PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-02:12:40
G01     78.8           33.3                4.5 +/-    0.58       7.5 +/-    0.58  0.020 / 0.050
G07     133.1          37.2                4.5 +/-    0.55       6.8 +/-    0.55  0.040 / 0.050
G11     60.9           36.6                3.3 +/-    0.63       5.1 +/-    0.63  0.040 / 0.060
G13     284.1          37.3                5.8 +/-    0.74       8.8 +/-    0.74  0.030 / 0.050
G15     307.6          14.1                2.8 +/-    1.73       7.2 +/-    1.73  0.080 / 0.190
G17     223.7          61.8                7.5 +/-    0.84       8.3 +/-    0.84  0.090 / 0.220
G19     219.7          36.4                6.9 +/-    2.25      10.7 +/-    2.25  0.050 / 0.090
G28     8.8            60.4                2.5 +/-    0.46       2.8 +/-    0.46  0.050 / 0.060
G30     127.5          63.7                5.1 +/-    0.70       5.6 +/-    0.70  0.040 / 0.110