PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/29-02:57:50
G08     312.4          17.7                5.3 +/-    1.57      12.4 +/-    1.57  0.080 / 0.060
G10     320.5          57.7                5.3 +/-    0.57       6.2 +/-    0.57  0.070 / 0.070
G14     215.5          27.7                7.5 +/-    2.28      13.7 +/-    2.28  0.060 / 0.090
G15     46.0           17.5                4.4 +/-    2.99      10.3 +/-    2.99  0.060 / 0.090
G18     26.3           62.4                7.9 +/-    2.19       8.8 +/-    2.19  0.030 / 0.030
G21     127.8          62.1                8.1 +/-    0.41       9.0 +/-    0.41  0.030 / 0.020
G24     81.7           30.4                5.1 +/-    1.20       8.9 +/-    1.20  0.040 / 0.040
G27     279.7          38.1                6.0 +/-    2.14       9.0 +/-    2.14  0.040 / 0.040
G32     219.4          46.3                7.9 +/-    1.63      10.5 +/-    1.63  0.070 / 0.050