PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-05:12:40
G01     305.8          34.0                4.8 +/-    1.84       7.8 +/-    1.84  0.030 / 0.040
G10     106.8          40.3                6.2 +/-    0.50       8.9 +/-    0.50  0.030 / 0.030
G11     278.1          29.7                6.3 +/-    0.86      11.1 +/-    0.86  0.050 / 0.050
G14     3.5            65.6                3.9 +/-    0.80       4.3 +/-    0.80  0.050 / 0.040
G18     117.5          15.0                5.5 +/-    2.59      13.8 +/-    2.59  0.070 / 0.120
G22     310.0          27.2                4.9 +/-    1.72       9.2 +/-    1.72  0.050 / 0.100
G25     76.2           16.0                6.1 +/-    2.21      14.7 +/-    2.21  0.060 / 0.100
G31     166.5          65.9                6.1 +/-    0.34       6.6 +/-    0.34  0.060 / 0.090
G32     35.8           52.7                4.6 +/-    1.28       5.6 +/-    1.28  0.080 / 0.140