PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-02:13:00
G02     57.2           34.3               10.2 +/-    0.77      16.4 +/-    0.77  0.040 / 0.090
G05     62.4           62.6               10.5 +/-    0.19      11.7 +/-    0.19  0.060 / 0.100
G12     185.2          36.1               13.8 +/-    2.67      21.5 +/-    2.67  0.030 / 0.040
G13     131.1          12.8               12.8 +/-    2.42      33.6 +/-    2.42  0.030 / 0.030
G20     217.1          12.1               13.5 +/-    4.12      36.0 +/-    4.12  0.060 / 0.100
G21     268.3          14.7               12.0 +/-    4.52      30.1 +/-    4.52  0.050 / 0.090
G25     243.7          54.2               15.8 +/-    0.58      19.0 +/-    0.58  0.110 / 0.290
G29     325.5          50.4               13.1 +/-    1.02      16.4 +/-    1.02  0.110 / 0.320