PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/13-00:42:40
G07     327.2          55.6                4.9 +/-    0.36       5.8 +/-    0.36  0.130 / 0.200
G08     107.0          50.6                7.9 +/-    0.67       9.9 +/-    0.67  0.190 / 0.170
G09     204.4          78.3                6.7 +/-    0.33       6.8 +/-    0.33  0.040 / 0.040
G11     149.5          10.0               -5.5 +/-    8.55     -15.3 +/-    8.55  0.040 / 0.050
G16     45.4           12.5                3.4 +/-    1.78       9.1 +/-    1.78  0.130 / 0.230
G23     154.0          45.9                8.9 +/-    0.84      11.8 +/-    0.84  0.110 / 0.210
G27     58.3           32.9                4.1 +/-    0.93       6.8 +/-    0.93  0.030 / 0.040
G28     234.5          27.0                4.7 +/-    2.04       8.8 +/-    2.04  0.040 / 0.040
G30     300.4          34.8                4.6 +/-    1.59       7.2 +/-    1.59  0.040 / 0.070