PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/06-14:28:10
G02     228.7          67.8                6.5 +/-    0.96       7.0 +/-    0.96  0.050 / 0.090
G06     43.0           63.3                7.1 +/-    0.46       7.9 +/-    0.46  0.060 / 0.090
G12     320.8          46.2                5.0 +/-    0.80       6.6 +/-    0.80  0.090 / 0.490
G17     64.2           27.9                4.8 +/-    0.49       8.7 +/-    0.49  0.080 / 0.400
G19     52.0           40.7                6.6 +/-    0.75       9.4 +/-    0.75  0.040 / 0.110
G24     253.2          37.6                6.6 +/-    1.25      10.1 +/-    1.25  0.050 / 0.100
G28     127.5          11.8                6.6 +/-    3.72      17.7 +/-    3.72  0.040 / 0.070