Hi, It came up in the SCOC TOO workshop/proposal that Rubin will not be commissioned with the Simonyi Survey Telescope able to track non-sidereally. The public year 1/commissioning plan documents don’t explicitly include non-sidereal tracking. The SSSC has informally known this/expected this bas…

Hi Meg, thanks for this question. I haven’t found a document stating that the telescope will not have non-sidereal tracking during commissioning and early science. But I did find the relevant requirement for the telescope to be able to track non-sidereally. As I understand it, since a requirement e…

My understanding was that @rblum5 stated there will be no non-sidereal tracking for TOOs at the SCOC TOO workshop in Year 1, so I think it would be helpful to have something in a commissioning document that clarifies what will be delivered in terms of non-sidereal tracking for year 1/commissioning f…

Note that the agencies have placed restrictions on non-sidereal tracking, with pre-approval required for some parts of the sky. See number 6 of the list in the introduction of DMTN-199: https://dmtn-199.lsst.io

Thanks Meg, yes I think we can get this statement into a citable document (probably RTN-011 as you mention) – we’ll be back in touch in a couple weeks.

Hi @MelissaGraham , @mschwamb , Just following up on this thread to see if Meg’s statement about non-sidereal tracking for year 1/commissioning was able to get incorporated in RTN-011.

Reference for sidereal tracking only with the Simonyi Survey Telescope

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leanne (Leanne Guy) May 3, 2024, 5:05pm 8

See post: RTN-011 v5.1: Rubin Plans for an Early Science Program – a new version of RTN-011 has been issued clarifying the project’s position on non-sidereal tracking.

Topic		Replies	Views
Non-sidereal tracking constraints? Survey Strategy	6	1737	July 18, 2018
RTN-011 v5.1: Rubin Plans for an Early Science Program Early Science	0	959	May 3, 2024
SCOC v2.0 and 2.1 simulations review timeline Survey Strategy	16	4647	November 14, 2022
The Third SCOC-Science Collaborations Workshop (virtual) Survey Strategy	9	2399	November 7, 2022
RRB: Rubin Observatory Active Optics System On-Sky Performance RCW 2025 rrb	0	794	July 30, 2025

Reference for sidereal tracking only with the Simonyi Survey Telescope

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