2MASS observations of the solar system

Computer Science – Databases

Scientific paper

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Solar System: Sky Surveys, Positions

Scientific paper

The Two-Micron All Sky Survey is complete. As part of the final processing of 24.5 terabytes of observations, extracted 2MASS sources were compared with the predicted positions of more than 62000 asteroids and comets, spanning the detection limits of the survey. Comparisons with the predicted positions of the nine planets were also included in this process. Planetary satellites were identified independently. Four planets and seventeen planetary satellites were detected, several saturated. The positions of more than 250 comets were scanned, but automated point source correlations require visual inspection for confirmation due to the extended nature of many comet observations and their deviation from predicted positions due to nongravitational forces. Detections of more than 12000 asteroids were made in all three bands, sampling all dynamical regions of the asteroid belt from Near-Earth asteroids to Trojans, and providing a rich resource for their study, particularly in combination with other asteroid databases.

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