PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-01:42:30
G03     231.2          65.6                5.1 +/-    0.87       5.6 +/-    0.87  0.040 / 0.050
G07     250.7          10.4               -5.8 +/-   17.21     -15.9 +/-   17.21  0.040 / 0.060
G09     305.9          21.5                1.9 +/-    3.84       3.9 +/-    3.84  0.190 / 0.360
G14     103.5          10.9                4.1 +/-    2.01      11.3 +/-    2.01  0.080 / 0.380
G16     130.6          61.3                8.9 +/-    0.68      10.0 +/-    0.68  0.080 / 0.180
G22     193.6          52.0                7.7 +/-    0.85       9.5 +/-    0.85  0.080 / 0.140
G23     321.5          51.3                3.1 +/-    1.40       3.9 +/-    1.40  0.030 / 0.040
G26     66.6           52.2                4.3 +/-    0.46       5.3 +/-    0.46  0.040 / 0.050
G31     53.3           19.5                1.5 +/-    0.96       3.4 +/-    0.96  0.170 / 0.210