(updated May 1, 2024)
The Project schedule remains unchanged. Activities and progress have gone according to plan. Addressing technical issues that have developed with the telescope are not included in forecast schedule impacts, but they likely will exert schedule pressure of two weeks in the coming months.
Project earned value toward the MREFC effort increased by $1.8 million this month to a calculated $509.7 million. The cost variance changed by -$1.1 million this month to -$4.0 million, and the cost performance index held at 0.99. The schedule variance changed by -$0.4 million to -$7.5 million, which equates to a schedule performance index of 0.99. Four project controls change requests (LCR) were implemented this month returning 596,488 to contingency. As of the end of the month, the project has allocated 89% of the total contingency to the baseline through the change control process. The remaining contingency of $9.7 million is 13% of (TPCII -BAC -CV)/(EACII -ACWP ).
(ETC = Estimate to completion, BAC = Budget at completion, BCWP = Budgeted cost of work performed).
A more detailed list can be found here.
Updated with post Covid replan dates pending agency approval
The table shows forecast dates, i.e., the Project’s current best estimate. There is, in addition, schedule contingency that is not included in those dates, amounting to about 6 weeks at present. It is likely that the Project will use most or all of that schedule contingency.
The schedule for science data is best estimated relative to the System First Light Milestone. The Operations Team, in consultation with the Rubin Construction Project, currently anticipate the following:
Financial support for Rubin Observatory comes from the National Science Foundation (NSF) through Cooperative Agreement No. 1258333, 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 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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