PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/05-08:58:10
G01     125.7          12.7                3.2 +/-    2.29       8.5 +/-    2.29  0.040 / 0.070
G07     61.5           68.1                3.8 +/-    0.56       4.1 +/-    0.56  0.040 / 0.070
G08     48.8           36.8                2.9 +/-    0.67       4.5 +/-    0.67  0.110 / 0.390
G09     176.9          33.4                6.1 +/-    1.52       9.9 +/-    1.52  0.100 / 0.410
G11     115.0          35.1                7.5 +/-    1.89      11.9 +/-    1.89  0.030 / 0.040
G13     321.5          11.0               -7.5 +/-   10.65     -20.4 +/-   10.65  0.030 / 0.040
G17     199.5          18.4                5.1 +/-    1.82      11.7 +/-    1.82  0.040 / 0.060
G28     279.4          54.0                5.5 +/-    1.52       6.6 +/-    1.52  0.060 / 0.070
G30     333.8          60.8                4.4 +/-    0.77       5.0 +/-    0.77  0.070 / 0.090