PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-04:12:50
G03     228.4          64.8                5.7 +/-    0.59       6.2 +/-    0.59  0.040 / 0.090
G07     251.8          11.4                3.4 +/-    2.92       9.1 +/-    2.92  0.040 / 0.060
G09     308.7          28.0                0.9 +/-    0.90       1.6 +/-    0.90  0.110 / 0.510
G14     104.0          11.2                2.9 +/-    2.18       8.0 +/-    2.18  0.100 / 0.590
G16     111.2          62.2                5.3 +/-    0.88       5.9 +/-    0.88  0.080 / 0.480
G22     193.2          50.1                7.4 +/-    1.10       9.3 +/-    1.10  0.080 / 0.430
G23     322.7          52.6                5.4 +/-    0.88       6.7 +/-    0.88  0.060 / 0.060
G26     60.8           47.9                3.0 +/-    0.41       3.9 +/-    0.41  0.050 / 0.070
G31     55.3           15.2                2.5 +/-    1.73       6.3 +/-    1.73  0.040 / 0.050