PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-07:58:10
G03     188.7          13.2                1.7 +/-    3.59       4.4 +/-    3.59  0.090 / 0.220
G07     301.6          43.8                4.2 +/-    1.02       5.8 +/-    1.02  0.090 / 0.220
G08     129.3          37.6                5.2 +/-    0.61       7.9 +/-    0.61  0.040 / 0.060
G09     313.1          77.8                3.8 +/-    0.78       3.9 +/-    0.78  0.040 / 0.060
G16     41.7           25.8                1.2 +/-    2.06       2.4 +/-    2.06  0.040 / 0.070
G23     139.3          70.6                4.4 +/-    0.98       4.6 +/-    0.98  0.040 / 0.060
G27     86.5           36.9                3.6 +/-    0.47       5.6 +/-    0.47  0.030 / 0.040
G30     281.1          17.3                4.6 +/-    1.88      10.8 +/-    1.88  0.030 / 0.040