PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-13:58:00
G02     281.2          79.6                7.2 +/-    0.94       7.3 +/-    0.94  0.130 / 0.190
G05     170.7          23.5                9.8 +/-    2.43      19.8 +/-    2.43  0.070 / 0.200
G06     40.2           46.8                6.2 +/-    0.38       8.2 +/-    0.38  0.090 / 0.150
G12     319.2          65.7                6.1 +/-    1.21       6.6 +/-    1.21  0.120 / 0.170
G17     80.7           14.2                7.4 +/-    2.18      18.8 +/-    2.18  0.060 / 0.110
G19     65.1           35.3                7.4 +/-    0.41      11.8 +/-    0.41  0.060 / 0.170
G24     231.4          27.3                8.6 +/-    2.25      16.0 +/-    2.25  0.040 / 0.040
G25     317.5          24.7                5.0 +/-    1.86       9.9 +/-    1.86  0.030 / 0.040