PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/10-23:57:30
G07     37.5           69.6                8.6 +/-    0.75       9.1 +/-    0.75  0.170 / 0.190
G08     55.8           44.8                8.5 +/-    0.55      11.5 +/-    0.55  0.030 / 0.050
G09     179.7          42.1                9.8 +/-    1.47      13.8 +/-    1.47  0.050 / 0.080
G11     125.9          31.7               11.6 +/-    2.02      19.6 +/-    2.02  0.050 / 0.080
G23     160.2          11.0               12.0 +/-    3.43      32.6 +/-    3.43  0.180 / 0.290
G27     37.7           10.2                7.4 +/-    2.48      20.4 +/-    2.48  0.090 / 0.330
G28     270.1          50.9                8.6 +/-    0.82      10.7 +/-    0.82  0.180 / 0.290
G30     333.7          60.2                8.2 +/-    0.56       9.3 +/-    0.56  0.200 / 0.420