PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-13:27:50
G01     126.4          12.2                6.2 +/-    5.03      16.5 +/-    5.03  0.030 / 0.050
G07     55.0           69.5                6.5 +/-    0.55       6.9 +/-    0.55  0.030 / 0.040
G08     49.6           38.5                5.2 +/-    0.90       7.7 +/-    0.90  0.060 / 0.100
G09     176.8          33.7                7.1 +/-    2.29      11.6 +/-    2.29  0.060 / 0.120
G11     116.8          35.8                7.1 +/-    0.52      11.1 +/-    0.52  0.030 / 0.030
G13     320.9          12.4                5.6 +/-    3.75      14.9 +/-    3.75  0.030 / 0.030
G17     200.0          15.6                7.0 +/-    3.86      17.2 +/-    3.86  0.090 / 0.360
G18     102.8          17.0                6.5 +/-    1.04      15.3 +/-    1.04  0.090 / 0.400
G28     277.3          53.2                7.3 +/-    0.85       8.8 +/-    0.85  0.130 / 0.400
G30     332.8          60.5                5.6 +/-    0.56       6.4 +/-    0.56  0.100 / 0.390