Palomar 200-inch Telescope:

Detector Chip:

• Rockwell, 1024x1024 HAWAII HgCdTe
• 1 to 2.5 µm
• Read noise < 10 electrons

Wavelength Range...Limiting Spatial Resolution:

• J-band (1.25 µm)...0.052 arcsec is 200-inch diffraction limit
• H-band (1.65 µm)...0.068 arcsec is 200-inch diffraction limit
• K-band (2.22 µm)...0.092 arcsec is 200-inch diffraction limit

Imaging Scale:

• 0.040 arcsec/pixel
• 0.025 arcsec/pixel

Filters:

• J, H, Hcont, K, Kcont, Ks
• assorted narrow-band (~1%); Br Gamma, CH4 short, CH4 long, FeII, ND 1%, ND 0.1%

Resolving Power (Grism mode, 0.040 arcsec/pixel):

• 1500 (spanning any one of J or H or K bands) with narrow slit

Slits:

• 0.13 arcsec
• 0.26 arcsec
• 0.52 arcsec

Coronographic Observations:

• Focal-plane (circular occulting) masks; 0.41 arcsec, 0.91 arcsec
• Pupil-plane stops