PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-09:12:30
G03     188.9          14.3                5.3 +/-    4.10      13.4 +/-    4.10  0.110 / 0.330
G07     299.7          42.8                3.9 +/-    1.05       5.5 +/-    1.05  0.160 / 0.270
G08     132.0          36.1                8.3 +/-    1.14      12.9 +/-    1.14  0.040 / 0.080
G09     315.9          75.4                5.3 +/-    1.04       5.5 +/-    1.04  0.050 / 0.070
G16     41.6           27.6                1.2 +/-    0.85       2.2 +/-    0.85  0.060 / 0.080
G23     136.8          71.2                4.8 +/-    0.43       5.0 +/-    0.43  0.050 / 0.080
G27     88.5           36.6                4.3 +/-    0.54       6.7 +/-    0.54  0.030 / 0.050
G30     280.1          16.7                4.7 +/-    2.42      11.2 +/-    2.42  0.030 / 0.050