In 2006 a wide field near-infrared camera was commissioned on the 1.3m telescope. The camera consists of a 1024x1024 HgCdTe Focal Plane Array, with 18.5x18.5μm pixel size, made by Rockwell Science Center, Inc. The optical system, displayed here, is a modified Offner design with a resulting imaging resolution of 0.38arcsecs per pixel, and a 6.5arcmin x 6.5arcmin field of view. The picture below displays the dewar of the camera mounted on the 1.3m telescope, as well as the rack of the external electronics box.
The system is sensitive in the spectral range between 1.0 – 2.4 μm and has two filter wheels. A set of broadband filters (J 1.250μm, H 1.635μm, Ks 2.150μm) is mounted on Filter Wheel 2, and a set of narrowband filters ([FeII] 1.644μm, H2(1-0) 2.122μm, H2(1-0 off) 2.144μm, Br-γ 2.166μm, CO(2-0 bh) 2.295μm) is on Filter Wheel 1.
The details of the near-IR filters are the following
Center Wavelength/ FWHM
|[FeII]||1644/17 nm||Filter Wheel 1|
|H2(1-0)||2122/22 nm||Filter Wheel 1|
|H2(1-0 off)||2144/22 nm||Filter Wheel 1|
|Brγ||2166/22 nm||Filter Wheel 1|
|CO(2-0 bh)||2295/231 nm||Filter Wheel 1|
|J||1250/160 nm||Filter Wheel 2|
|H||1635/290 nm||Filter Wheel 2|
|Ks||2150/320 nm||Filter Wheel 2|