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Instrument details
Acronym
LIS
Full name
Lightning Imaging Sensor
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
Heritage of OTD flown on MicroLab-1
Scanning Technique
Pushbroom, matrix array of 128 x 128 detectors, swath 600 km; each earth location observed continuously (every 2 ms) for about 90 s
Resolution
4 km
Coverage / Cycle
On TRMM: several passes at ~ 100-min intervals with longer gaps once or twice per day. More regular coverage at 15°N and 15°S. On ISS: latitude coverage extended to 51.6°
Mass
21 kg
Power
33 W
Data Rate
6 kbps
Providing Agency
NASA
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
1998 to 2015-04-08
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: LIS