PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/12-02:12:40
G01     126.4          12.3                7.4 +/-    2.70      19.6 +/-    2.70  0.110 / 0.060
G07     55.4           69.3                4.3 +/-    0.60       4.6 +/-    0.60  0.070 / 0.070
G08     50.3           39.5                4.0 +/-    0.76       5.9 +/-    0.76  0.160 / 0.170
G09     178.8          36.0                5.6 +/-    0.73       8.8 +/-    0.73  0.130 / 0.110
G11     119.1          35.1                6.8 +/-    1.65      10.8 +/-    1.65  0.030 / 0.030
G13     321.3          11.3               -3.7 +/-   13.12     -10.0 +/-   13.12  0.030 / 0.030
G17     200.2          15.8                5.7 +/-    1.76      13.9 +/-    1.76  0.050 / 0.050
G28     278.7          53.9                4.3 +/-    2.91       5.2 +/-    2.91  0.070 / 0.050
G30     338.7          63.4                2.8 +/-    0.63       3.1 +/-    0.63  0.080 / 0.080