...

Visiting Astronomer, CTIO, NOAO, which is operated by AURA Inc., under contract to the NSF.

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...

On leave of absence from Observatorio Astronómico Nacional, Universidad Nacional de Colombia, Bogotá.

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... NED

The NASA/IPAC Extragalactic Database (NED) is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.

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... routines

IRAF is distributed by NOAO, which is operated by AURA Inc., under contract to the NSF.

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