PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/15-00:58:00
G10     252.9          28.6               13.4 +/-    1.92      24.3 +/-    1.92  0.030 / 0.040
G13     51.2           28.3                8.4 +/-    1.35      15.2 +/-    1.35  0.050 / 0.040
G15     84.5           58.2               12.3 +/-    0.80      14.2 +/-    0.80  0.090 / 0.120
G16     291.7          15.7                9.3 +/-    1.67      22.7 +/-    1.67  0.140 / 0.210
G20     264.2          40.0               10.4 +/-    3.21      15.2 +/-    3.21  0.120 / 0.290
G21     335.8          61.4               11.2 +/-    0.75      12.6 +/-    0.75  0.120 / 0.260
G26     263.8          14.6               12.4 +/-    2.50      31.1 +/-    2.50  0.030 / 0.030
G29     165.9          48.0               12.5 +/-    0.82      16.1 +/-    0.82  0.030 / 0.030