PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-14:58:00
G05     49.0           16.8                5.1 +/-    2.23      12.2 +/-    2.23  0.080 / 0.210
G10     236.6          12.1                4.6 +/-   16.80      12.2 +/-   16.80  0.070 / 0.190
G13     76.3           37.1                5.8 +/-    0.73       8.8 +/-    0.73  0.040 / 0.030
G15     120.7          52.7                7.5 +/-    0.70       9.2 +/-    0.70  0.040 / 0.030
G18     246.8          44.5                9.9 +/-    2.67      13.4 +/-    2.67  0.100 / 0.130
G20     24.2           68.3                7.6 +/-    0.61       8.1 +/-    0.61  0.090 / 0.170
G21     318.4          51.6                7.3 +/-    0.78       9.0 +/-    0.78  0.060 / 0.070
G26     289.4          19.6                6.1 +/-    1.29      13.5 +/-    1.29  0.040 / 0.060
G29     153.4          66.8                9.4 +/-    0.48      10.1 +/-    0.48  0.040 / 0.050