EXOSAT TGS: X-ray Spectra and Lightcurves from Satellite Observatory

Spectra and lightcurves obtained using the EXOSAT satellite's Transmission Grating Spectrometer (TGS). The data is provided in two processed forms: TGS, which averages positive and negative grating orders for a general overview, and TGS2, which keeps the orders separate for detailed analysis. This service is provided by NASA's High Energy Astrophysics Science Archive Research Center (HEASARC).

Use Cases

• Modeling X-ray emission spectra from astronomical sources based on the averaged TGS data.
• Investigating subtle spectral features by comparing positive and negative grating orders in the TGS2 data.
• Analyzing temporal variations in X-ray sources using the lightcurve data mentioned in the title.

Strengths

• Data is processed into two distinct forms (TGS and TGS2) to cater to both general and expert use.
• Provided by the authoritative NASA HEASARC archive.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration (NASA), High Energy Astrophysics Science Archive Research Center (HEASARC).

Collection Method

Collected by the EXOSAT satellite's Transmission Grating Spectrometer (TGS).

Time Range

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Freshness

Last updated 2026-03 13 19:13:34.119681; freshness should be verified.

Geography

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