N02A was removed after the 2021-2022 winter because of significant bowing of its sides and bottom. It was re-monumented 1m East and 35m South of its original location. Two additional front legs were added to better secure the CR. It is now also supported by five 140 lbs concrete blocks. The wooden stands are anchor bolted into the blocks and 24” stakes are also anchor bolted into the blocks to keep them aligned. N02A was also realigned for the ascending orbit of a left-looking SAR sensor. 17 hours of GNSS data was obtained and it is believed its location is good to 3 CMS.
Re-deployment of 2.8 m CR N02A, October 10, 2022
Mostly East facing CR N02A re-deployed on 20x20x4 inch concrete pads.
N32A
N32A overturned sometime between June and August of 2022. It was re-monumented on its ring stand and realigned for the descending orbit of a left-looking SAR sensor. At this time, no precise location of its vertex is available. The ring stand was placed approximately near its original location, as such, its location is likely good to a few meters of its true location.
Re-deployment of CR N32A, October 11, 2022
Mostly West facing CR N32A re-deployed on its ring stand. This is 3.0 meter CR.
N01A
N01A was in good condition and was not moved or realigned. It's tilt had increased however from 15.64 to 17.40 degrees. It' s azimuth was measured at 168.0 degrees (was 169.5 degrees). This mostly West facing 2.8 m NISAR CR will be rotated to 213 degrees azimuth and remeasured before NISAR launch.
2.8 m CR N01A, October 12, 2022
Mostly West facing CR N01A was in good condition over 1 year after installation.
N31A
N31A was measured in April, 2022. It' s coordinates are now posted at this time. This mostly East facing CR will be realigned for the ascending orbit of a left-looking SAR sensor remeasured before NISAR launch.