PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/25-01:58:10
G03     257.0          69.6                3.5 +/-    0.67       3.7 +/-    0.67  0.030 / 0.050
G09     302.2          19.2                2.6 +/-    1.72       5.9 +/-    1.72  0.030 / 0.040
G14     95.8           17.4                4.7 +/-    1.42      11.0 +/-    1.42  0.120 / 0.380
G16     132.9          55.2                6.6 +/-    0.49       7.9 +/-    0.49  0.130 / 0.390
G22     201.5          61.0                7.7 +/-    1.72       8.7 +/-    1.72  0.040 / 0.050
G23     314.3          43.8                3.5 +/-    1.43       4.9 +/-    1.43  0.050 / 0.070
G26     77.5           53.6                2.0 +/-    0.51       2.5 +/-    0.51  0.050 / 0.080
G31     49.7           24.1                1.8 +/-    1.43       3.5 +/-    1.43  0.050 / 0.080