PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-03:27:50
G01     224.1          15.0                6.1 +/-    1.21      15.3 +/-    1.21  0.040 / 0.040
G03     281.7          68.2                3.2 +/-    1.00       3.5 +/-    1.00  0.040 / 0.030
G09     297.7          14.6                3.6 +/-    1.06       9.1 +/-    1.06  0.100 / 0.270
G14     89.0           22.8                3.2 +/-    1.59       6.7 +/-    1.59  0.110 / 0.270
G16     141.7          48.5                6.9 +/-    0.59       8.8 +/-    0.59  0.150 / 0.240
G22     212.7          68.3                4.6 +/-    0.55       5.0 +/-    0.55  0.150 / 0.210
G23     308.9          38.5                4.1 +/-    0.84       6.1 +/-    0.84  0.040 / 0.080
G26     90.7           54.3                5.2 +/-    0.53       6.2 +/-    0.53  0.040 / 0.080
G31     46.5           29.5                2.3 +/-    1.23       4.0 +/-    1.23  0.060 / 0.100