Observing at WMKO

Instruments Available for Semester 2017A

For detailed information about the instruments, please check the Instruments Home Page
a Resolving Power vs. Wavelength comparison of Keck instruments, please check this Instrument Comparison graph.

Keck 1 Instruments are:

        HIRESb (blue x-disperser)
        HIRESr (red x-disperser)
        LRIS-ADC (red and blue, with ADC)
        LRISp-ADC (polarimeter, with ADC)
        OSIRIS-NGS (see OSIRIS restrictions below)
        OSIRIS-LGS (see OSIRIS restrictions below)
        (note OSIRIS-NGS/LGS is available with the the use of TRICK)

Keck 2 Instruments are:

        ESIi (ESI with the Integral Field Unit)
        NIRSPEC (without AO see restrictions below)
        NIRSPAO-NGS (NIRSPEC with Natural Guide Star AO, see restrictions below)
        NIRSPAO-LGS (NIRSPEC with Laser Guide Star AO; see restrictions below)
        (note NIRC2-NGS/LGS is available with use of the vector vortex coronagraph)


Subaru Time Exchange Instruments are:

FOCAS, HDS, MOIRCS (shared risk), IRCS (with NGS/LGSAO with 188 elements), COMICS, and Hyper Suprime-Cam (limited). See below for limitations.

Telescope Limits

Please note that Keck I and Keck II have different eastern and western telescope limits. This affects the times objects will be available for observing. Objects can be acquired earlier on Keck II and followed later on Keck I.

Special Notes for Semester 2017A:

Visitor Instruments: WMKO will not support any visitor instruments during semester 2017A.

OSIRIS will be unavailable for science through May 1, 2017 for the upgrade to the imager detector.

NIRSPEC: Nirspec will be unavailable for 4 weeks to conduct a routine servicing mission to remove ice from the dewar window. We will take into account the observing pressure when scheduling the service misssion.

TDA: Observers now have the ability to propose both cadence and ToO programs using the cover sheet. Policies related to Target of Opportunity or Time Domain Astronomy proposals can be found at Too Policies and Cadence Policies. For Semester 2017A, four Keck partners (UC, Caltech, UH, and NASA) have agreed that TAC-approved ToO (TDA) projects will be able to interrupt observers at any of the four institutions, to increase the utility of the ToO process.

FOCAS, HDS, MOIRCS (shared risk), IRCS (with NGS/LGSAO with 188 elements), COMICS, and Hyper Suprime-Cam(limitedavailability) will be available. Please check the Subaru web site http://www.subarutelescope.org/Observing/index.html for detailed descriptions of these instruments, and the web site http://www.naoj.org/Observing/Proposals/Submit/call.html for instrument restrictions, particularly for HSC.The SUBARU-KECK exchange will continue much the same as past semesters although somewhat more flexible with regard to the number of nights available for exchange. The number will be determined based on the demand from each community. Neither Keck nor Subaru will support Target of Opportunity (ToO) observations during the exchanged nights. All observations will be executed in "classical" observing mode. During the 2017A semester, there will be at most six observing runs with HSC allocated in dark to dark-gray time.

LGS-AO: A detailed set of guidelines for LGS-AO nights and information on the capabilities of the systems may be found on the LGS-AO page. Backup programs for LGS proposals are essential. Backup programs for LGS on Keck II may be either NGS programs or non-AO (seeing limited) NIRSPEC. On Keck I, eiterh NGS-OSIRIS and non-AO HIRES may serve as a backup.

NIRSPAO is scheduled in campaign mode given limited demand for this configuration. If there are insufficient requests for its use, NIRSPAO may not be scheduled in a given semester.

KOA (Keck Observatory Archive): Data from all instruments will be archived in the Keck Observatory Archive (KOA). The default proprietary period for all data is 18 months. If observers desire a different proprietary period they may request this through the Keck coversheet. Please see the KOA homepage for information on the archive. Please also see the KOA proprietary period policy.

For detailed information about the instruments, please check the Instruments Home Page

  (further observing information)

This page last updated 5 February 2016.