PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-17:58:00
G01     257.3          37.7                9.4 +/-    2.47      14.3 +/-    2.47  0.040 / 0.050
G03     316.6          41.6                9.1 +/-    0.63      12.9 +/-    0.63  0.040 / 0.050
G11     243.8          15.5               10.3 +/-    0.99      25.4 +/-    0.99  0.030 / 0.040
G14     53.9           44.9                8.5 +/-    0.61      11.5 +/-    0.61  0.030 / 0.030
G22     309.4          62.6                7.8 +/-    0.89       8.7 +/-    0.89  0.070 / 0.090
G23     283.3          17.2                3.5 +/-   12.15       8.3 +/-   12.15  0.060 / 0.070
G25     44.0           13.2                6.2 +/-    2.71      16.1 +/-    2.71  0.150 / 0.150
G26     140.3          33.9               11.2 +/-    0.43      18.2 +/-    0.43  0.110 / 0.150
G31     42.7           63.3                7.2 +/-    0.59       8.0 +/-    0.59  0.070 / 0.070
G32     73.4           25.5                8.5 +/-    1.56      16.5 +/-    1.56  0.060 / 0.060