BackInstrument:  Tri-TIP 

Instrument details
Acronym Tri-TIP
Full name Tiny Ionospheric Photometer
Purpose Observes several discrete wavelengths of far ultraviolet (FUV 135.6 nm) emission of atomic oxygen at nighttime to infer structure of ionosphere.
Short description Each 1U Tri-TIP instrument has 3 FUV photometers viewing different lines of sight through the ionosphere. There are 2 Tri-TIP instruments on each CIRCE spacecraft allowing 12 simultaneous multiple views of the ionosphere.
Background Research satellite for space weather applications.
Scanning Technique Multiple lines of sight through the ionosphere.
Coverage / Cycle
Mass Power Data Rate


Providing Agency NRL
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2023 to 2025
Last update: 2022-11-07
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
  • Solar and space environment monitors
  • Space radiometer or spectrometer
WIGOS Subcomponents No WIGOS subcomponents have been defined.
Mission objectives
No mission objectives have been defined.
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.

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Note: * Primary mission objective.