PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-12:12:40
G05     47.0           21.7                3.4 +/-    2.44       7.3 +/-    2.44  0.200 / 0.280
G10     233.2          11.1              -11.2 +/-   30.50     -30.4 +/-   30.50  0.260 / 0.190
G13     80.0           35.1                7.0 +/-    1.58      11.1 +/-    1.58  0.260 / 0.370
G15     124.4          50.3                8.3 +/-    0.53      10.4 +/-    0.53  0.530 / 0.560
G16     317.1          11.2               -0.5 +/-   11.37      -1.5 +/-   11.37  0.050 / 0.070
G20     245.7          37.2                8.0 +/-    1.64      12.1 +/-    1.64  0.080 / 0.090
G21     310.8          45.0                5.0 +/-    1.11       6.7 +/-    1.11  0.030 / 0.020
G25     201.1          14.7                4.0 +/-    2.42      10.0 +/-    2.42  0.030 / 0.020
G26     292.8          19.9                5.4 +/-    2.06      12.0 +/-    2.06  0.210 / 0.260
G29     146.9          78.7                6.7 +/-    0.58       6.8 +/-    0.58  0.180 / 0.340