SOHO LASCO C3: Polarized Brightness Images of the Solar Corona

Polarized Brightness data from the LASCO C3 coronagraph on the SOHO spacecraft. The instrument images the solar corona from 3 to 30 solar radii with a spatial resolution of 112 arcsec, using a 1024 x 1024 pixel CCD. The dataset is produced by the National Aeronautics and Space Administration (NASA) and was last updated in March 2026.

Use Cases

• Analyze coronal structures and mass ejections based on polarized brightness images.
• Study solar activity across a wide field of view (3-30 solar radii) mentioned in the description.
• Develop image compression algorithms based on the seven techniques referenced in the instrument description.
• Model Doppler shifts and line profiles from spectral data, as the instrument's design suggests this capability.

Strengths

• Images are captured with a 1024 x 1024 pixel CCD, providing a defined spatial grid.
• The instrument's spatial resolution is specified as 112 arcsec for the C3 coronagraph.
• The dataset originates from a well-documented NASA instrument, with technical details referenced from a published paper.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Data collected by the LASCO C3 coronagraph instrument on the SOHO spacecraft.

Freshness

Last updated 2026-03-13 04:46:37.950551; freshness should be verified.