PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-17:27:40
G01     309.9          30.9                7.1 +/-    1.85      12.2 +/-    1.85  0.100 / 0.130
G10     102.2          42.9                9.5 +/-    0.43      13.2 +/-    0.43  0.120 / 0.170
G11     287.7          27.2                7.7 +/-    1.36      14.4 +/-    1.36  0.030 / 0.050
G14     346.4          68.5                6.7 +/-    0.96       7.1 +/-    0.96  0.040 / 0.050
G22     308.5          23.6                6.2 +/-    2.25      12.5 +/-    2.25  0.030 / 0.040
G25     85.9           15.6                9.4 +/-    1.49      23.1 +/-    1.49  0.030 / 0.050
G31     169.7          61.2               10.1 +/-    0.79      11.3 +/-    0.79  0.060 / 0.200
G32     32.6           54.8                7.3 +/-    0.72       8.8 +/-    0.72  0.060 / 0.170