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Instrument details
Acronym
SECCHI/COR-1
Full name
SECCHI / Coronagraph imager 1
Purpose
Observation of the K-corona and of Coronal Mass Ejections (CMEs)
Short description
Internally occulted Lyot coronagraph, companion of COR-2 for externally. Bandpass 648-750 nm, 3 white light images at 3 different polarization angles, 36 mm aperture telescope
Background
Part of the package "SECCHI" (Sun-Earth Connection Coronal and Heliospheric Investigation)
Scanning Technique
Array of 2048x2048 detectors binned in 1024x1024. The Sun is observed by two STEREO satellites moving in the plan of Ecliptic with different viewing conditions, so as to implement stereoscopy. Corona view included
Resolution
12,000 km at the Sun surface
Coverage / Cycle
Full solar corona every 1 min
Mass
Power
Data Rate
Providing Agency
NRL
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
2007-01-21 to 2014-10-01
Last update:
2021-10-02
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 Solar activity monitor
WIGOS Subcomponents
Subcomponent 2 Solar VIS spectrometer [from solar orbit, ecliptic, L5] Solar magnetic field sensor [from solar orbit, ecliptic, L5] Solar electric field sensor [from solar orbit, ecliptic, L5] Solar coronographic imager [from solar orbit, ecliptic, L5]
Mission objectives
Primary mission objectives Solar coronagraphic image Secondary mission objectives Solar electric field Solar magnetic field Opportunity objectives Show all Show fewer
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
Solar VIS flux 2 - very high Limited to the solar corona. Moderate dynamic range, solar disc occulted, polarisation capability
Solar magnetic field 4 - fair Limited to the solar corona. Fluxmetry with coarse spatial resolution, polarimetry exploited, solar disc occulted
Solar electric field 3 - high Limited to the solar corona. Fluxmetry with coarse spatial resolution, polarimetry exploited, corona view included
Solar coronagraphic image 2 - very high No specific limitation. VIS (400-700 nm), observed with occultation
Instrument: SECCHI/COR-1