PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/27-06:28:00
G03     197.8          33.8                8.6 +/-    0.79      14.0 +/-    0.79  0.030 / 0.020
G07     280.0          32.2                6.5 +/-    1.07      10.8 +/-    1.07  0.030 / 0.020
G08     147.5          19.2                7.6 +/-    2.07      17.1 +/-    2.07  0.190 / 0.170
G09     320.8          53.1                6.6 +/-    0.82       8.0 +/-    0.82  0.160 / 0.270
G16     50.0           53.7                6.8 +/-    0.83       8.2 +/-    0.83  0.090 / 0.110
G22     181.1          17.5                6.4 +/-    2.66      15.1 +/-    2.66  0.080 / 0.070
G23     13.5           81.1                5.7 +/-    0.56       5.8 +/-    0.56  0.040 / 0.040
G26     43.5           25.3                4.4 +/-    2.27       8.6 +/-    2.27  0.040 / 0.050
G27     111.0          27.9                6.7 +/-    1.05      12.3 +/-    1.05  0.140 / 0.210