PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/01-02:27:50
G08     318.2          13.5                7.9 +/-    3.69      20.5 +/-    3.69  0.050 / 0.060
G10     307.2          54.4                8.8 +/-    1.08      10.6 +/-    1.08  0.050 / 0.060
G14     212.2          20.2               14.5 +/-    2.76      31.7 +/-    2.76  0.040 / 0.030
G15     45.7           24.3                7.8 +/-    2.43      15.4 +/-    2.43  0.030 / 0.030
G18     10.4           64.8                8.0 +/-    0.72       8.7 +/-    0.72  0.050 / 0.130
G20     77.0           12.2                7.5 +/-    1.87      20.0 +/-    1.87  0.070 / 0.080
G21     114.7          69.0               12.0 +/-    0.83      12.7 +/-    0.83  0.090 / 0.100
G24     91.1           28.9               10.4 +/-    1.54      18.6 +/-    1.54  0.070 / 0.100
G27     290.1          37.4                9.6 +/-    4.03      14.6 +/-    4.03  0.110 / 0.270
G32     214.5          38.3               11.4 +/-    1.95      17.1 +/-    1.95  0.130 / 0.280