PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-08:58:00
G01     318.5          20.1                2.8 +/-    2.97       6.2 +/-    2.97  0.100 / 0.310
G08     256.1          12.6                5.2 +/-    2.19      13.8 +/-    2.19  0.110 / 0.340
G10     83.0           51.1                3.2 +/-    0.48       3.9 +/-    0.48  0.030 / 0.050
G11     301.0          24.1                4.0 +/-    1.59       8.0 +/-    1.59  0.030 / 0.050
G14     303.5          71.5                3.3 +/-    0.45       3.5 +/-    0.45  0.180 / 0.410
G18     301.9          43.2                3.9 +/-    0.81       5.4 +/-    0.81  0.130 / 0.310
G20     107.0          27.7                4.2 +/-    1.88       7.6 +/-    1.88  0.040 / 0.060
G22     302.7          14.7                1.1 +/-    2.28       2.7 +/-    2.28  0.050 / 0.060
G31     175.6          43.5                5.7 +/-    1.09       7.8 +/-    1.09  0.080 / 0.200
G32     0.3            68.8                3.7 +/-    0.73       3.9 +/-    0.73  0.080 / 0.210