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Type:
Task
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Status: Open (View Workflow)
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Priority:
Normal
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Resolution: Unresolved
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Component/s: None
Return a `pfsConfig` for all SUNSS_IMAGING and SUNSS_DIFFUSE fibers. Use the provided (ra, dec, pa) pointing to generate approximate ra, dec for the fibers. If none provided, set all ra/dec to NaN. In any case, set all pfi positions to NaN.
ra/dec/pa might be fuzzed to avoid information leakage, but that would be done by the ICC caller.
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INSTRM-1422 Publish complete pfsDesign/pfsConfig files before any exposure.
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Well, I think Jim's document (page 8 of AligningSunssV4.pdf) answers the question?
Thanks for the pointer. So the x-y shift using the set screws has been applied? In which case the telescope boresight falls on the center fiber, and from there N is 4.1 degrees East of fiber 1 (6.7deg from the truss angle minus the 2.6deg measured calibration for the ferrule seating, etc.). Right? With 7 fibers along the 60deg edge that seems a good match with the figure...
Yes, one adjustment was applied, and we checked the adjustment.
https://pfs.ipmu.jp/internal/SlackArchive/Full/commissioning.html
(See a few conversations from "rhl Sat 2021-04-03 01:58PM") We were almost there. Further analysis is needed if we apply the second alignment.
Yes.. 4.1 degree sounds correct.
More specifically, we need a (pfs_utils?) library function which returns a pfsConfig given (ra, dec, pa), where (ra, dec) is the telescope pointing and pa is the SuNSS rotator angle w.r.t. the sky.
We will need a second routine to calculate that pa, since SuNSS has a peculiar physical rotation. But we do have the angle of SuNSS relative to the telescope calibrated, right? yuki.moritani?