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Aerosol Robotic Network (AERONET)
AEROSOL OPTICAL DEPTH AEROSOL INVERSIONS SOLAR FLUX OCEAN COLOR Maritime Aerosol Network
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TROUBLESHOOTING - GOSUN
 
 

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When in MANUAL mode the sensor head should point to the sun when the GOSUN option is selected. The proper alignment is shown in the Cimel Set-up section of this website. [Setup] If the GOSUN alignment is off:

  • Verify the Cimel time is in UTC time and accurate to +/- 10 seconds (One can acquire accurate time from the web link on this website [UTC time])
  • Verify the Latitude Longitude parameters are correct for the given location (Correct parameters will be provided or can be calculated with the program on this website [Lat params])
  • Verify the MANUALLY parked Cimel sensor head is level and the zenith nut under the central bubble level is firmly tight (see Cimel installation images)
  • Verify the robot itself is level (see Cimel installation images)
  • Verify the sensor head is attached correctly to the robot arm--sometimes it is attached correctly except for being rotated 180 degrees.

Correctly Attached Sensor Head
Correctly attached

Incorrectly Attached Sensor Head
Reversed
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Last Updated: December 04, 2007