WIYN 3.5m Observatory

Retired WIYN Instrumentation

Below is a list of instruments that were previously available for use on WIYN. They are listed here for reference only, so that observers can access the documentation if needed. If you have questions about any of the instruments please contact the appropriate Instrument Scientist, if known.

If you are an observer interested in using any of these instruments on WIYN you can find information on how to apply for telescope time by clicking the Observing link to the right.

Detailed information on the WIYN Telescope is available on the WIYN Technical Specifications page.

Densepak

DensePak is a fiber optics bundle used for integral field spectroscopy at the "WIYN" port. It consists of an array of 91 "red" optimized 300 micron diameter fibers and is mounted on the Indiana echelle spectrograph adapter head (WIFOE) which provides a pellical for viewing the fiber array. The fiber cable feeds the Bench Spectrograph that is used with the Hydra multi-object spectrograph and can be used in any of the spectrograph configurations.

Note: DensePak is currently unavailable.

NIRIM

NIRIM is a near-infrared imager based on the NICMOS3 256x256 detectors developed for HST.

Note: NIRIM is currently unavailable.

OPTIC

The Orthogonal Parallel Transfer Imaging Camera consists of 2 Lincoln Lab CCID28 2K x 4K chips mounted side by side in a dewar, so the imager is roughly 4K x 4K altogether. The pixels are 15 µm, and subtend about 0.14".

Note: OPTIC is currently unavailable.

QuOTA

QUOTA (Quad OTA) serves as a prototype camera for ODI. Its functionality will be the same as that of ODI, only on a much smaller scale. Featuring four Orthogonal Transfer Array CCDs, this is a 4k x 4k imager with a 0.1" pixel scale.

Note: QUOTA is currently unavailable.

WTTM Optical Imager

The WIYN Tip-Tilt Module is an optical and near-IR re-imaging system that utilizes fast tip-tilt compensation. As a general rule, WTTM will provide FWHM improvements of 10-15% (R- and I-bands). The f/# for the WTTM is 7.43 which provides a field of view of 3.84 x 4.69 arcminutes at a plate scale of 0.1125 arcseconds per 13.5µm pixel. The WTTM is attached to the WIYN Instrument Adapter System (IAS) at the Nasmyth focus. Changing between the WTTM and the MiniMosaic imager is accomplished in approximately 30 seconds by moving a pick-off mirror.

Note: WTTM is currently only available in conjuction with WHIRC.