PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/24-17:28:00
G01     309.9          30.9                7.6 +/-    0.74      13.0 +/-    0.74  0.120 / 0.150
G10     102.2          42.9                9.3 +/-    0.79      12.9 +/-    0.79  0.130 / 0.110
G11     287.7          27.2                6.8 +/-    1.74      12.6 +/-    1.74  0.030 / 0.030
G14     346.4          68.5                6.1 +/-    0.40       6.5 +/-    0.40  0.030 / 0.040
G22     308.5          23.6                7.3 +/-    1.06      14.7 +/-    1.06  0.070 / 0.170
G25     85.9           15.6                9.1 +/-    2.66      22.2 +/-    2.66  0.130 / 0.180
G31     169.7          61.2                8.7 +/-    0.36       9.8 +/-    0.36  0.060 / 0.040
G32     32.6           54.8                7.1 +/-    1.02       8.4 +/-    1.02  0.060 / 0.040