PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-06:43:00
G01     61.1           30.8                3.0 +/-    0.86       5.2 +/-    0.86  0.030 / 0.040
G06     183.5          10.6              -14.0 +/-   28.07     -38.5 +/-   28.07  0.030 / 0.030
G07     141.8          22.6                6.1 +/-    1.75      12.6 +/-    1.75  0.030 / 0.020
G11     49.0           24.5                3.5 +/-    2.28       6.8 +/-    2.28  0.020 / 0.030
G13     265.3          35.3                5.4 +/-    2.09       8.5 +/-    2.09  0.100 / 0.170
G15     294.3          16.7                2.2 +/-    1.12       5.3 +/-    1.12  0.100 / 0.190
G17     258.7          76.8                5.4 +/-    0.40       5.6 +/-    0.40  0.120 / 0.260
G19     232.2          51.3                5.6 +/-    2.20       7.0 +/-    2.20  0.140 / 0.240
G28     35.4           56.6                5.3 +/-    0.77       6.2 +/-    0.77  0.060 / 0.120
G30     142.4          51.8                6.4 +/-    0.26       7.9 +/-    0.26  0.070 / 0.110