PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-04:12:40
G08     312.4          17.3                8.3 +/-    1.48      19.6 +/-    1.48  0.030 / 0.050
G10     327.1          59.2                6.0 +/-    0.86       6.9 +/-    0.86  0.030 / 0.040
G14     217.1          25.3                8.7 +/-    1.98      16.8 +/-    1.98  0.070 / 0.070
G15     46.4           14.1                2.6 +/-    2.55       6.6 +/-    2.55  0.080 / 0.060
G20     24.5           63.2                7.9 +/-    0.29       8.8 +/-    0.29  0.080 / 0.250
G21     131.4          60.4                8.2 +/-    1.03       9.3 +/-    1.03  0.110 / 0.220
G24     76.0           29.7                4.3 +/-    0.55       7.6 +/-    0.55  0.030 / 0.040
G27     278.2          37.6                8.6 +/-    1.35      13.0 +/-    1.35  0.020 / 0.040
G32     221.0          51.7                9.4 +/-    1.18      11.6 +/-    1.18  0.100 / 0.210