Posted Apr 16, 2024
The LUCI2 G200 grating has been having increasing trouble reliably reaching the central wavelength requested. Users/observers should frequently check the grating position for both science and calibration exposures by comparing to known good data or between LUCI1 and LUCI2. Troubleshooting …
Posted Jan 20, 2024
Resolved: LUCI1 Offline – Failure of FM4 motor
LUCI1 is again available for science observations. Some additional exercising of the fold mirror tilt mechanism appears to have freed up motion. We don’t see any dropped steps in either direction now. …
Posted Jan 06, 2024
DX in Cold Weather – Update (Jan 6 2024)
The failure is linked to the cooling temperature at the adaptive secondary. The cooling setpoint was slightly adjusted to provide additional leeway while maintaining the safety of the adsec and neighboring …
Posted Dec 15, 2023
2023-12-15 DX LUCI Pyramid Rotated – Resolved
The DX SOUL LUCI Wavefront sensor underwent a series of checkouts and performance checks on 2023-12-14. The results were analyzed and showed that the performance of the WFS is comparable to before …
Posted Nov 29, 2023
Update Dec 8, 2023: LUCI1 released for science…with caveats!
LUCI1 is again available for science…with caveats, so please read this carefully. We are assuming that the flexure calibrations taken prior to the camera wheel failure are still valid. We …
Posted Nov 04, 2023
UPDATE (Jan 31, 2024)
Both LUCIs are available for all normal observing modes:
Seeing-limited (SL) or ESM N375 Imaging
SL/ESM N180 or N375 +G210 Spectroscopy
SL/ESM N180 or N375 +G200 Spectroscopy
Full AO N30 Imaging
