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  2. Mass Surrogate Removal

Mass Surrogate Removal

The Rubin mirror cell surrogate mass on the platform lift. The surrogate mass is a criss-crossing structure of yellow steel. The mass is about as tall as a person, but several times larger in the other two dimensions. The observatory platform lift is a huge, open elevator used to transport large equipment. The lift is at its highest level, meaning that the portion of the building roof above it has been raised as well
The yellow cross-shaped structure in this photo is the "M1M3 mass surrogate," which approximates the mass of Rubin's primary mirror and its steel support structure. In April 2023 the mass surrogate was removed from the telescope mount and transported to a lower level of the observatory, using the vertical platform lift.
Credit: RubinObs/NSF/AURA

About the image

Date created:
April 19, 2023
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5472 × 3648 px
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  • #Mass
  • #Surrogate
  • #TMA
  • #lift
  • #zsl_sdr

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The U.S. National Science Foundation (NSF) and the U.S. Department of Energy (DOE) Office of Science will support Rubin Observatory in its operations phase to carry out the Legacy Survey of Space and Time. They will also provide support for scientific research with the data. During operations, NSF funding is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with NSF, and DOE funding is managed by SLAC National Accelerator Laboratory (SLAC), under contract by DOE. Rubin Observatory is operated by NSF NOIRLab and SLAC.

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The DOE Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time.

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