PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/10-12:43:10
G02     202.6          32.3                5.9 +/-    2.82       9.8 +/-    2.82  0.060 / 0.110
G06     166.5          65.6                7.0 +/-    1.09       7.7 +/-    1.09  0.080 / 0.080
G12     306.5          13.1                3.4 +/-    2.43       8.8 +/-    2.43  0.120 / 0.270
G17     36.5           48.8                3.2 +/-    0.22       4.1 +/-    0.22  0.110 / 0.160
G19     1.9            65.6                3.5 +/-    0.57       3.8 +/-    0.57  0.020 / 0.030
G24     301.7          35.9                4.3 +/-    1.13       6.7 +/-    1.13  0.030 / 0.030
G28     101.1          31.9                4.7 +/-    0.82       8.0 +/-    0.82  0.070 / 0.130