PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-17:28:00
G02     7.9            70.8                9.4 +/-    0.69       9.9 +/-    0.69  0.040 / 0.080
G05     158.3          46.1               10.8 +/-    0.76      14.4 +/-    0.76  0.040 / 0.050
G06     46.6           26.5                7.7 +/-    0.97      14.5 +/-    0.97  0.190 / 0.440
G12     225.3          80.9                6.2 +/-    0.50       6.3 +/-    0.50  0.200 / 0.420
G19     84.8           22.7                8.8 +/-    1.73      18.2 +/-    1.73  0.030 / 0.030
G24     217.3          13.1               11.2 +/-    3.19      29.1 +/-    3.19  0.020 / 0.030
G25     312.5          41.7                9.2 +/-    0.95      13.1 +/-    0.95  0.050 / 0.090
G29     295.0          15.5                8.1 +/-    2.45      19.9 +/-    2.45  0.050 / 0.090