PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/10-13:13:00
G01     89.6           31.9                5.8 +/-    0.76       9.8 +/-    0.76  0.020 / 0.020
G07     126.0          45.0                7.4 +/-    0.77      10.0 +/-    0.77  0.020 / 0.020
G11     67.0           38.9                5.4 +/-    0.95       7.9 +/-    0.95  0.050 / 0.040
G13     293.7          36.4                6.7 +/-    3.71      10.3 +/-    3.71  0.050 / 0.040
G17     214.5          55.2                9.9 +/-    0.73      11.8 +/-    0.73  0.100 / 0.120
G18     62.7           23.5                4.6 +/-    1.43       9.3 +/-    1.43  0.100 / 0.120
G19     215.1          24.3                7.6 +/-    2.84      15.0 +/-    2.84  0.100 / 0.080
G28     349.6          61.7                5.3 +/-    0.59       6.0 +/-    0.59  0.100 / 0.100
G30     102.7          77.2                5.8 +/-    0.49       5.9 +/-    0.49  0.060 / 0.130