Object Explorer

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

specObjId	plate	MJD	fiber	ra	dec	specRa	specDec	sciencePrimary	distanceArcMin	class
5601379625617518592	4975	56037	100	233.53455	33.89442	233.53455	33.89442	1	0.00007147	QSO
1525715642290825216	1355	52823	441	233.53455	33.89442	233.53455	33.89442	0	0.00006374	QSO

Flux-Matched Spectra of this Object

specObjId	plate	MJD	fiber	ra	dec	specRa	specDec	sciencePrimary	distanceArcMin	class
1525715642290825216	1355	52823	441	233.53455	33.89442	233.53455	33.89442	0	0.00006374	QSO
5601379625617518592	4975	56037	100	233.53455	33.89442	233.53455	33.89442	1	0.00007147	QSO

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Other spectra

All Spectra of this Object

Flux-Matched Spectra of this Object