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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
31874295620071628828351959412 175.49384 0.82419 175.49387 0.8241810.00168435QSO
31874514893251584028351584420 175.49384 0.82419 175.49387 0.8241800.00168435QSO
31874295118432870428351660412 175.49384 0.82419 175.49387 0.8241800.00168435QSO

Flux-Matched Spectra of this Object

specObjIdplateMJDfiberradecspecRaspecDecsciencePrimarydistanceArcMinclass
31874514893251584028351584420 175.49384 0.82419 175.49387 0.8241800.00168435QSO
31874295118432870428351660412 175.49384 0.82419 175.49387 0.8241800.00168435QSO
31874295620071628828351959412 175.49384 0.82419 175.49387 0.8241810.00168435QSO