PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-07:12:40
G08     315.3          15.0                0.6 +/-    3.39       1.4 +/-    3.39  0.150 / 0.290
G10     323.3          58.5                4.4 +/-    0.43       5.0 +/-    0.43  0.150 / 0.190
G14     216.4          22.2                6.4 +/-    2.09      13.3 +/-    2.09  0.070 / 0.070
G15     46.2           14.3                2.5 +/-    1.26       6.4 +/-    1.26  0.080 / 0.070
G20     60.2           46.4                5.8 +/-    1.18       7.6 +/-    1.18  0.040 / 0.030
G21     129.2          61.7                6.8 +/-    0.34       7.6 +/-    0.34  0.040 / 0.050
G24     79.0           30.0                8.4 +/-    1.96      14.7 +/-    1.96  0.190 / 0.270
G27     280.2          37.8                5.4 +/-    1.65       8.2 +/-    1.65  0.160 / 0.350
G32     219.6          49.7                7.5 +/-    1.70       9.5 +/-    1.70  0.100 / 0.080