PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-02:12:40
G01     76.5           33.3                3.5 +/-    0.88       5.8 +/-    0.88  0.090 / 0.320
G07     134.5          35.5                5.2 +/-    1.31       8.1 +/-    1.31  0.080 / 0.390
G11     59.2           35.6                2.0 +/-    0.62       3.1 +/-    0.62  0.030 / 0.060
G13     281.6          37.4                4.6 +/-    1.01       7.0 +/-    1.01  0.030 / 0.050
G15     306.0          14.7                1.4 +/-    2.35       3.4 +/-    2.35  0.040 / 0.040
G17     226.1          63.6                5.4 +/-    0.58       5.9 +/-    0.58  0.050 / 0.040
G19     220.9          38.2                5.1 +/-    1.80       7.7 +/-    1.80  0.070 / 0.090
G28     12.3           60.1                1.7 +/-    0.71       1.9 +/-    0.71  0.060 / 0.080
G30     130.0          61.9                3.7 +/-    0.74       4.2 +/-    0.74  0.060 / 0.100