PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-03:27:40
G08     278.9          22.4                8.7 +/-    0.80      18.0 +/-    0.80  0.020 / 0.020
G10     31.8           62.8                5.2 +/-    0.40       5.8 +/-    0.40  0.020 / 0.020
G14     244.4          58.5                6.7 +/-    0.94       7.7 +/-    0.94  0.130 / 0.120
G18     76.7           45.7                6.3 +/-    0.94       8.5 +/-    0.94  0.140 / 0.200
G21     150.9          28.2                7.3 +/-    0.81      13.3 +/-    0.81  0.030 / 0.020
G24     47.6           20.5                6.1 +/-    2.96      13.2 +/-    2.96  0.030 / 0.020
G27     241.0          24.3                8.1 +/-    1.26      16.0 +/-    1.26  0.060 / 0.150
G31     181.3          16.8                7.3 +/-    2.24      17.4 +/-    2.24  0.070 / 0.140
G32     278.5          74.2                6.2 +/-    0.72       6.4 +/-    0.72  0.040 / 0.040