N01K and N03K
Removed all prior fencing and tall grasses. Reconstructed N01K and N03K with cap blocks as bases which elevated the CRs 1 5/8" in height. Erected 8.6 kV electric fences with two lines of polywire each and energized with solar chargers. Restaked aft guy-wires and replaced all side stakes with duck-bill anchors. Did not redo metrology but rather adjusted prior coordinates in vertical due to the offsets introduced by the cap blocks. There is non-trivial sagging of both bottom panels as this was necessary at this time to reduce oscillations in strong wind conditions. Future maintenance will reinforce the bottom panel and move the forward platform stands out toward the edges. This should reduce the sagging of the bottom panel. When this maintenance is performed, we will redo the full metrology of these CRs.

N02K and N04K
Installed new NISAR corners N02K and N04K. Both these corners have a reinforced bottom panel and due to placement of the front stands, sagging of the bottom panels is greatly reduced. Erected 8.6 kV electric fences with two lines of polywire each and energized with solar chargers. Completed full metrology on these reflectors. Used SWOT Eastern Reference site (SEOT) to perform RTK to N04K with 4 hours of GPS data, and RTK to N02K with 1.5 hours of GPS data.