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
6525863849634754560	5796	56274	538	142.36997	27.90517	142.36997	27.90517	1	0.00011536	QSO
2184394035223881728	1940	53383	539	142.36997	27.90517	142.36997	27.90517	0	0.00011536	QSO

Flux-Matched Spectra of this Object

specObjId	plate	MJD	fiber	ra	dec	specRa	specDec	sciencePrimary	distanceArcMin	class
2184394035223881728	1940	53383	539	142.36997	27.90517	142.36997	27.90517	0	0.00011536	QSO
6525863849634754560	5796	56274	538	142.36997	27.90517	142.36997	27.90517	1	0.00011536	QSO

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Other spectra

All Spectra of this Object

Flux-Matched Spectra of this Object