PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-11:57:50
G07     308.3          47.1                5.5 +/-    1.45       7.1 +/-    1.45  0.090 / 0.190
G08     126.1          41.9                6.0 +/-    0.50       8.4 +/-    0.50  0.100 / 0.160
G09     293.4          81.7                4.0 +/-    0.71       4.0 +/-    0.71  0.050 / 0.080
G16     42.3           20.8                2.4 +/-    0.76       5.3 +/-    0.76  0.050 / 0.070
G23     145.1          60.6                6.5 +/-    1.38       7.4 +/-    1.38  0.190 / 0.650
G27     77.5           37.3                3.5 +/-    0.79       5.3 +/-    0.79  0.140 / 0.550
G28     224.8          13.7                5.6 +/-    2.47      14.3 +/-    2.47  0.040 / 0.090
G30     286.6          22.3                6.2 +/-    0.91      12.8 +/-    0.91  0.040 / 0.070