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Upcoming (2021A) Instrument Availability and Configuration

The instrument cube on the Cassegrain focus is currently the only point for mounting instruments on LDT.  The instrument cube supports up to 5 instruments at one time; one on the through port, two on the larger side ports (A & C), and two on smaller side ports (B & D).  The simultaneous mounting of instruments supports very fast (~2 minutes) changeover between instruments and allows for multiple instruments to be used in a single night (or simultaneously, as in the case of NIHTS & LMI).

Facility Instruments

Large Monolithic Imager (LMI) – available to users the entire semester.

Near-Infrared High-Throughput Spectrograph (NIHTS) – used with a dichroic, available to users the entire semester.

DeVeny Optical Spectrograph – available to users the entire semester.

Visitor / PI Instruments

EXPRES – expected to be available to users the entire semester; contact D. Fischer if you want to use it.

QWSSI/DSSI/Speckle – instrument availability will depend on status, LDT port availability, and user demand.

RIMAS – not available for general use in 2021A.

Instrument Cube Configuration:

For 2021A (Upcoming Semester):

For January through June:

  • Through port: LMI
  • A (large port): QWSSI (January - April) or RIMAS (commissioning TBD) or POETS or open
  • B (small port): EXPRES (consult with D. Fischer)
  • C (large port): DeVeny
  • D (small port): NIHTS

For 2020B (Current Semester):

For July through December:

  • Through port: LMI 
  • A (large port): DSSI/QWSSI or POETS or open
  • B (small port): EXPRES (consult with D. Fischer)
  • C (large port): DeVeny
  • D (small port): NIHTS






      1. LDT Instrumentation Current & Future  [This page is a behemoth, needs to be broken apart a bit for usability]  Keep cube config here, relegate:
        1. LMI Filter Information
        2. LMI Filter Characterization
        3. DeVeny Grating Characterization
        4. DeVeny Filter Characterization
        1. Instruments (Current and Future)  [This will have the text from the (now) higher page about instruments.  Subpages:]
        2. Past Instruments & Configurations  [Include IGRINS, etc., along with previous cube configs]
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