PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-06:13:00
G01     125.3          13.1                7.9 +/-    1.93      20.7 +/-    1.93  0.090 / 0.090
G07     61.6           68.5                5.2 +/-    0.34       5.6 +/-    0.34  0.100 / 0.100
G08     48.6           36.9                3.9 +/-    0.73       6.0 +/-    0.73  0.030 / 0.020
G09     177.8          33.8                8.4 +/-    1.41      13.7 +/-    1.41  0.030 / 0.020
G11     115.5          35.6                8.8 +/-    0.70      13.8 +/-    0.70  0.120 / 0.250
G13     321.1          11.9                2.6 +/-    9.24       7.0 +/-    9.24  0.130 / 0.200
G17     199.8          18.5                3.8 +/-    3.04       8.8 +/-    3.04  0.060 / 0.070
G28     280.7          54.5                4.7 +/-    3.07       5.6 +/-    3.07  0.080 / 0.050
G30     336.6          62.5                4.8 +/-    0.60       5.3 +/-    0.60  0.220 / 0.270