Hubble Space Telescope Astrometry of Trans-Neptunian Objects

Details Hubble Space Telescope Astrometry of Trans-Neptunian Objects Hubble Space Telescope Astrometry of Trans-Neptunian Objects

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apjs..189..336b&link_type=abstract

The Astrophysical Journal Supplement, Volume 189, Issue 2, pp. 336-340 (2010).

Astronomy and Astrophysics

Astronomy

Astrometry, Kuiper Belt: General

Scientific paper

We present 1428 individual astrometric measurements of 256 trans-Neptunian objects made with Hubble Space Telescope (HST). The observations were collected over three years with two instruments, the Wide Field Planetary Camera 2 and the Advanced Camera for Surveys High Resolution Camera, as part of four HST programs. We briefly describe the data and our analysis procedures. The submission of these measurements to the Minor Planet Center increased the individual arc length of objects by 1.83 days to 8.11 years. Of the 256 total objects, 62 (24.2%) had arc length increases of >=3 years. The arc length for 60 objects (23.4%) was increased by a factor of 2 or greater.

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