Elevation: 2780 m = 9121 ft. Latitude: 32° 26' 32.26" N (32.442294) Longitude: 110° 47' 20.46" W (-110.789017) Time Zone: Mountain Standard Time (UTC-07:00) Primary Mirror Diameter: 0.81 m = 32 inches f/7 Cassegrain focus Plate Scale: 27.5 microns/arcsec = 36.4 arcsec/mm (nominal) Typical Seeing: 1-2" Focuser: 0.2668 microns per step NCFZ: 33.5 micron, 151 steps
Motor: Kollmorgen C042A-13-3305 Motor Wheel Size: ~2.9022in (calculated) Axis Wheel Size: 36.02in (laser measured) Motor Counts per Rev: 13,014,364 (laser calibrated) Encoder Tape: Renishaw 20μm pitch scale tape Readhead: Renishaw RGH25 Interpolator: Renishaw RGF1000H250A Encoder Wheel Size: 36.001in (laser measured) Encoder Counts per Rev: 143,637,606 (calculated)
Motor: Kollmorgen C042A-13-3305 Motor Wheel Size: ~2in Axis Wheel Size: 23.990in (laser measured) Motor Counts per Rev: ~12,500,000 Encoder Tape: RESM20USA300 Readhead: Renishaw RGH25 (assumed) Interpolator: Renishaw Si-HN-4000-40-0-FN-003-3 (A-9572-1501) Dual Interface: Renishaw DSi-QML-04 Encoder Wheel: 300mm Encoder Counts per Rev: 188,800,000
NOAA Mt. Lemmon Forecast
Astrospheric Forecast
Clear Sky Chart for Mt. Lemmon
Atmospheric Sciences Arizona IR
Atmospheric Sciences Arizona Radar