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Simple Spectrum Access for SEDs & 1d Spectra M. Dolensky, Oct. 16, 2003 Data Access Layer.

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Presentation on theme: "Simple Spectrum Access for SEDs & 1d Spectra M. Dolensky, Oct. 16, 2003 Data Access Layer."— Presentation transcript:

1 Simple Spectrum Access for SEDs & 1d Spectra M. Dolensky, Oct. 16, 2003 Data Access Layer

2 SED definition for AVO prototype

3 SED definition for SSA frequency|wavelength|energy* lower error interval upper error interval (2nd value if asymmetric) flux* error in flux|lower limit|upper limit spectral resolution * quality flag (reserved values for good, bad, other) Observation Parameters/per chunk coverage on the sky* intrument name observation time interval* aperture * queryable parameters

4 Physical Units

5 Characterizing 1d Spectra: Differences between SED & Spectrum? frequency|wavelength|energy* lower error interval upper error interval (2nd value if asymmetric) flux* error in flux|lower limit|upper limit spectral resolution * quality flag (reserved values for good, bad, other) Observation Parameters/per chunk coverage on the sky* intrument name observation time interval* aperture * queryable parameters

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