PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-13:27:50
G01     320.6          12.6               -0.3 +/-   14.29      -0.7 +/-   14.29  0.170 / 0.200
G08     266.7          15.9                5.8 +/-    1.72      14.0 +/-    1.72  0.300 / 0.250
G10     69.0           56.8                4.8 +/-    0.55       5.6 +/-    0.55  0.040 / 0.040
G11     310.4          17.6                4.5 +/-    1.86      10.4 +/-    1.86  0.040 / 0.050
G14     274.3          66.7                6.5 +/-    0.50       7.0 +/-    0.50  0.080 / 0.070
G27     227.7          12.5                3.7 +/-    2.66       9.8 +/-    2.66  0.040 / 0.080
G31     176.5          36.2                6.5 +/-    1.31      10.1 +/-    1.31  0.170 / 0.300
G32     356.2          71.1                4.6 +/-    0.65       4.9 +/-    0.65  0.140 / 0.260