Popped in at SALT late in the afternoon, just in time to catch Jono handing the whole wave-plate mechanism to Keith, who was sitting underneath the RSS.
|Serving up a wave-plate assembly|
With the wave-plates re-installed, the last of the cleaned & re-filled collimator optics, the field lens group, could go back in as well.
|The wave-plates fit between the main group & the field lens group of the collimator|
Ockert could then check the overall alignment of the optics against the references that were established before the optics were removed.
|RSS showing off all its nerves & blood vessels|
That completes the RSS optical service part of the shut-down - great stuff guys! Look forward to seeing the improved throughput of the spectrograph when we get back on-sky :)