SOK502 NONE Sokkia SK520 L1/L2 GPS antenna NGS ( 3) 11/03/25 -0.5 -1.7 41.8 0.0 -2.3 -3.3 -3.5 -3.2 -2.7 -2.2 -1.8 -1.4 -1.3 -1.3 -1.3 -1.3 -1.1 -0.5 1.2 4.4 0.0 0.0 0.3 -2.3 59.3 0.0 -0.8 -1.6 -2.5 -3.2 -3.8 -4.2 -4.5 -4.5 -4.3 -4.0 -3.5 -2.8 -2.4 -2.4 -3.1 -4.4 0.0 0.0