PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-03:42:40
G01     289.3          40.4                7.1 +/-    1.20      10.2 +/-    1.20  0.070 / 0.090
G03     311.9          15.7                7.9 +/-    1.41      19.3 +/-    1.41  0.050 / 0.080
G10     120.3          28.9                7.7 +/-    0.70      13.7 +/-    0.70  0.060 / 0.100
G11     262.0          26.7                9.7 +/-    2.27      18.2 +/-    2.27  0.060 / 0.090
G14     28.1           57.1                6.6 +/-    0.77       7.7 +/-    0.77  0.040 / 0.050
G22     313.8          38.9                7.3 +/-    2.60      10.7 +/-    2.60  0.050 / 0.050
G25     62.5           17.6                7.7 +/-    0.56      18.0 +/-    0.56  0.080 / 0.170
G26     158.3          12.6                9.9 +/-    1.74      26.2 +/-    1.74  0.050 / 0.130
G31     134.5          79.4               10.8 +/-    0.96      10.9 +/-    0.96  0.040 / 0.050
G32     50.0           43.4                5.8 +/-    0.65       8.0 +/-    0.65  0.040 / 0.060