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11.4.2. astroML.datasets.fetch_sdss_spectrum

astroML.datasets.fetch_sdss_spectrum(plate, mjd, fiber, data_home=None, download_if_missing=True, cache_to_disk=True)

Fetch an SDSS spectrum from the Data Archive Server

Parameters :

plate: integer :

plate number of desired spectrum

mjd: integer :

mean julian date of desired spectrum

fiber: integer :

fiber number of desired spectrum

Returns :

spec: :class:`astroML.tools.SDSSfits` object :

An object wrapper for the fits data