PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-09:57:20
G02     229.3          72.7                6.3 +/-    0.61       6.6 +/-    0.61  0.140 / 0.400
G05     174.3          11.2               -4.6 +/-   11.54     -12.4 +/-   11.54  0.200 / 0.370
G06     43.0           69.6                4.7 +/-    0.63       5.0 +/-    0.63  0.050 / 0.080
G12     320.8          45.0                5.5 +/-    0.56       7.4 +/-    0.56  0.040 / 0.090
G17     67.4           24.6                3.3 +/-    1.82       6.5 +/-    1.82  0.040 / 0.050
G19     53.0           40.9                3.4 +/-    0.69       4.8 +/-    0.69  0.040 / 0.040
G24     253.0          37.7                6.1 +/-    2.37       9.2 +/-    2.37  0.030 / 0.020