iTelescope - T68 - One Shot Color - Utah

Location Information

Observatory: Utah Desert Remote Observatory at Great Basin Desert, Beryl Junction, Utah, USA
MPC: U94 

Telescope:  11" (280 mm), F2.2  RASA astrograph + CMOS

Timezone:  UTC Minus 7:00. Daylight savings time is observed

Minimum Target Elevation: 15º all azimuths except noted. 17º elevation for azimuths 60-120º. 


N 37° 44’ 16"    Decimal: 37.7378 North

W 113° 41’ 51"  Decimal: -113.6975 West

Elevation: 1,570 meters / 5150 ft

Operational Notes

Deep Field Color Imaging. FITS and TIF file formats. Binx1 Only.

Raw calibration data can be found at

  • Recommended Maximum Exposure 240 seconds. Limit is set to 240 seconds.
  • No user-initiated dark calibrations can be taken on T68 due to the absence of a mechanical shutter.

Instrument Package

CMOS: ZWO ASI2600 Color

QE: more than 50% Peak

Pixel Size: 3.76 micron

Resolution:  1.25 arcsec/pixel

Sensor:  Frontlit 

Cooling:  Set to -10ºC  

Array: 6248 x 4176

FOV: 2.17 x 1.45 deg

Filters: None - Color

Position Angle: 277º
Bayer Pattern: RGGB


Telescope Optics

OTA: Celestron RASA 11" 280mm

Optical Design: Rowe Ackerman Schmidt Astrograph

Aperture: 279 mm

Focal Length: 620mm

F/Ratio: 2.2

Guiding: via mount model

Mount:  Paramount ME II