PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-13:58:10
G03     192.0          24.4                9.0 +/-    2.27      17.9 +/-    2.27  0.090 / 0.130
G07     286.1          34.8               10.6 +/-    1.61      16.8 +/-    1.61  0.100 / 0.150
G08     146.0          24.0                9.6 +/-    2.52      19.1 +/-    2.52  0.090 / 0.090
G09     320.9          59.1               10.0 +/-    0.75      11.5 +/-    0.75  0.090 / 0.110
G16     43.8           40.7                8.2 +/-    0.80      11.8 +/-    0.80  0.040 / 0.070
G23     105.2          78.8               10.2 +/-    0.56      10.4 +/-    0.56  0.060 / 0.080
G26     43.1           13.0                7.4 +/-    2.25      19.4 +/-    2.25  0.040 / 0.030
G27     104.0          32.0                9.7 +/-    1.03      16.2 +/-    1.03  0.030 / 0.030