TRACE 1411865 219893808 2008-06-17T10:06:42Z WuBot 7192839 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]] |alt_names = |nssdc_id = |location = |orbit_type = |height = |period = |velocity = |accel_gravity = |launch_date = [[2 April]], [[1998]] |launch_location = |deorbit_date = |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 |instrument_1_name = |instrument_1_characteristics = |instrument_2_name = |instrument_2_characteristics = |instrument_3_name = |instrument_3_characteristics = |instrument_4_name = |instrument_4_characteristics = |instrument_5_name = |instrument_5_characteristics = |instrument_6_name = |instrument_6_characteristics = |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. <br> <br> <br> <br> <br> <br> ==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]]