PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-10:13:00
G08     320.2          10.9               -6.5 +/-   30.33     -17.8 +/-   30.33  0.190 / 0.510
G10     313.3          56.2                1.6 +/-    1.03       1.9 +/-    1.03  0.130 / 0.470
G14     214.0          18.8                7.5 +/-    1.70      17.1 +/-    1.70  0.030 / 0.050
G15     45.6           18.1                2.1 +/-    1.20       4.9 +/-    1.20  0.040 / 0.040
G20     72.0           26.7                3.4 +/-    1.01       6.4 +/-    1.01  0.050 / 0.080
G21     121.5          65.5                7.0 +/-    0.69       7.6 +/-    0.69  0.050 / 0.080
G24     86.2           29.5                4.5 +/-    0.53       8.0 +/-    0.53  0.030 / 0.040
G27     287.1          37.6                5.4 +/-    0.99       8.2 +/-    0.99  0.030 / 0.040
G32     215.8          43.7                7.5 +/-    1.97      10.4 +/-    1.97  0.060 / 0.160