PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/29-17:58:00
G02     222.5          64.2               14.2 +/-    1.15      15.6 +/-    1.15  0.030 / 0.060
G06     46.5           66.6               12.9 +/-    0.51      13.9 +/-    0.51  0.070 / 0.070
G12     321.5          45.7               10.0 +/-    1.15      13.4 +/-    1.15  0.040 / 0.050
G17     62.8           28.0                9.9 +/-    0.93      18.1 +/-    0.93  0.050 / 0.060
G19     43.2           47.6               11.5 +/-    0.64      15.0 +/-    0.64  0.050 / 0.090
G24     255.3          39.8               13.5 +/-    0.93      19.6 +/-    0.93  0.060 / 0.090