PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-04:58:00
G08     264.1          17.5                8.8 +/-    1.77      20.5 +/-    1.77  0.030 / 0.040
G10     62.5           58.6                3.7 +/-    1.04       4.3 +/-    1.04  0.030 / 0.010
G11     308.7          20.3                4.8 +/-    2.30      10.5 +/-    2.30  0.090 / 0.190
G14     274.0          68.5                5.9 +/-    0.57       6.3 +/-    0.57  0.070 / 0.310
G18     92.2           37.0                5.4 +/-    0.80       8.2 +/-    0.80  0.030 / 0.010
G21     154.5          14.0                5.1 +/-    5.07      13.0 +/-    5.07  0.030 / 0.010
G24     39.6           10.3                4.8 +/-    4.94      13.4 +/-    4.94  0.180 / 0.430
G27     229.3          14.4                8.5 +/-    2.03      21.5 +/-    2.03  0.150 / 0.270
G31     177.9          32.0                9.0 +/-    2.32      15.1 +/-    2.32  0.070 / 0.050
G32     341.0          73.5                1.8 +/-    0.48       1.9 +/-    0.48  0.060 / 0.050