PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/07-12:43:10
G02     201.7          21.5                3.2 +/-    2.40       6.8 +/-    2.40  0.080 / 0.120
G06     166.9          58.3                6.0 +/-    1.18       6.9 +/-    1.18  0.070 / 0.110
G13     223.4          11.1                3.6 +/-    1.96       9.9 +/-    1.96  0.040 / 0.080
G17     22.2           59.2                3.4 +/-    0.39       3.9 +/-    0.39  0.050 / 0.080
G19     339.5          70.2                3.9 +/-    0.54       4.2 +/-    0.54  0.040 / 0.040
G24     308.0          30.9                3.6 +/-    1.32       6.3 +/-    1.32  0.040 / 0.040
G28     86.8           43.5                4.0 +/-    0.82       5.5 +/-    0.82  0.050 / 0.050
G30     157.8          12.4                2.8 +/-    2.15       7.4 +/-    2.15  0.050 / 0.040