PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-09:57:50
G01     84.0           32.9                4.3 +/-    0.77       7.2 +/-    0.77  0.030 / 0.030
G07     130.0          40.0                6.0 +/-    1.08       8.7 +/-    1.08  0.030 / 0.040
G11     61.7           36.5                3.0 +/-    0.44       4.7 +/-    0.44  0.100 / 0.110
G13     288.0          37.6                3.5 +/-    0.87       5.3 +/-    0.87  0.120 / 0.110
G17     218.5          60.7                5.7 +/-    0.85       6.4 +/-    0.85  0.040 / 0.060
G18     57.2           21.7                1.1 +/-    1.17       2.3 +/-    1.17  0.040 / 0.080
G19     217.3          27.8                6.3 +/-    1.81      11.5 +/-    1.81  0.070 / 0.210
G28     357.0          61.4                3.7 +/-    1.13       4.2 +/-    1.13  0.070 / 0.220
G30     117.3          73.8                5.6 +/-    0.90       5.8 +/-    0.90  0.090 / 0.120