OSO-7 satellite instruments captured solar images in extreme ultraviolet and soft X-ray wavelengths. The dataset includes raster spectroheliograms, solar spectra, synoptic maps, and polarimeter plots from 1973. SCIOPS provides this historical data, which includes digital large and small raster spectroheliograms.
Use Cases
- Analyze solar active region evolution based on raster spectroheliograms captured every 61 seconds.
- Study solar spectral features based on EUV spectra of selected regions.
- Investigate solar X-ray polarization based on polarimeter data with 20-second resolution.
- Create synoptic maps of solar features based on large raster data at 28.4 nm.
- Compare solar emissions across wavelengths based on simultaneous spectroheliograms in two X-ray bandpasses.
Strengths
- Data includes simultaneous observations in multiple wavelengths (EUV and two X-ray bandpasses).
- EUV spectroheliogram wavelength could be adjusted from 17.0nm to 40.0nm.
- X-ray polarimeter recorded integral solar emission in the 15-60 keV band.
- Large and small raster spectroheliograms are available in digital form.
Limitations
- Last updated 1973-03-31 23:59:59.999000; freshness should be verified.
- Row count is unknown, which may limit suitability assessment.
- The solar image was usually severely undersampled, with only about 1/3 of the solar image scanned.
Provenance
- Source
- SCIOPS
- Collection Method
- Data obtained with the GSFC Solar EUV and Soft X-ray Spectroheliograph on the OSO-7 satellite.