Posted Jun 28, 2025
On the night of June 26 UT when moving the 2.4″ longslit into the focal plane, the mask failed to insert into the focal plane despite the software thinking so. When the instrument was opened, the grabber was found to …
Posted Apr 10, 2025
April 11, 2025: Problem with the oxygen regulator was found and resolved. The MOS mask milling machine has been returned to operation.
April 9, 2025: The laser for the MOS mask milling machine recently stopped working. Currently all mask milling …
Posted Apr 03, 2025
Apr 2, 2025: Flaky switch on LUCI1 Filter Wheel #2 (broadband filters).
LUCI1’s Filter Wheel #2, where the broadband filters are located, is showing a flaky position sensing switch that affects all higher-numbered filters, which includes all but the zJspec …
Posted Mar 09, 2025
Mar 13, 2025: All normal modes with LUCI1 are released for science.
N375 and N30 imaging, as well as G210 and G200 spectroscopic modes have all been released for normal science use.
Mar 9, 2025: LUCI1 All modes **NOT** …
Posted Feb 14, 2025
Update Feb 24, 2025
On-sky seeing limited checkouts were completed on UTFeb24. The binodal astigmatism was measured and collimation tables updated. The SX ASM is released for all available seeing-limited science modes without restrictions.
Update Feb 14, 2025
ASM …
Posted Jan 21, 2025
DX ASM in Cold Weather Update – Jan 21, 2025
Work was done in summer shutdown 2024 to attempt to address the issues causing the failures in cold temperatures with the DX ASM. Unfortunately, we have continued to see the …
