PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-05:42:40
G10     270.5          40.0                7.8 +/-    0.96      11.4 +/-    0.96  0.140 / 0.430
G13     40.6           16.0                4.0 +/-    2.20       9.6 +/-    2.20  0.090 / 0.340
G15     56.0           46.2                5.5 +/-    0.60       7.3 +/-    0.60  0.100 / 0.180
G16     275.3          10.9                4.7 +/-    1.94      12.8 +/-    1.94  0.070 / 0.150
G20     357.9          67.2                5.1 +/-    0.72       5.4 +/-    0.72  0.070 / 0.070
G21     10.2           73.6                6.0 +/-    0.54       6.2 +/-    0.54  0.060 / 0.060
G24     117.4          16.1                7.0 +/-    1.64      17.1 +/-    1.64  0.090 / 0.210
G27     316.9          21.7                1.4 +/-    4.13       3.0 +/-    4.13  0.090 / 0.180
G29     168.5          28.3                7.7 +/-    1.30      14.1 +/-    1.30  0.040 / 0.040
G32     204.4          13.6                5.9 +/-    1.01      15.3 +/-    1.01  0.050 / 0.050