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The SOHO Mission Interruption sequence of events began on 24 June 1998, while the SOHO Team was conducting a series of spacecraft gyroscope calibrations and maneuvers. Operations proceeded until 23:16 UTC when SOHO lost lock on the Sun and entered an emergency attitude control mode called Emergency Sun Reacquisition (ESR).
The Large Angle and Spectrometric Coronagraph (LASCO) on board the Solar and Heliospheric Observatory satellite (SOHO) consists of three solar coronagraphs with nested fields of view: [1] C1 - a Fabry–Pérot interferometer coronagraph imaging from 1.1 to 3 solar radii, non-functional since the 24 June 1998 SOHO Mission Interruption [2]
The SOHO Mission Interruption sequence of events began on 24 June 1998, while the SOHO Team was conducting a series of spacecraft gyroscope calibrations and maneuvers. . Operations proceeded until 23:16 UTC when SOHO lost lock on the Sun, and entered an emergency attitude control mode called Emergency Sun Reacquisitio
Normal safe mode operation can sometimes be overridden. A spacecraft's ability to enter safe mode may be suppressed during crucial spacecraft operations (such as the orbit insertion maneuver of the Cassini spacecraft at Saturn), during which – if a critical failure were to occur – most, if not all, of the mission objectives would be lost anyway. [3]
Nicknamed the “Halloween comet,” Comet C/2024 S1 (ATLAS) evaporated during its flyby of the sun on Monday morning. An ESA and NASA telescope captured its demise.
The SOHO spacecraft, which was launched Dec. 2, 1995, aboard an Atlas rocket, gathered data to study the internal structure of the Sun, its extensive outer atmosphere and the origin of solar wind, as well as the stream of highly ionized gas that blows continuously through the Solar System. The information SOHO provided helped scientists better ...
Defense Secretary Pete Hegseth ordered an immediate pause on gender-affirming medical care procedures for all active-duty service members in a memo that was addressed to senior Pentagon leadership ...
2 spacecraft: Ariane 6 Deep Space Climate Observatory (DSCOVR) 11 February 2015: NASA/NOAA: Earth-Sun L1 Lissajous: Operational: Falcon 9 v1.1 Double Star: 29 December 2003: CNSA/ESA: highly elliptical geocentric: Operational: 2 spacecraft, one was deorbited 14 October 2007 the other remains in orbit: Long March 2C Equator-S: 2 December 1997 ...