KPNO >   Observing >   Telescopes and Instruments

Small NOAO Logo

NOAO logoKPNO title NSF logo

Updated: February 28, 2014

KPNO Telescopes-Instrument Capabilities

The instruments listed below are available for visitor use on KPNO telescopes during the current observing semester, unless noted otherwise.

Proposals for the 2014B (August 2014 - January 2015) observing semester are due March 31, 2014. The list of instruments available for this observing period can be found at This list is revised twice a year and and is available as well in the NOAO Newsletters (March and September issues).

Observers may also wish to review the material provided in two general users guides, one for low-to-moderate resolution optical spectroscopy and one for direct imaging. See also the pages KPNO direct imaging options and KPNO spectroscopic capabilities for additional information.

Visitor instrumentation is welcome at KPNO and can be scheduled if the instrument: a) is unique; b) is required for a project of very high scientific merit; c) conforms to block scheduling; and d) has small impact on KPNO operational and engineering resources.

Instruments currently in use


Detector* Resolution long-slit multi-object capability
Mayall 4-m Telescope

R-C CCD Spectrograph 1 (RCSPL, RCSPM) T2KA/LB1A CCD 300-5000 5.4' single or multi-slit
KOSMOS 2 e2v CCD 2400 up to 10' single or multi-slit
Echelle Spectrograph 1 (ECHLR, ECHLB, ECHUV) T2KA CCD 18,000-65,000 2.0' single
Phoenix 3 InSb (512x1024, 1-5μm) 50,000-70,000 30" single

WIYN 3.5-m Telescope

Hydra + Bench spectrograph 4 (HYDRB, HYDRR) STA1 CCD 700-22,000 NA ~82 fibers
SparsePak 5 (SPSPKB, SPSPKR) STA1 CCD 400-13,000 IFU ~82 fibers
GradPak 10 STA1 CCD ~400-13,000 IFU 90 fibers
HexPak 10 STA1 CCD ~400-13,000 IFU 102 fibers

1PIs can propose for RC Spec in 14B, but projects which can be moved to KOSMOS will be. T2KA is default CCD for RCSP and ECH. T2KB now serves as T2KA's backup. LB1A may be requested for RCSP if appropriate.
2KOSMOS is offered in both single-slit and multi-object mode. See for more information.
3See before preparing the proposal.
4One degree field with two fiber bundles of ∼ 85 fibers each. "Blue" (3") and "Red" (2") fibers.
5Integral Field Unit, 80" x 80" field, 5" fibers, graduated spacing.


Detector Spectral Range scale
Mayall 4-m Telescope

CCD MOSAIC 1.1 (MOSA) 8K x 8K 3500-9700Å 0.26 35.4'
NEWFIRM 6 InSb (mosaic, 4, 2048 x 2048) 1-2.3μm 0.4 28.0'

WIYN 3.5-m Telescope

pODI 7 12Kx12K central + 4 (4Kx4K) distributed 3600-9500Å 0.11 24'x24' central
VIRGO HgCdTe (2048x2048)
0.10 3.3'

WIYN 0.9-m Telescope

HDI 9 4K x 4K 3000-9700Å 0.43 29.2'

6Permanently installed filters include J, H, Ks. See for further information and for filter availability, and policy on filter changes.
7pODI may be available at the beginning of the 14B semester, before removal for focal plane upgrade. Check the WIYN status webpage,, before proposing.
8WHIRC was built by Dr. Margaret Meixner (STScI) and collaborators. Potential users requiring WTTM are advised to contact KPNO support staff for details on its current status before making a proposal and for any updates.
9HDI was successfully commissioned in 2013B.
10GradPak and HexPak are new IFUs containing multiple fiber diameters in the same head, designed to sample different spatial scales within the same observation. They are offered in 14B on a shared-risk basis, subject to approval of the PI. Proposers should check the WIYN status page for contact information before proposing.

NSF logo

NOAO is operated by the Association of Universities for Research in Astronomy (AURA), Inc. under cooperative agreement with the National Science Foundation.

AURA, Inc. logo

KPNO >   Observing >   Telescopes and Instruments

Small NOAO Logo