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Calibration Alaska Maintenace

February 2024


N01A
In March, after the declination was properly set to 16°, the Azimuth was at 204°, still a 10° discrepancy, 9° with the -1° bias.

NISAR N01A elevated at 15 degrees, West facing
 
 
NISAR N01A elevated at 15 degrees, West facing
 
 
NISAR N01A elevated at 15 degrees, West facing
 
 
NISAR N01A elevated at 15 degrees, West facing
 
 
NISAR N01A elevated at 15 degrees, West facing

N02A
In March, we found an azimuth of 322.5° and expected 320.4°, a discrepancy of 2.1° or 1.1° with the -1° bias. The inclination was 15.8°. One post is leaning over a bit. Ron and I talked on the phone about replacing this CR with an ASF Ring-based Reflector after things thaw out and dry up.

NISAR N02A elevated at 15 degrees, West facing
 
 
NISAR N02A elevated at 15 degrees, West facing
 
 
NISAR N02A elevated at 15 degrees, West facing
 
 
NISAR N02A elevated at 15 degrees, West facing
 
 
NISAR N02A elevated at 15 degrees, West facing

N03A
In March, we adjusted the azimuth to 330° with the declination set right at 16°. The inclination was 18.0°. We found the condition of the reflector to be in great shape with no other adjustments needed.

NISAR N03A elevated at 15 degrees, West facing
 
 
NISAR N03A elevated at 15 degrees, West facing
 
 
NISAR N03A elevated at 15 degrees, West facing
 
 
NISAR N03A elevated at 15 degrees, West facing

N31A
During our March visit, we moved the AZ to 330° with the declination set right at 16°. The inclination was 17.1°. The reflector was in great shape with no other adjustments needed.

NISAR N31A elevated at 15 degrees, West facing
NISAR N31A elevated at 15 degrees, West facing
 
 
NISAR N31A elevated at 15 degrees, West facing
 
 
NISAR N31A elevated at 15 degrees, West facing

N32A
Two turnbuckles needed a bit of tightening. The rest of the turnbuckles securing the CR were taught and didn’t need adjusting. The azimuth reading was 215° and was expected to be 214°, a 1-degree discrepancy, but spot on with the -1° bias. The inclination was 17.7°. This reflector is holding up well as long as we visit it monthly to check the turnbuckles.

NISAR N32A elevated at 15 degrees, West facing
NISAR N32A elevated at 15 degrees, West facing
 
 
NISAR N32A elevated at 15 degrees, West facing
 
 
NISAR N32A elevated at 15 degrees, West facing
 
 
NISAR N32A elevated at 15 degrees, West facing