PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-02:57:50
G08     291.4          23.5                7.6 +/-    1.10      15.3 +/-    1.10  0.040 / 0.020
G10     5.4            63.1                7.3 +/-    0.68       8.1 +/-    0.68  0.030 / 0.030
G14     230.6          48.4               12.3 +/-    2.28      15.8 +/-    2.28  0.050 / 0.070
G18     62.1           52.2                8.2 +/-    0.95      10.1 +/-    0.95  0.040 / 0.070
G21     146.1          40.0                9.7 +/-    1.20      14.1 +/-    1.20  0.110 / 0.130
G24     57.2           26.6                6.3 +/-    1.72      11.8 +/-    1.72  0.080 / 0.130
G27     252.4          31.3                9.9 +/-    3.33      16.9 +/-    3.33  0.030 / 0.030
G32     245.7          66.6                9.2 +/-    0.73       9.9 +/-    0.73  0.040 / 0.030