PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/15-04:57:50
G01     304.6          36.0                6.8 +/-    1.50      10.6 +/-    1.50  0.070 / 0.130
G10     108.5          36.8                6.9 +/-    0.91      10.6 +/-    0.91  0.080 / 0.100
G11     279.4          27.4                6.2 +/-    2.17      11.5 +/-    2.17  0.050 / 0.060
G14     0.2            66.3                4.8 +/-    0.62       5.2 +/-    0.62  0.050 / 0.070
G18     272.1          50.6                0.3 +/-    3.11       0.4 +/-    3.11  0.080 / 0.080
G20     122.0          12.6                6.2 +/-    2.22      16.2 +/-    2.22  0.070 / 0.080
G22     310.9          27.6                5.3 +/-    3.24       9.8 +/-    3.24  0.030 / 0.040
G25     81.0           16.9                5.3 +/-    1.06      12.6 +/-    1.06  0.040 / 0.050
G31     160.3          68.2                6.9 +/-    0.40       7.4 +/-    0.40  0.040 / 0.080
G32     36.8           52.1                4.9 +/-    0.59       6.0 +/-    0.59  0.050 / 0.070