PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-09:58:00
G01     57.3           28.9                2.1 +/-    0.91       3.8 +/-    0.91  0.030 / 0.040
G07     142.3          19.7                6.7 +/-    1.31      14.8 +/-    1.31  0.030 / 0.050
G11     48.0           24.7                3.0 +/-    1.50       5.9 +/-    1.50  0.090 / 0.210
G13     259.5          35.7                6.5 +/-    0.87      10.2 +/-    0.87  0.110 / 0.180
G15     292.7          16.2                2.6 +/-    1.43       6.2 +/-    1.43  0.060 / 0.130
G17     257.7          75.8                7.6 +/-    0.51       7.8 +/-    0.51  0.060 / 0.160
G18     40.9           11.7                2.0 +/-    1.73       5.4 +/-    1.73  0.060 / 0.100
G19     233.4          54.0                7.6 +/-    1.74       9.2 +/-    1.74  0.050 / 0.090
G28     24.8           59.7                4.6 +/-    0.68       5.3 +/-    0.68  0.230 / 0.290
G30     145.2          53.1                7.5 +/-    0.83       9.1 +/-    0.83  0.190 / 0.430