PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-08:27:30
G02     251.6          79.3                6.5 +/-    0.67       6.6 +/-    0.67  0.080 / 0.200
G05     172.8          15.7                5.9 +/-    3.56      14.5 +/-    3.56  0.120 / 0.210
G06     40.0           56.8                5.3 +/-    0.62       6.2 +/-    0.62  0.080 / 0.080
G12     321.9          55.5                4.7 +/-    0.91       5.6 +/-    0.91  0.080 / 0.090
G17     71.6           20.8                5.3 +/-    1.33      11.4 +/-    1.33  0.140 / 0.190
G19     59.3           35.8                4.1 +/-    0.67       6.4 +/-    0.67  0.100 / 0.220
G24     245.5          33.9                7.8 +/-    0.88      12.6 +/-    0.88  0.030 / 0.040
G25     316.3          13.3                4.1 +/-    3.14      10.7 +/-    3.14  0.030 / 0.030