PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-04:12:40
G03     222.4          63.3                5.4 +/-    0.91       5.9 +/-    0.91  0.060 / 0.080
G07     253.8          14.2                5.6 +/-    1.01      14.2 +/-    1.01  0.040 / 0.080
G09     308.0          25.0                2.8 +/-    0.77       5.5 +/-    0.77  0.080 / 0.210
G14     104.7          11.3                3.9 +/-    1.76      10.6 +/-    1.76  0.080 / 0.170
G16     105.8          62.4                7.8 +/-    1.18       8.6 +/-    1.18  0.090 / 0.510
G22     193.3          47.9                6.8 +/-    1.12       8.8 +/-    1.12  0.090 / 0.500
G23     327.6          57.3                3.5 +/-    0.57       4.0 +/-    0.57  0.050 / 0.050
G26     58.5           46.3                3.4 +/-    0.40       4.5 +/-    0.40  0.040 / 0.070
G31     57.1           12.2               -0.9 +/-    1.01      -2.3 +/-    1.01  0.110 / 0.160