| Students in Advanced Research for Sky Surveillance |
09 NOV 97 |
5 pages |
| Authors:
Tom Gehrels; ARIZONA UNIV TUCSON LUNAR AND PLANETARY LAB
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 | Spacewatch program discovers small bodies (asteroids and comets) in the solar system and analyzes their distributions with orbital parameters and absolute magnitude. Scanning of the night sky is conducted 18-20 nights per month with tbe 0.9-m Spacewatch Telescope on Kitt Peak. About 1200. to 2000 sqare degrees of sky are searched each year to a V magnitude level of 21.3. Spacewatch discoveries support studies of the evolution of the Centaur, ... |
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| New Research in Sky Surveillance: Interpretation of Low-Luminosity Objects |
07 NOV 97 |
8 pages |
| Authors:
Tom Gehrels; ARIZONA UNIV TUCSON LUNAR AND PLANETARY LAB
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| The Spacewatch program discovers small bodies (asteroids and comets) in the solar system and analyzes their distributions with orbital parameters and absolute magnitude. Scanning of the night sky is conducted with a charged- coupled device (CCD) imaging detector. About 1200 to 2000 square degrees of sky are searched each year to a V magnitude limit of 21.5 Spacewatch discoveries support studies of the Centaur, Trojan, Main-Belt. and Earth-approaching asteroid populations. ... |
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| Advanced Research in Sky Surveillance: A Search for Low-Luminosity Objects |
OCT 94 |
12 pages |
| Authors:
Tom Gehrels; ARIZONA UNIV TUCSON LUNAR AND PLANETARY LAB
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| Regarding astrophysical research, an increasing number of moving objects in the solar system is formed per year, positions are distributed electronically to others. Our own usage of the discoveries is to study magnitude-frequency relations for a variety of populations in the solar system, such as comets, Centaurs, main-belt asteroids, and objects that can come into the Earth's vicinity. For the near-Earth objects, the discovery rate now is about 25 percent ... |
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| Advanced Research in Sky Surveillance: A Search for Low-Luminosity Objects |
31 OCT 93 |
7 pages |
| Authors:
Tom Gehrels; ARIZONA UNIV TUCSON LUNAR AND PLANETARY LAB
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| The Spacewatch Telescope on Kitt Peak is used for the ongoing program of surveillance for small moving objects in the solar system. At least 20,000 main-belt asteroids are found per year; their positions are e-mailed to others. For the near-Earth objects, the discovery rate now is about 30 per year. These are followed up as much as possible in order to obtain the best possible orbits. Spacewatch participates in the ... |
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| Advanced Research In Sky Surveillance: A Search For Low-luminosity Objects |
31 OCT 92 |
4 pages |
| Authors:
Tom Gehrels; ARIZONA UNIV TUCSON LUNAR AND PLANETARY LAB
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| The new CCD was installed. Improvements were made in the software and in the operation and the system is working well. All through the year the telescope has been assigned for eighteen nights per month. Large numbers of main-belt asteroids have been found. It has been found that objects smaller than 2 meters occur two orders of magnitude more frequently that expected from extrapolation of the size-frequency relation of the ... |
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| A Search for Low-Luminosity Objects |
31 OCT 91 |
6 pages |
| Authors:
Tom Gehrels; ARIZONA UNIV TUCSON LUNAR AND PLANETARY LAB
|
| During this grant, the 2048x2O48 Tektronix CCD detector was installed and put into operation on the Spacewatch Telescope at Kitt Peak in Arizona. The CCD was installed in its dewar during the fall of 1988 and tested in January 1989. Scanning for near-Earth asteroids was started in the visual mode awaiting the arrival of the computer system. The first near-Earth asteroid was discovered in the fall of 1989. The Solbourne-Sun ... |
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