PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/02-10:27:50
G01     122.0          15.6                4.5 +/-    1.12      11.1 +/-    1.12  0.030 / 0.040
G07     71.9           67.8                4.9 +/-    0.69       5.3 +/-    0.69  0.020 / 0.040
G08     45.5           31.9                3.1 +/-    0.39       5.1 +/-    0.39  0.020 / 0.040
G09     175.3          26.8                5.5 +/-    1.64      10.3 +/-    1.64  0.020 / 0.040
G11     109.0          38.5                6.0 +/-    0.62       9.0 +/-    0.62  0.100 / 0.200
G13     319.0          17.0                0.4 +/-    1.62       0.9 +/-    1.62  0.120 / 0.220
G17     200.1          23.1                4.6 +/-    1.75       9.4 +/-    1.75  0.080 / 0.240
G18     96.9           19.4                4.7 +/-    1.48      10.5 +/-    1.48  0.090 / 0.160
G28     286.0          55.7                4.4 +/-    1.37       5.2 +/-    1.37  0.100 / 0.260
G30     337.6          64.2                3.2 +/-    0.33       3.5 +/-    0.33  0.090 / 0.220