PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-23:57:50
G10     298.5          52.2                9.8 +/-    1.29      12.0 +/-    1.29  0.070 / 0.100
G14     210.6          11.4               -5.4 +/-   22.66     -14.6 +/-   22.66  0.090 / 0.080
G15     46.5           31.0                6.9 +/-    0.51      11.9 +/-    0.51  0.040 / 0.040
G20     293.9          46.0                4.9 +/-    1.75       6.5 +/-    1.75  0.040 / 0.040
G21     96.1           74.8                9.4 +/-    0.58       9.7 +/-    0.58  0.180 / 0.310
G24     95.0           26.5               11.0 +/-    1.23      20.8 +/-    1.23  0.170 / 0.460
G27     300.0          34.4                9.3 +/-    1.14      15.0 +/-    1.14  0.090 / 0.150
G32     210.5          34.5               12.6 +/-    1.72      20.2 +/-    1.72  0.140 / 0.170