PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-04:43:00
G07     327.8          55.9                3.9 +/-    0.36       4.6 +/-    0.36  0.170 / 0.170
G08     105.0          50.2                8.0 +/-    0.92      10.0 +/-    0.92  0.080 / 0.230
G09     200.6          78.3                5.8 +/-    0.70       5.9 +/-    0.70  0.020 / 0.040
G11     148.3          10.0               -3.6 +/-   15.49     -10.1 +/-   15.49  0.040 / 0.040
G16     44.7           16.1                2.9 +/-    2.09       7.1 +/-    2.09  0.170 / 0.270
G23     154.2          48.0                8.1 +/-    0.72      10.5 +/-    0.72  0.150 / 0.280
G27     58.7           33.0                5.3 +/-    1.03       8.7 +/-    1.03  0.030 / 0.040
G28     234.1          26.6                4.6 +/-    1.85       8.7 +/-    1.85  0.040 / 0.050
G30     298.5          32.4                3.4 +/-    2.00       5.6 +/-    2.00  0.060 / 0.070