SMART-1 [SEP] located on astronomical body
SMART-1
SMART-1 was a Swedish-designed European Space Agency satellite that orbited around the Moon. It was launched on 27 September 2003 at 23:14 UTC from the Guiana Space Centre in Kourou, French Guiana. "SMART-1" stands for Small Missions for Advanced Research in Technology-1. On 3 September 2006 (05:42 UTC), SMART-1 was deliberately crashed into the Moon's surface, ending its mission.
Spacecraft design.
SMART-1 was about one metre across (3.3 ft), and lightweight in comparison to other probes.
terms, the height of a fictional homogeneous atmosphere. The simplest version of this formula, which Smart held to be only accurate within 45° of the zenith, is:
where "R" is the refraction in radians, "n" is the index of refraction at the observer (which depends on the temperature and pressure), and "h" is the "apparent" altitude of the astronomical body.
An early simple approximation of this form, which directly incorporated the temperature and pressure at the observer,