihood centroiding of CCD point spread functions Likelihood centroiding of CCD point spread functions

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999dda....31.0503j&link_type=abstract

American Astronomical Society, DDA meeting #31, #05.03

Astronomy and Astrophysics

Astronomy

Scientific paper

Traditionally, least squares has been used for fitting point spread functions (PSFs) to observed CCD data. However, and particularly at low signal levels, the ability of CCDs to count individual photons and the CCD readout noise conspire to produce a likelihood function that may differ significantly from the standard least-squares likelihood. This suggests that modelling the likelihood function directly may result in improved centroiding. In this paper I report on some preliminary investigations relevant to the FAME project on likelihood fitting of PSFs.

Affiliated with

Also associated with

No associations

Rating

Likelihood centroiding of CCD point spread functions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Likelihood centroiding of CCD point spread functions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Likelihood centroiding of CCD point spread functions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1554232