PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/30-03:58:10
G08     283.7          23.2                7.7 +/-    1.92      15.6 +/-    1.92  0.050 / 0.070
G10     21.7           63.2                3.4 +/-    0.50       3.8 +/-    0.50  0.040 / 0.080
G14     238.4          54.8                7.2 +/-    1.10       8.6 +/-    1.10  0.050 / 0.030
G18     71.1           48.5                3.9 +/-    0.66       5.1 +/-    0.66  0.040 / 0.040
G21     149.4          32.9                6.4 +/-    1.69      10.6 +/-    1.69  0.090 / 0.110
G24     50.9           23.0                4.1 +/-    0.46       8.3 +/-    0.46  0.080 / 0.130
G27     245.1          27.1               10.0 +/-    3.36      18.7 +/-    3.36  0.040 / 0.080
G31     182.1          12.9                7.7 +/-    2.88      20.2 +/-    2.88  0.060 / 0.120
G32     264.0          72.2                5.7 +/-    0.37       6.0 +/-    0.37  0.100 / 0.100