PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-10:43:10
G01     69.6           32.8                4.7 +/-    0.84       7.8 +/-    0.84  0.030 / 0.040
G07     137.9          29.3                6.3 +/-    1.31      11.2 +/-    1.31  0.030 / 0.040
G11     52.1           29.0                3.5 +/-    1.07       6.3 +/-    1.07  0.060 / 0.080
G13     272.8          37.7                8.1 +/-    0.99      12.3 +/-    0.99  0.060 / 0.080
G15     306.0          12.9                2.8 +/-    1.51       7.4 +/-    1.51  0.080 / 0.120
G17     236.2          71.8                6.7 +/-    0.48       7.0 +/-    0.48  0.070 / 0.100
G18     47.1           16.7                2.4 +/-    1.26       5.7 +/-    1.26  0.140 / 0.200
G19     224.6          38.4                6.0 +/-    1.57       9.0 +/-    1.57  0.110 / 0.260
G28     19.4           59.5                5.0 +/-    0.86       5.7 +/-    0.86  0.080 / 0.180
G30     136.8          62.6                7.8 +/-    1.18       8.6 +/-    1.18  0.080 / 0.150