Software simulations of the detection of rapidly moving asteroids by a charge-coupled device

Details Software simulations of the detection of rapidly moving asteroids by a charge-coupled device Software simulations of the detection of rapidly moving asteroids by a charge-coupled device

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982spie..331..104m&link_type=abstract

IN: Instrumentation in astronomy IV; Proceedings of the Fourth Conference, Tucson, AZ, March 8-10, 1982 (A83-31976 14-35). Belli

Astronomy and Astrophysics

Astronomy

5

Asteroids, Charge Coupled Devices, Computerized Simulation, Imaging Techniques, Radiation Detectors, Astrometry, Atmospheric Effects, Exposure, Image Filters, Image Processing, Image Resolution, Magnitude, Photosensitivity, Point Spread Functions, Quantum Efficiency, Signal To Noise Ratios

Scientific paper

A rendezvous of an unmanned probe to an earth-approaching asteroid has been given a high priority in the planning of interplanetary missions for the 1990s. Even without a space mission, much could be learned about the history of asteroids and comet nuclei if more information were available concerning asteroids with orbits which cross or approach the orbit of earth. It is estimated that the total number of earth-crossers accessible to ground-based survey telescopes should be approximately 1000. However, in connection with the small size and rapid angular motion expected of many of these objects an average of only one object is discovered per year. Attention is given to the development of the software necessary to distinguish such rapidly moving asteroids from stars and noise in continuously scanned CCD exposures of the night sky. Model and input parameters are considered along with detector sensitivity, aspects of minimum detectable displacement, and the point-spread function of the CCD.

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