PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/17-02:28:00
G08     265.6          18.2                8.8 +/-    1.95      20.2 +/-    1.95  0.120 / 0.190
G10     61.9           58.1                7.1 +/-    0.39       8.2 +/-    0.39  0.120 / 0.190
G11     310.8          18.0                5.1 +/-    2.48      11.7 +/-    2.48  0.100 / 0.270
G14     265.8          65.4                6.2 +/-    0.91       6.8 +/-    0.91  0.170 / 0.390
G18     312.2          32.2                6.2 +/-    2.92      10.5 +/-    2.92  0.040 / 0.060
G20     62.8           65.1                9.2 +/-    0.80      10.0 +/-    0.80  0.040 / 0.060
G21     155.1          16.1                6.8 +/-    1.54      16.4 +/-    1.54  0.160 / 0.260
G27     231.8          15.8                8.6 +/-    1.95      21.1 +/-    1.95  0.130 / 0.320
G31     176.6          32.4                9.0 +/-    1.62      14.9 +/-    1.62  0.090 / 0.200
G32     347.0          73.5                6.7 +/-    0.56       6.9 +/-    0.56  0.100 / 0.220