PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/31-06:27:30
G03     215.6          57.6                5.2 +/-    0.84       6.0 +/-    0.84  0.060 / 0.060
G07     258.4          16.5                5.4 +/-    3.76      12.9 +/-    3.76  0.080 / 0.090
G09     312.4          32.7                2.7 +/-    1.18       4.4 +/-    1.18  0.310 / 0.220
G16     84.9           62.8                5.6 +/-    1.10       6.2 +/-    1.10  0.100 / 0.150
G22     189.9          41.3                5.5 +/-    0.80       7.8 +/-    0.80  0.190 / 0.390
G23     330.1          60.2                4.1 +/-    0.65       4.6 +/-    0.65  0.170 / 0.240
G26     51.0           39.9                3.1 +/-    0.61       4.5 +/-    0.61  0.030 / 0.040
G27     133.3          11.5                5.2 +/-    4.89      13.9 +/-    4.89  0.030 / 0.040