PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-02:43:10
G03     259.0          69.2                5.0 +/-    0.96       5.3 +/-    0.96  0.040 / 0.050
G09     300.7          15.3                2.2 +/-    1.99       5.3 +/-    1.99  0.030 / 0.050
G14     96.2           16.6                6.1 +/-    1.39      14.5 +/-    1.39  0.050 / 0.060
G16     144.0          53.2               11.0 +/-    0.75      13.4 +/-    0.75  0.040 / 0.060
G22     201.1          61.7                8.0 +/-    1.28       9.0 +/-    1.28  0.120 / 0.300
G23     314.3          43.7                5.2 +/-    1.33       7.2 +/-    1.33  0.130 / 0.370
G26     84.6           56.3                6.2 +/-    0.38       7.3 +/-    0.38  0.140 / 0.490
G31     48.1           27.9                0.0 +/-    1.61       0.0 +/-    1.61  0.120 / 0.400