PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-05:13:00
G01     308.0          32.7                0.0 +/-   11.18       0.0 +/-   11.18  0.060 / 0.160
G10     105.2          40.5                6.7 +/-    1.11       9.6 +/-    1.11  0.070 / 0.130
G11     282.3          28.2                3.6 +/-    9.30       6.5 +/-    9.30  0.040 / 0.070
G14     349.1          67.9                4.4 +/-    0.45       4.7 +/-    0.45  0.040 / 0.060
G18     278.8          49.6                8.5 +/-    1.01      10.7 +/-    1.01  0.040 / 0.050
G20     116.3          32.4                3.0 +/-    8.24       5.0 +/-    8.24  0.040 / 0.060
G22     309.6          25.6                2.1 +/-    7.56       4.1 +/-    7.56  0.080 / 0.190
G25     82.7           16.2                4.0 +/-    1.73       9.8 +/-    1.73  0.090 / 0.180
G31     162.7          65.8                1.1 +/-    9.21       1.2 +/-    9.21  0.080 / 0.110
G32     37.2           51.6                5.5 +/-    0.91       6.8 +/-    0.91  0.080 / 0.120