PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/04-01:28:00
G03     201.1          42.7                7.4 +/-    0.56      10.3 +/-    0.56  0.080 / 0.130
G07     270.3          25.3                4.6 +/-    1.89       8.8 +/-    1.89  0.140 / 0.140
G08     154.7          11.0               -2.0 +/-   29.87      -5.6 +/-   29.87  0.040 / 0.030
G09     317.1          41.5                5.3 +/-    0.82       7.6 +/-    0.82  0.030 / 0.030
G16     64.7           62.5                5.7 +/-    0.57       6.3 +/-    0.57  0.220 / 0.460
G22     184.2          26.7                5.8 +/-    1.88      11.0 +/-    1.88  0.240 / 0.370
G23     347.5          73.1                5.3 +/-    0.60       5.5 +/-    0.60  0.050 / 0.050
G26     45.4           32.7                3.7 +/-    1.30       6.1 +/-    1.30  0.050 / 0.050
G27     120.4          21.7                7.7 +/-    0.94      16.4 +/-    0.94  0.240 / 0.190