PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/25-06:27:50
G01     233.3          25.0                7.2 +/-    2.28      14.1 +/-    2.28  0.040 / 0.030
G03     307.0          60.0                4.1 +/-    1.09       4.7 +/-    1.09  0.040 / 0.030
G14     75.5           31.7                3.3 +/-    1.91       5.6 +/-    1.91  0.160 / 0.210
G16     153.9          33.6                5.6 +/-    0.99       9.2 +/-    0.99  0.100 / 0.220
G18     209.0          14.3                6.4 +/-    2.48      16.2 +/-    2.48  0.080 / 0.120
G22     258.1          75.2                5.9 +/-    0.68       6.0 +/-    0.68  0.080 / 0.130
G23     301.2          33.5                3.9 +/-    0.87       6.3 +/-    0.87  0.270 / 0.440
G26     116.7          49.9                6.1 +/-    0.59       7.7 +/-    0.59  0.140 / 0.440
G31     42.5           40.7                2.6 +/-    1.42       3.7 +/-    1.42  0.090 / 0.140
G32     90.0           13.8                3.3 +/-    2.04       8.4 +/-    2.04  0.090 / 0.120