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Instrument details
Acronym
OVM
Full name
Overhauser Magnetometer
Purpose
Observation of the magnetic field along the orbit
Short description
Overhauser proton-precession scalar magnetometer, absolute measurement error < 1 nT. Dynamic range 16000-64000 nT, resolution 0.1 nT @ maximum of the dynamics
Background
Part of a package of instruments for Space Weather and Earth's interior observation. Flown both on Ørsted and within the SAC-C MMC (Magnetic Mapping Payload) / Ørsted-2
Scanning Technique
In-situ measurement in a high-inclination drifting LEO
Resolution
N/A
Coverage / Cycle
Sampling at 1 s intervals
Mass
2.5 kg
Power
3 W
Data Rate
Providing Agency
CNES
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
1999 to 2013-08-15
Last update:
2016-08-02
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 Field or radiowave sensor
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
Geomagnetic field 3 - high No specific limitation. Platform, scalar, wide dynamics, high resolution
Instrument: OVM