No JavaScript detected
Instrument details
Acronym
OTD
Full name
Optical Transient Detector
Purpose
Proxy for convective precipitation, proxy for NOx generation, study of Earth electric field
Short description
CCD camera operating at 777.4 nm (O2) to count flashes and measure their intensity
Background
New development
Scanning Technique
Pushbroom, matrix array of 128 x 128 detectors, swath 1300 km; each earth location observed continuously (every 2 ms) for about 3 min
Resolution
10 km
Coverage / Cycle
Nearly-global in one day
Mass
18 kg
Power
Data Rate
Providing Agency
NASA
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
1995 to 2000-04-03
Last update:
2018-12-08
Detailed characteristics
Satellites this instrument is flying on
Note: a red tag indicates satellites no longer operational, a
green tag indicates operational satellites, a blue tag indicates
future satellites
Instrument classification
Earth observation instrument Passive optical radiometer or spectrometer Lightning imager
WIGOS Subcomponents
No WIGOS subcomponents have been defined.
Mission objectives
Tentative Evaluation of Measurements
The following list indicates which measurements can typically be
retrieved from this category of instrument. To see a full Gap Analysis by Variable,
click on the respective variable.
Note: table can be sorted by clicking on the column headers
Variable Relevance for measuring this variable Operational limitations Explanation
Total lightning density 3 - high Discontinuous availability. NIR channel. Area monitored for about 90 s, moving with the LEO satellite
Instrument: OTD