PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/01-04:57:40
G02     201.9          34.7               10.9 +/-    1.07      17.4 +/-    1.07  0.050 / 0.140
G06     168.6          64.9                9.7 +/-    0.44      10.6 +/-    0.44  0.060 / 0.130
G12     306.2          12.5                4.9 +/-    1.78      12.8 +/-    1.78  0.340 / 0.330
G17     33.5           51.3                4.8 +/-    1.20       5.9 +/-    1.20  0.170 / 0.190
G19     359.0          66.0                4.5 +/-    0.48       4.9 +/-    0.48  0.060 / 0.080
G24     300.8          36.5                5.0 +/-    1.66       7.8 +/-    1.66  0.090 / 0.070
G28     101.2          31.8                7.1 +/-    1.10      12.0 +/-    1.10  0.030 / 0.050