PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-16:58:00
G02     223.3          64.2                8.4 +/-    0.96       9.2 +/-    0.96  0.070 / 0.120
G06     45.9           65.7                9.1 +/-    0.52       9.9 +/-    0.52  0.070 / 0.150
G12     321.8          47.0                7.7 +/-    0.37      10.1 +/-    0.37  0.030 / 0.040
G17     63.7           27.0                6.0 +/-    1.99      11.2 +/-    1.99  0.030 / 0.040
G19     43.5           47.5                7.8 +/-    1.00      10.1 +/-    1.00  0.040 / 0.050
G24     254.2          39.6                9.9 +/-    3.26      14.5 +/-    3.26  0.040 / 0.050