Einstein SSS and MPC: Raw X-Ray Spectrometer Data from 1978-1979

From 1978 November 13 to 1981 April 25, the Einstein Observatory (HEAO-2) collected astronomical data. Its Solid State Spectrometer (SSS) operated between 1978 December 1 and 1979 October 22, with reliable data ending on 1979 October 03. This NASA HEASARC database provides the raw SSS and associated Monitoring Proportional Counter (MPC) data, restored in FITS format from the original machine-dependent data.

Use Cases

• Re-analyze historical X-ray spectral data based on the raw Solid State Spectrometer (SSS) measurements.
• Correlate primary detector data with auxiliary instrument readings based on the associated Monitoring Proportional Counter (MPC) data.
• Study the performance and calibration of early space-based X-ray spectrometers based on the detailed operational timeline provided.
• Archive and preserve historical satellite data in a modern, accessible format based on the FITS restoration process.

Strengths

• Data originates from a historically significant NASA satellite mission, the Einstein Observatory (HEAO-2).
• Operational dates for the satellite and the specific SSS instrument are precisely documented.
• Data has been restored from its original machine-dependent format to the standard FITS format for accessibility.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is from a specific historical period (1978-1979) and may not reflect current instrumentation or celestial states.

Provenance

Source

National Aeronautics and Space Administration (NASA) HEASARC

Collection Method

Raw data from the Einstein Observatory's Solid State Spectrometer and Monitoring Proportional Counter, restored in FITS format from original machine-dependent data.

Time Range

Satellite operational: 1978-11 13 to 1981-04-25. SSS reliable data: 1978-12-01 to 1979-10-03.

Freshness

Last updated 2026-03-13 20:13:58.847331; freshness should be verified.

Geography

Space-based observatory; celestial coverage.