PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/10-09:12:40
G01     84.0           32.9                4.6 +/-    1.28       7.6 +/-    1.28  0.020 / 0.020
G07     130.1          39.8                6.8 +/-    0.54       9.9 +/-    0.54  0.020 / 0.020
G11     61.6           36.5                5.0 +/-    1.05       7.8 +/-    1.05  0.060 / 0.060
G13     288.0          37.6                1.2 +/-    1.15       1.8 +/-    1.15  0.060 / 0.050
G17     218.4          61.0                7.9 +/-    1.10       8.9 +/-    1.10  0.100 / 0.090
G18     56.9           21.6                4.1 +/-    3.58       8.7 +/-    3.58  0.070 / 0.090
G19     217.3          28.1                5.6 +/-    2.22      10.1 +/-    2.22  0.210 / 0.250
G28     356.7          61.5                4.9 +/-    0.65       5.5 +/-    0.65  0.130 / 0.300
G30     117.3          73.8                7.1 +/-    0.89       7.3 +/-    0.89  0.170 / 0.100