PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/30-03:42:40
G01     305.9          33.9                5.8 +/-    1.78       9.3 +/-    1.78  0.050 / 0.040
G10     106.8          40.3                7.0 +/-    0.62      10.1 +/-    0.62  0.050 / 0.030
G11     278.5          29.5                6.1 +/-    0.86      10.8 +/-    0.86  0.070 / 0.090
G14     3.3            65.7                5.6 +/-    0.88       6.0 +/-    0.88  0.050 / 0.090
G18     117.6          14.4                5.6 +/-    1.92      14.2 +/-    1.92  0.030 / 0.050
G22     309.9          26.6                7.1 +/-    2.27      13.4 +/-    2.27  0.040 / 0.060
G25     77.3           16.2                5.4 +/-    2.32      12.9 +/-    2.32  0.040 / 0.030
G31     168.4          65.2                8.2 +/-    0.67       9.0 +/-    0.67  0.030 / 0.020
G32     34.9           53.4                5.9 +/-    1.36       7.2 +/-    1.36  0.200 / 0.150