PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/04-23:27:40
G10     251.3          27.4               13.2 +/-    1.87      24.5 +/-    1.87  0.180 / 0.720
G13     52.7           29.3                9.5 +/-    0.99      16.8 +/-    0.99  0.210 / 0.850
G15     89.8           58.9               11.3 +/-    0.59      13.0 +/-    0.59  0.120 / 0.120
G16     293.3          15.9                8.3 +/-    3.62      20.1 +/-    3.62  0.100 / 0.170
G20     257.4          27.5                7.7 +/-    0.99      14.2 +/-    0.99  0.040 / 0.050
G21     333.3          60.0               10.1 +/-    0.43      11.5 +/-    0.43  0.040 / 0.060
G26     265.5          15.4               12.1 +/-    3.75      29.8 +/-    3.75  0.040 / 0.060
G29     165.5          50.2               11.8 +/-    0.87      14.9 +/-    0.87  0.040 / 0.080