PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/25-02:28:10
G01     227.4          18.2                9.1 +/-    2.44      21.1 +/-    2.44  0.130 / 0.310
G03     293.2          65.1                3.6 +/-    0.64       3.9 +/-    0.64  0.180 / 0.360
G14     85.9           24.2                5.0 +/-    0.65      10.0 +/-    0.65  0.030 / 0.040
G16     154.2          40.9                8.5 +/-    1.28      12.2 +/-    1.28  0.030 / 0.030
G22     224.1          72.4                5.3 +/-    0.77       5.6 +/-    0.77  0.050 / 0.100
G23     305.2          34.8                6.3 +/-    0.67      10.0 +/-    0.67  0.070 / 0.090
G26     109.0          54.7                6.1 +/-    0.71       7.2 +/-    0.71  0.040 / 0.080
G31     43.0           38.1                2.4 +/-    0.59       3.6 +/-    0.59  0.040 / 0.070