Efficient Methods For Object Searching In LSST And Pan-STARRS "Deep Stacks"

Details Efficient Methods For Object Searching In LSST And Pan-STARRS "Deep Stacks" Efficient Methods For Object Searching In LSST And Pan-STARRS "Deep Stacks"

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.5206m&link_type=abstract

American Astronomical Society, DPS meeting #40, #52.06; Bulletin of the American Astronomical Society, Vol. 40, p.493

Statistics

Computation

Scientific paper

The Moving Object Pipeline System (MOPS) is the solar system object search and discovery system designed for the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) and the Large Synoptic Survey Telescope (LSST). While the observational schedules of the two telescopes are designed with solar system object search in mind, other science objectives result in some schedules which prove challenging for existing MOPS algorithms. In particular, we focus on the "deep stack" schedules in which a single area of the sky is imaged many times in rapid succession. These "deep stack" collections are a poor match for existing algorithms used in MOPS, resulting in long computation times and unacceptably large memory usage. We present and compare two new methods for efficiently extracting useful data from detections in "deep stack" images and integrating it into the existing MOPS system and we report our experiences with each. One is a modified intra-nightly linking algorithm which uses a partial Hough transform method for quickly identifying multiple detections which follow similar linear motion using data local to each detection. The other is a new post-processing step for intra-nightly linking which uses a KD-Tree of physically plausible pairs of detections to identify pairs with similar vectors of linear motion. Both methods have greatly reduced memory requirements compared to the existing methods, and have been successful in simulations of MOPS using both Pan-STARRS and LSST parameters.

Affiliated with

Also associated with

No associations

Rating

Efficient Methods For Object Searching In LSST And Pan-STARRS "Deep Stacks" 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 Efficient Methods For Object Searching In LSST And Pan-STARRS "Deep Stacks", we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Efficient Methods For Object Searching In LSST And Pan-STARRS "Deep Stacks" will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1439369