PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/01-01:28:00
G08     264.4          18.0                9.9 +/-    1.10      23.0 +/-    1.10  0.130 / 0.220
G10     63.1           57.8                7.3 +/-    0.69       8.5 +/-    0.69  0.130 / 0.200
G11     310.2          18.6                7.1 +/-    2.49      16.2 +/-    2.49  0.120 / 0.350
G14     268.0          66.3                8.0 +/-    0.77       8.7 +/-    0.77  0.120 / 0.490
G18     311.8          32.8                7.7 +/-    2.91      12.7 +/-    2.91  0.040 / 0.050
G20     42.6           69.7               10.3 +/-    0.93      10.9 +/-    0.93  0.040 / 0.060
G21     155.2          15.7               10.1 +/-    1.46      24.8 +/-    1.46  0.120 / 0.250
G27     231.4          15.4               11.5 +/-    1.96      28.3 +/-    1.96  0.150 / 0.270
G31     176.4          33.0               10.6 +/-    1.56      17.4 +/-    1.56  0.130 / 0.240
G32     348.9          73.2                7.6 +/-    0.33       7.9 +/-    0.33  0.140 / 0.310