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Non-linear Sun sensor used by the TET-1 German microsatellite.. A Sun sensor is a navigational instrument used by spacecraft to detect the position of the Sun. [1] [2] Sun sensors are used for attitude control, solar array pointing, gyro updating, and fail-safe recovery.
TET-1 (German: Technologieerprobungsträger 1, Technology Experiment Carrier) was a microsatellite operated by the German Space Operations Center of the German Aerospace Center. It was the centre of the OOV (On Orbit Verification) Program, initiated to offer on-orbit verification possibilities to the German industrial and scientific aerospace ...
A horizon sensor is an optical instrument that detects light from the 'limb' of Earth's atmosphere, i.e., at the horizon. Thermal infrared sensing is often used, which senses the comparative warmth of the atmosphere, compared to the much colder cosmic background. This sensor provides orientation with respect to Earth about two orthogonal axes.
Addison D. Cole founded the company in 1957. [1] Adcole's core clients come from the aerospace and automotive industries. The company is a subcontractor for the NASA and satellite manufacturers. [2] Sun angle sensors designed by Adcole have flown on numerous space exploration missions, including Mars Pathfinder and the Lunar Reconnaissance ...
The spacecraft remained attached to the dummy service module, which in turn remained attached to the Delta IV's upper stage (which is nearly identical to the Interim Cryogenic Upper Stage to be used on the Block 1 version of the Space Launch System rocket) until re-entry began and relied on internal batteries for power rather than photovoltaic ...
In addition, sun-induced chlorophyll fluorescence, a proxy for gross primary production, can be observed using the GOME-2 instrument. [ 16 ] [ 17 ] The GOME-2 instrument provides a second source of ozone observations that supplement data from the SBUV/2 ozone instruments on the NOAA-18 and NOAA-19 satellites, which are part of the IJPS.
The U.S. Agency for International Development is at the center of a political firestorm after the Trump administration indicated it will shut it down as an independent agency and possibly move it ...
Meteosat 8 was a weather satellite, also known as MSG 1. The Meteosat series are operated by EUMETSAT under the Meteosat Transition Programme (MTP) and the Meteosat Second Generation (MSG) program. Notable for imaging the first meteor to be predicted to strike the Earth, 2008 TC3 . [ 1 ]