PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-02:13:00
G01     294.3          39.4                7.5 +/-    0.90      11.0 +/-    0.90  0.050 / 0.110
G03     310.8          13.8                4.4 +/-    0.96      11.3 +/-    0.96  0.060 / 0.100
G10     117.6          30.4                7.4 +/-    2.02      12.9 +/-    2.02  0.080 / 0.200
G11     266.9          26.6                8.7 +/-    1.69      16.3 +/-    1.69  0.090 / 0.200
G14     18.5           60.9                6.6 +/-    0.39       7.5 +/-    0.39  0.080 / 0.120
G18     255.4          48.6                9.2 +/-    0.78      11.8 +/-    0.78  0.070 / 0.100
G22     313.3          35.5                6.3 +/-    1.49       9.9 +/-    1.49  0.070 / 0.090
G25     67.7           18.0                3.9 +/-    1.16       9.1 +/-    1.16  0.080 / 0.090
G31     137.2          77.3                8.4 +/-    0.68       8.5 +/-    0.68  0.040 / 0.050
G32     49.4           42.8                5.5 +/-    0.36       7.7 +/-    0.36  0.040 / 0.060