Telescope:

• Focal Length: 480 inches
• Focal ratio: f/16
• Scale: 16.92 arcsec/mm

Camera:

• Field of View(FOV): 8.7 arcmin square(1.215 inch square linear)
• Plate Scale: 0.5098 arcsec/pixel
• Field Curvature: < 50µm across the FOV
• Distortion: < 0.1 pixel on 90% of the field, < 0.5 pixels at the corners
• Limiting Magnitude (10σ in 10 min. on source): 19.0 (J), 18.0 (H) and 17.0 (K_s)
• Astrometric Accuracy: Picture(soon)
• Limiting Magnitude in Spectroscopic Mode: Not installed yet
• Limiting Magnitude in Polarimetric Mode: Not measured

Detector:

• Spectral response: 0.85 - 2.5 µm
• Pixel size: 18.5 µm
• Gain: 4.6e^-/DN
• Read Noise: 17e^-rms
• Dark Current: very low, not detected
• Operability: > 99%
• Well Capacity: ~ 10⁵e^-
• QE: > 60%

Filter Wheels:

• Filter Wheel 1: J, H, K_s, H₂, Br-γ, Y(not installed yet)
• Filter Wheel 2: K, Pa-β, Fe-II, Polarizer-1, Polarizer-2, Grism-1(not installed yet), Grism-2(proposed)

Staff Contact:

• Mike Skrutskie (mfs4n@virginia.edu)
• John Wilson (jcw6z@virginia.edu)