PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-14:27:40
G08     270.0          17.7                5.8 +/-    2.22      13.6 +/-    2.22  0.100 / 0.150
G10     61.0           58.7                5.6 +/-    0.55       6.5 +/-    0.55  0.130 / 0.130
G11     313.3          15.0                4.3 +/-    2.28      10.7 +/-    2.28  0.060 / 0.090
G14     265.2          64.8                5.1 +/-    1.03       5.6 +/-    1.03  0.040 / 0.110
G21     154.0          13.3                7.1 +/-    3.19      18.5 +/-    3.19  0.030 / 0.050
G24     39.9           10.4                6.7 +/-    2.11      18.5 +/-    2.11  0.030 / 0.060
G27     230.8          15.4                6.1 +/-    1.67      15.0 +/-    1.67  0.100 / 0.290
G31     177.8          31.3                8.0 +/-    2.43      13.7 +/-    2.43  0.070 / 0.330
G32     342.6          73.8                5.6 +/-    0.44       5.9 +/-    0.44  0.030 / 0.030