Instruments Accessible on the Same Night

Keck 1

Hires, Osiris, and PCS/SSC each occupy separate nasmyth positions and each can be accessed when the tertiary mirror is installed.
LRIS, LRISp, and Mosfire all share the cassegrain position and can never be accessed at the same time.
An asterix * below indicates that once the Deployable Tertiary is installed in first half of 2018, these will change to either 'yes' or 'sometimes', as all nasmyth instruments and whichever cassegrain instrument is currently installed will be accessible on any night.
There is currently no policy on which cassegrain instrument is kept in beam if none of the three are scheduled for science that night.

 

To:

From:

HIRES LRIS LRISp MOSFIRE OSIRIS PCS/SSC
HIRES
YES
no*
no*
no*
YES
YES
LRIS
no*
YES
no
no
no*
no*
LRISp
no*
no
YES
no
no*
no*
MOSFIRE
no*
no
no
YES
no*
no*
OSIRIS
YES
no*
no*
no*
YES
YES
PCS/SSC
YES
no*
no*
no*
YES
YES

Keck 2

 

Deimos, Kcwi, and Nirspec each occupy the same nasmyth position and only one of the three can be in beam at any time. We currently do not have a policy as to which is in beam when none of the three are scheduled for science.
Nirc2, Nires, and PCS/SSC occupy separate nasmyth positions from each other and Deimos/Kcwi/Nirpsec and each can be accessed when the tertiary mirror is installed.
Nirspao (Nirspec moved behind AO) is only available during scheduled Nirspao runs.
ESI is a cassegrain instrument and no other instrument can be accessed when it is in use.

 

To:

From:

DEIMOS ESI KCWI NIRC2 NIRES NIRSPAO NIRSPEC PCS/SSC
DEIMOS
YES
no
no
YES
YES
sometimes
no
YES
ESI
no
YES
no
no
no
no
no
no
KCWI
no
no
YES
YES
YES
sometimes
no
YES
NIRC2
sometimes
no
sometimes
YES
YES
sometimes
sometimes
YES
NIRES
sometimes
no
sometimes
YES
YES
sometimes
sometimes
YES
NIRSPAO
sometimes
no
sometimes
YES
YES
YES
no
YES
NIRSPEC
no
no
no
YES
YES
no
YES
YES
PCS/SSC
sometimes
no
sometimes
YES
YES
sometimes
sometimes
YES

 

 


This page last updated 09-Sept-2017
telescope-scheduling@keck.hawaii.edu