PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-08:28:00
G03     239.3          66.7                3.7 +/-    2.77       4.0 +/-    2.77  0.050 / 0.050
G07     249.9          11.1                0.8 +/-   17.16       2.2 +/-   17.16  0.050 / 0.050
G09     305.8          22.6                3.2 +/-    5.95       6.6 +/-    5.95  0.090 / 0.350
G14     102.4          11.2                0.3 +/-    9.06       0.9 +/-    9.06  0.090 / 0.390
G16     125.0          60.9                8.3 +/-    1.77       9.4 +/-    1.77  0.030 / 0.050
G22     192.3          52.9                5.2 +/-    2.12       6.4 +/-    2.12  0.030 / 0.040
G23     320.0          49.6                5.6 +/-    6.76       7.0 +/-    6.76  0.090 / 0.520
G26     67.5           51.9              -24.0 +/-   64.26     -29.6 +/-   64.26  0.090 / 0.510
G31     53.2           18.3                5.1 +/-   13.33      11.6 +/-   13.33  0.040 / 0.070