PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/20-02:27:50
G08     260.4          15.7               10.5 +/-    2.39      25.8 +/-    2.39  0.210 / 0.340
G10     71.8           55.6                9.7 +/-    0.83      11.4 +/-    0.83  0.160 / 0.430
G11     306.6          21.2                7.1 +/-    1.21      15.1 +/-    1.21  0.290 / 0.640
G14     279.5          68.3                9.5 +/-    1.27      10.2 +/-    1.27  0.200 / 0.530
G18     308.7          36.7                8.4 +/-    2.45      12.9 +/-    2.45  0.150 / 0.310
G20     72.2           64.1               11.5 +/-    0.88      12.6 +/-    0.88  0.280 / 0.320
G21     155.8          10.9                9.3 +/-    5.27      25.5 +/-    5.27  0.030 / 0.040
G27     227.8          12.1               11.7 +/-    1.27      31.2 +/-    1.27  0.040 / 0.040
G31     175.3          38.3               11.4 +/-    1.01      17.1 +/-    1.01  0.150 / 0.300
G32     1.7            69.9                9.1 +/-    0.30       9.6 +/-    0.30  0.170 / 0.260