PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-19:28:00
G02     224.8          66.9               10.0 +/-    0.86      10.8 +/-    0.86  0.040 / 0.050
G06     44.9           65.1                9.5 +/-    0.46      10.4 +/-    0.46  0.050 / 0.060
G12     321.5          46.5                8.8 +/-    0.50      11.6 +/-    0.50  0.070 / 0.140
G17     63.8           27.8                7.1 +/-    2.86      13.0 +/-    2.86  0.060 / 0.080
G19     45.8           46.1                9.0 +/-    1.10      12.0 +/-    1.10  0.030 / 0.030
G24     253.5          39.0               11.5 +/-    2.11      16.9 +/-    2.11  0.030 / 0.030