PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/23-02:43:00
G08     273.2          21.0               12.0 +/-    2.19      25.8 +/-    2.19  0.020 / 0.020
G10     44.0           61.6                9.7 +/-    0.75      10.9 +/-    0.75  0.020 / 0.020
G11     314.8          13.9                7.8 +/-    1.72      20.1 +/-    1.72  0.030 / 0.020
G14     253.4          62.7               11.5 +/-    0.61      12.8 +/-    0.61  0.040 / 0.020
G18     83.2           42.1               11.3 +/-    1.20      15.8 +/-    1.20  0.100 / 0.160
G21     152.5          22.4               10.2 +/-    3.19      21.2 +/-    3.19  0.090 / 0.180
G24     44.1           16.9                9.1 +/-    2.20      21.7 +/-    2.20  0.040 / 0.040
G27     236.4          20.6               11.7 +/-    2.57      25.4 +/-    2.57  0.040 / 0.050
G31     180.5          21.7               13.3 +/-    2.52      28.0 +/-    2.52  0.190 / 0.220
G32     299.5          75.4               10.2 +/-    0.66      10.5 +/-    0.66  0.250 / 0.430