Based on observations made with the Nordic Optical Telescope, operated on the island of La Palma jointly by Denmark, Finland, Iceland, Norway, and Sweden, in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias. Based on observations made with ESO Telescopes at the Paranal Observatories under programme ID 66.A-0062(A). Based on observations made with the NASA/ESA Hubble Space Telescope, obtained from the Data Archive at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. These observations are associated with program #7887.

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In the literature, this lens system is also referred to as FBQS J0951+2635 or FBQS 0951+2635.

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... programme

http://ankh-morpork.maths.qmw.ac.uk/~saha/astron/lens/pix/

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