TRACE
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WuBot
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robot Removing: [[de:TRACE]]
{{otheruses4|the space telescope|the HTTP request method|HyperText Transfer Protocol}}
{{Infobox Space telescope
|name = Transition Region and Coronal Explorer (TRACE)
|image = [[Image:TRACE satellite.jpg|240px|Artist's illustration of TRACE in orbit]]
|caption = Artist's illustration of TRACE in orbit
|organization = [[NASA]]
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|launch_date = [[2 April]], [[1998]]
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|wavelength = [[White|white light]] (170 to 1000 nm)<br/>{{nowrap|[[Ultraviolet|UV]] (~121.6/155/~160/~170 nm)}}<br/>[[Ultraviolet|EUV]] (17.1/19.5/28.4 nm)
|mass =
|style = [[Cassegrain reflector]]
|diameter = 30 cm
|area =
|focal_length = 8.66 m
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|website = http://trace.lmsal.com/
}}
'''TRACE''' ('''Transition Region and Coronal Explorer''') is a [[NASA]] [[Space observatory|space telescope]] designed to investigate the connections between fine-scale magnetic fields and the associated plasma structures on the Sun by providing high resolution images and observation of the [[Sun|solar]] [[photosphere]] and transition region to the [[corona]]. A main focus of the TRACE instrument is the fine structure of [[coronal loop]]s low in the solar atmosphere.
[[Image:Traceimage.jpg|left|thumb|TRACE image of some typical million Kelvin loops]]
The [[satellite]] was built by [[NASA]]'s Goddard Space Flight Center. Its telecope was constructed by a consortium lead by Lockheed Martin's Advanced Technology Center. TRACE was launched in April 1998 on a Pegasus rocket, has a 30 cm aperture and 1024 x 1024 [[Charge-coupled device|CCD]] detector giving an 8.5 [[arc minute]] [[field of view]]. The telescope is designed to take [[correlated]] images in a range of wavelengths from [[visible light]], through the [[Lyman alpha line]] to far [[ultraviolet]]. The different wavelength [[passband]]s correspond to [[Plasma (physics)|plasma]] emission temperatures from 4,000 to 4,000,000 [[Kelvin|K]].
[[Image:Sunspot TRACE.jpeg|right|thumb|Image of a [[sunspot]] taken by TRACE]]
[[Image:Tracemosaic.jpg|right|thumb|TRACE mosaic of the full-disk Sun]]
TRACE is a [[SMEX]] or Small Explorer mission.
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==External links==
*[http://trace.lmsal.com/ Official TRACE website]
*[http://trace.lmsal.com/POD/TRACEpodoverview.html Images taken by TRACE]
*[http://solarsystem.nasa.gov/missions/profile.cfm?MCode=TRACE Transition Region and Coronal Explorer Mission Profile] by [http://solarsystem.nasa.gov NASA's Solar System Exploration]
{{Sun spacecraft}}
{{observatory-stub}}
[[Category:Space telescopes]]
[[Category:Acronyms]]
[[Category:Solar missions]]
[[Category:Explorer program]]
[[fr:TRACE]]
[[zh:太阳过渡区与日冕探测器]]