PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/05-15:42:40
G01     320.9          11.0              -11.8 +/-   31.85     -32.1 +/-   31.85  0.040 / 0.070
G08     266.9          16.8                8.7 +/-    1.48      20.8 +/-    1.48  0.040 / 0.060
G10     65.5           57.7                6.6 +/-    0.61       7.7 +/-    0.61  0.240 / 0.490
G11     311.3          17.0                6.8 +/-    2.63      16.2 +/-    2.63  0.260 / 0.370
G14     271.6          66.6                8.3 +/-    0.72       8.9 +/-    0.72  0.060 / 0.080
G21     154.1          10.3               10.6 +/-    3.21      29.4 +/-    3.21  0.050 / 0.080
G27     228.9          13.7                8.1 +/-   13.63      20.8 +/-   13.63  0.140 / 0.420
G31     177.6          33.4                9.7 +/-    2.88      15.9 +/-    2.88  0.160 / 0.410
G32     349.1          72.5                7.5 +/-    0.77       7.9 +/-    0.77  0.190 / 0.410