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Other spectra

The SDSS often takes repeat spectra of the same object. Each time that astronomical object is spectroscopically observed with any of the spectrographs connected to the SDSS telescope, it is assigned a separate specObjID. We then select the best spectrum and assign it as sciencePrimary.

Information about each spectroscopic observation is stored in the specObjAll table. The specObj view contains only data for spectra assigned as sciencePrimary.

The table below shows all spectra that were measured for this object.

All Spectra of this Object

specObjIdplateMJDfiberradecspecRaspecDecsciencePrimarydistanceArcMinclass
6809696175886671872604856072922 229.67375 43.88930 229.67374 43.8893110.00074749QSO
1889360431714166784167853433365 229.67375 43.88930 229.67376 43.8893000.00039166QSO

Flux-Matched Spectra of this Object

specObjIdplateMJDfiberradecspecRaspecDecsciencePrimarydistanceArcMinclass
1889360431714166784167853433365 229.67375 43.88930 229.67376 43.8893000.00039166QSO
6809696175886671872604856072922 229.67375 43.88930 229.67374 43.8893110.00074749QSO