PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-02:28:00
G01     225.2          17.8                4.7 +/-    1.70      11.0 +/-    1.70  0.130 / 0.240
G03     292.8          66.3                3.9 +/-    0.68       4.2 +/-    0.68  0.130 / 0.300
G14     83.6           27.5                3.3 +/-    2.10       6.0 +/-    2.10  0.080 / 0.180
G16     145.3          43.9                5.2 +/-    1.02       7.1 +/-    1.02  0.080 / 0.150
G22     226.2          71.6                5.1 +/-    0.51       5.3 +/-    0.51  0.050 / 0.080
G23     307.2          37.7                3.7 +/-    1.76       5.6 +/-    1.76  0.050 / 0.080
G26     99.1           53.7                3.6 +/-    1.12       4.3 +/-    1.12  0.040 / 0.040
G31     45.4           31.9                2.5 +/-    1.22       4.1 +/-    1.22  0.040 / 0.030