PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/28-10:27:50
G01     69.4           32.8                4.9 +/-    0.99       8.1 +/-    0.99  0.030 / 0.040
G07     138.0          29.1                5.2 +/-    1.43       9.3 +/-    1.43  0.040 / 0.030
G11     52.0           28.9                3.2 +/-    1.21       5.7 +/-    1.21  0.050 / 0.070
G13     272.5          37.7                6.1 +/-    0.84       9.2 +/-    0.84  0.060 / 0.080
G15     305.7          13.1                2.6 +/-    1.79       6.8 +/-    1.79  0.060 / 0.110
G17     236.7          72.1                6.6 +/-    0.53       6.9 +/-    0.53  0.050 / 0.100
G18     46.9           16.6                2.0 +/-    0.96       4.8 +/-    0.96  0.050 / 0.110
G19     224.7          38.7                4.7 +/-    1.36       7.0 +/-    1.36  0.070 / 0.100
G28     19.6           59.4                5.0 +/-    0.57       5.7 +/-    0.57  0.110 / 0.240
G30     137.0          62.5                6.9 +/-    0.88       7.7 +/-    0.88  0.120 / 0.330