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Spacewatch was founded in 1980 by Tom Gehrels and Robert S. McMillan, and is currently led by astronomer Melissa Brucker at the University of Arizona. Spacewatch uses several telescopes on Kitt Peak for follow-up observations of near-Earth objects. [3] The Spacewatch Project uses three telescopes of apertures 0.9-m, 1.8-m, and 2.3-m.
A chart datum is the water level surface serving as origin of depths displayed on a nautical chart and for reporting and predicting tide heights. A chart datum is generally derived from some tidal phase, in which case it is also known as a tidal datum. [1] Common chart datums are lowest astronomical tide (LAT) [1] and mean lower low water (MLLW).
C/1992 J1 (Spacewatch) is a comet that was discovered 1 May 1992 by David Rabinowitz of the Spacewatch Project. This was the first comet to be discovered using an automated system. This was the first comet to be discovered using an automated system.
SARA Observatory 0.9m telescope [1] Variable stars, undergraduate training: Visitor Center telescopes: Three instruments used for nightly public programs: Spacewatch 1.8 m Telescope: 72 in mirror scavenged from the Mount Hopkins MMT: Spacewatch 0.9 m Telescope: Spacewatch: Super-LOTIS: Designed to look for visible signatures of GRBs: Auxiliary ...
Associated with this mask will be water level elevations with an accuracy of 10 cm (3.9 in) for water bodies whose non-vegetated surface area exceeds 1 km 2 (0.39 sq mi). The slope accuracy is 1.7 cm/km (1.1 in/mi) over a maximum 10 km (6.2 mi) of flow distance. [7]
Pages in category "Discoveries by the Spacewatch project" The following 200 pages are in this category, out of approximately 464 total. This list may not reflect recent changes .
Vertical datums in Europe. In geodesy, surveying, hydrography and navigation, vertical datum or altimetric datum is a reference coordinate surface used for vertical positions, such as the elevations of Earth-bound features (terrain, bathymetry, water level, and built structures) and altitudes of satellite orbits and in aviation.
125P/Spacewatch is a periodic Jupiter-family comet. It was discovered on September 8, 1991, by Tom Gehrels using the 0.91 m Spacewatch telescope at the Kitt Peak National Observatory . [ 4 ] It was the first comet discovered with the use of a CCD [ 5 ] and also the faintest comet upon discovery up to that point. [ 4 ]