BackForwardInstrument:  IRLS 

Instrument details
Acronym IRLS
Full name Interrogation, Recording and Location System
Purpose To collect data from ground-based observing platform, and provide their location
Short description Data are collected from Data Collection Platforms upon interrogation. By a sequence of two interrogations the platform location is determined. DCP bit rate: 1 kbps
Background IRLS was the precursor of the Data Collection System mission. It was used, i.a., in support of the Nimbus-6 Tropical Wind Energy-conversion and Reference Level Experiment (TWERLE) in association with 300 floating balloons, during the First GARP Global Experiment (FGGE)
Scanning Technique N/A
Resolution N/A
Coverage / Cycle N/A
Mass 7 kg Power 12 W Data Rate 1 kbps


Providing Agency NASA
Instrument Maturity Flown on an R&D satellite
Utilization Period: 1969 to 1980
Last update: 2012-09-05
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
  • Other payload component
  • Data Collection System
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.