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Instrument details
Acronym
PRARE
Full name
Precise Range And Range-rate Equipment
Purpose
Solid Earth - Precision orbitography
Short description
Measuring differential signals from a ground stations network. Frequencies 2.2 GHz and 8.5 GHz
Background
On its first flight, on ERS-1 (1991), the instrument failed soon
Scanning Technique
N/A
Resolution
N/A
Coverage / Cycle
N/A
Mass
19 kg
Power
30 W
Data Rate
N/A
Providing Agency
DLR
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
1991 to 1991
Last update:
2017-03-31
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 Positioning system
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
Geoid 4 - fair Highly indirect.. Ground stations network needed. Opportunity information from radio-positioning system used for precise orbit determination
Gravity field 3 - high Highly indirect. Opportunity information from radio-positioning system used for precise orbit determination
Instrument: PRARE