STEREO-A/SECCHI/EUVI FITS Data: Solar Imagery from Two Spacecraft

The Extreme Ultraviolet Imager (EUVI) on NASA's STEREO mission captures solar images in four spectral channels. It provides a 2048 x 2048 pixel field of view out to 1.7 solar radii, observing emission lines from 30.4 nm to 21.1 nm. The instrument offers improved resolution and cadence over its predecessor, SOHO-EIT.

Use Cases

• Track coronal mass ejections (CMEs) based on imagery from two vantage points.
• Analyze solar plasma temperatures based on four spectral channels spanning 0.1 to 20 MK.
• Compare solar feature evolution based on improved image resolution and cadence over SOHO-EIT.

Strengths

• Images have a 2048 x 2048 pixel resolution.
• Data is collected from two spacecraft for stereoscopic views.
• Observes four specific spectral emission lines (30.4 nm, 17.1 nm, 19.5 nm, 21.1 nm).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected by the Extreme Ultraviolet Imager (EUVI) instrument on the STEREO-A spacecraft.

Freshness

Last updated 2026-03-13 11:09:11.398844; freshness should be verified.

Geography

The Sun and its corona out to 1.7 solar radii.