PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/06-12:58:00
G01     72.6           32.5                4.5 +/-    0.63       7.4 +/-    0.63  0.040 / 0.070
G07     135.5          30.4                5.5 +/-    0.46       9.5 +/-    0.46  0.040 / 0.080
G11     55.4           33.4                3.5 +/-    0.56       5.6 +/-    0.56  0.050 / 0.080
G13     276.6          38.8                6.3 +/-    0.97       9.3 +/-    0.97  0.040 / 0.090
G15     305.0          14.5                1.4 +/-    3.18       3.6 +/-    3.18  0.060 / 0.110
G17     226.6          62.4                7.3 +/-    0.73       8.1 +/-    0.73  0.060 / 0.120
G18     50.3           19.0                3.1 +/-    1.46       7.1 +/-    1.46  0.090 / 0.190
G19     221.3          41.2                5.6 +/-    0.96       7.9 +/-    0.96  0.080 / 0.230
G28     1.5            61.3                3.4 +/-    0.62       3.8 +/-    0.62  0.060 / 0.130
G30     132.8          64.2                5.1 +/-    0.84       5.6 +/-    0.84  0.050 / 0.120