PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-04:28:00
G01     230.0          20.6                7.5 +/-    1.72      16.3 +/-    1.72  0.080 / 0.170
G03     299.3          63.3                4.5 +/-    0.85       5.0 +/-    0.85  0.090 / 0.180
G14     81.7           28.0                3.3 +/-    1.07       6.1 +/-    1.07  0.040 / 0.050
G16     148.4          41.0                8.2 +/-    0.76      11.7 +/-    0.76  0.040 / 0.030
G18     205.5          10.0                5.9 +/-    2.69      16.5 +/-    2.69  0.080 / 0.190
G22     233.8          73.8                5.8 +/-    0.78       6.0 +/-    0.78  0.090 / 0.170
G23     303.3          33.3                6.1 +/-    0.80      10.1 +/-    0.80  0.050 / 0.110
G26     104.6          52.7                7.3 +/-    0.41       8.9 +/-    0.41  0.050 / 0.100
G31     43.8           35.7                4.0 +/-    0.75       6.3 +/-    0.75  0.070 / 0.110