PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-10:27:40
G01     67.2           32.4                4.5 +/-    1.79       7.4 +/-    1.79  0.090 / 0.120
G07     139.0          27.4                6.0 +/-    2.08      11.1 +/-    2.08  0.080 / 0.120
G11     50.8           27.5                1.8 +/-    1.96       3.3 +/-    1.96  0.040 / 0.030
G13     270.1          37.3                5.1 +/-    3.03       7.8 +/-    3.03  0.040 / 0.040
G17     241.3          73.7                5.9 +/-    0.58       6.1 +/-    0.58  0.070 / 0.120
G18     45.5           15.5                2.6 +/-    1.39       6.4 +/-    1.39  0.070 / 0.090
G19     226.1          40.5                6.0 +/-    1.39       8.7 +/-    1.39  0.060 / 0.080
G28     23.0           59.0                4.7 +/-    0.98       5.4 +/-    0.98  0.100 / 0.070
G30     138.9          60.6                5.8 +/-    0.34       6.6 +/-    0.34  0.170 / 0.240