||Instrument: TRACE IMAGING TELESCOPE : Transition Region and Coronal Explorer Telescope|
Solar/Space Observing Instruments
Instrument Class: Photon/Optical Detectors
Instrument Type: Telescopes
Wavelength Keyword: Ultraviolet
Number Channels: 8
Spectral/Frequency Coverage/Range: 284A - 2500A
Spectral/Frequency Resolution: 8.4 - 170 nm
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The TRACE imaging telescope is the sole science instrument on the spacecraft. Its primary science objectives are to: (1) follow the evolution of magnetic field structures from the solar interior to the corona; (2) investigate the mechanisms of the heating of the outer solar atmosphere; and, (3) determine the triggers and onset of solar flares and mass ejections.
The 30 cm aperture Transition Region and Coronal Explorer (TRACE) telescope on the TRACE mission uses four normal-incidence coatings for the EUV and UV on quadrants of the primary and secondary mirrors. The segmented coatings on solid mirrors form identically sized and perfectly coaligned images. Pointing is internally stabilized to 0.1 arc second against spacecraft jitter. A 1024 x 1024 CCD detector collects images over an 8.5 x 8.5 arc minute field-of-view (FOV). A powerful data handling computer enables very flexible use of the CCD array including adaptive target selection, data compression, and fast operation for a limited FOV.
For more information on the TRACE telescope, see: http://vestige.lmsal.com/TRACE/Project/Instrument/insrument.htm
Instrument Start Date: 1998-04-02
Instrument Owner: USA/NASA
Lockheed Martin Solar and Astrophysics Lab