PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-06:27:50
G01     237.1          26.8                7.6 +/-    3.62      14.3 +/-    3.62  0.040 / 0.030
G03     309.8          55.6                4.9 +/-    1.22       5.7 +/-    1.22  0.050 / 0.040
G14     73.2           33.8                3.7 +/-    0.49       6.0 +/-    0.49  0.090 / 0.130
G16     153.3          32.9                6.3 +/-    1.60      10.5 +/-    1.60  0.080 / 0.130
G18     211.3          16.7                4.6 +/-    1.64      10.9 +/-    1.64  0.040 / 0.060
G22     268.9          75.0                5.2 +/-    0.66       5.4 +/-    0.66  0.040 / 0.050
G23     297.2          28.1                3.0 +/-    2.02       5.5 +/-    2.02  0.080 / 0.160
G26     116.8          48.6                6.4 +/-    2.01       8.3 +/-    2.01  0.080 / 0.170
G31     41.9           42.3                3.7 +/-    0.69       5.1 +/-    0.69  0.060 / 0.140
G32     89.4           12.8                4.3 +/-    1.26      11.2 +/-    1.26  0.060 / 0.110