FLEX: fluorescence explorer

Details FLEX: fluorescence explorer FLEX: fluorescence explorer

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3868..487s&link_type=abstract

Proc. SPIE Vol. 3868, p. 487-494, Remote Sensing for Earth Science, Ocean, and Sea Ice Applications, Giovanna Cecchi; Edwin T. E

Statistics

Applications

1

Scientific paper

FLEX is a scientifically driven space mission to provide demonstration/validation of the instrumentation and technique for measuring the natural fluorescence of vegetation in the Fraunhofer lines. The payload consists of high spectral resolution (0.1 - 0.3 nm) CCD imaging grating spectrometer with two channels: one in the red (648 - 664 nm) and one in the blue (391 - 438 nm) for working with several Fraunhofer lines. The across track FOV is 8.4 degrees; ground spatial resolution is better than 0.5 X 0.5 km2. To increase the S/N ratio a steering mirror will be used, if necessary, to 'freeze' the image and also to provide plus or minus 4 degrees across track depointing. Calibration is made by viewing the sun via a diffuser plate switched into the telescope field of view. A separate CCD camera will allow cloud detection and scene identification. A TIR radiometer will provide simultaneous surface temperature measurements. The spacecraft, overall mass estimated at 200 kg, is derived from the ASI-MITA bus which provides all the necessary subsystems and stabilized platform. By use of on-board storage, ground requirements for satellite control and data link are minimized; the possibility of local stations for real time reception/distribution is also envisaged. Provisional orbit characteristics are: LEO sun synchronous, 500 - 900 km altitude. Priority will be given to highest revisit frequency on a sufficient number of selected test sites.

Affiliated with

Also associated with

No associations

Rating

FLEX: fluorescence explorer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with FLEX: fluorescence explorer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FLEX: fluorescence explorer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1062032