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Mirror Moves

The transport cart for the Primary/Tertiary Mirror (M1M3) Cell Assembly, featured in this video, has been completed at CAID Industries in Tucson, AZ. On the summit of Cerro Pachón, this cart will be used to safely detach M1M3 from the telescope and transport it to the coating plant for periodic maintenance of the mirror. The cart will move along rails that are built into the floor of the observatory building, and a vertical platform lift will carry the cart between the telescope and maintenance levels of the building.

Zeljko Ivezic appointed Deputy Director of the LSST Construction Project

Dear Colleagues:

I am delighted to announce that Professor Zeljko Ivezic of the University of Washington has agreed to take on the role of Deputy Director of the LSST Construction Project, effective September 1, 2018.

LSST 2018 Project and Community Workshop - Another Successful Gathering

September 4, 2018 - The LSST 2018 Project and Community Workshop, held in Tucson August 13-17, provided a valuable opportunity for face-to-face interactions between geographically distributed LSST project team members and participants from the LSST science community. This year’s annual gathering boasted the highest registration to date, with more than 300 people attending the meeting. Photos from the event are available in the LSST Gallery.

May the Force Balance System Be With Us!

August 27, 2018 – The LSST 8.4-meter M1M3 Mirror Cell Assembly is a busy place. It includes the M1M3 monolithic steel surrogate mirror, the mirror support systems, the thermal control system, a laser tracker interface, the supporting steel structure, various mirror sensors, and the M1M3 control system. All of these components will work together to ensure the mirror holds its shape precisely as the telescope works through the night, pointing to various locations in the sky.

A Tight Fit

August 9 - Imagine you’re driving a ridiculously expensive sports car, and you have to park it in a space so tight there’s only an inch of clearance between you and the cars on either side, which, incidentally, are also ridiculously expensive sports cars. Feel the pressure? The Integration and Testing (I&T) Group at SLAC National Accelerator Laboratory know this pressure well; they’re currently facing a comparable challenge as they work to integrate the 21 science rafts and the four corner rafts into the LSST Camera cryostat grid.

Focus Group Helps EPO Set Direction

July 27, 2018 - The Education and Public Outreach (EPO) team hosted a teacher focus group in Tucson on July 16-18. This was the second in a series of events to collect feedback from educators about the formal education products being developed by the EPO team. Twelve teachers with students in advanced-middle school through college attended the focus group; their comments and survey results will inform the EPO team as they continue to refine the online resources provided for teachers during LSST Operations.

Filter Exchange Progress in Paris

July 16, 2018 - In Paris, France, the Filter-Exchange team is currently performing combined testing of the prototype filter exchange components at the Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE). The filter exchange is the result of the collaborative work of five French IN2P3/CNRS laboratories.

Opportunity for young researchers to comment on Astro2020 Process

Dear Colleagues:

I would like to call the attention of our more junior colleagues to the opportunity to provide input to the Astro2020 Decadal Survey process, described at the following link:

The deadline for applying for this opportunity is July 16.

As you know, the number one ranking that LSST received in the last decadal survey was crucial to our Project getting approved by both NSF and DOE. Your experience working on LSST will probably be of interest to the Astro2020 committee, and I believe they will be responsive to any comments you may have. I encourage you to apply.

Steve Kahn


July 2, 2018 – LSST@Europe3 drew approximately 150 participants to Lyon, France on June 11-15 for presentations, tours, and informal opportunities for networking between members of the LSST Project and the European science community. Zeljko Ivezic, LSST Project Scientist and co-chair of the meeting’s Scientific Organizing Committee, enthusiastically noted the high level of participation from younger scientists at this meeting, an indication that excitement for LSST is building among those just beginning their science careers.


June 21, 2018 – Last week’s SPIE meeting on Astronomical Telescopes and Instrumentation in Austin, TX, gave LSST team members a chance to share exciting construction progress and learn from colleagues working on other projects and related technologies.  Over the six-day meeting, there were 20 LSST-authored posters, 16 oral presentations plus 2 invited talks, one on LSST Construction Status (V. Krabbendam) and another on the LSST Science Platform (F.


Financial support for Rubin Observatory comes from the National Science Foundation (NSF) through Cooperative Support Agreement No. 1202910, the Department of Energy (DOE) Office of Science under Contract No. DE-AC02-76SF00515, and private funding raised by the LSST Corporation. The NSF-funded Rubin Observatory Project Office for construction was established as an operating center under management of the Association of Universities for Research in Astronomy (AURA).  The DOE-funded effort to build the the Rubin Observatory LSST Camera (LSSTCam) is managed by the SLAC National Accelerator Laboratory (SLAC).
The National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 to promote the progress of science. NSF supports basic research and people to create knowledge that transforms the future.
NSF and DOE will continue to support Rubin Observatory in its Operations phase. They will also provide support for scientific research with LSST data.   

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