PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/16-04:42:50
G01     49.6           24.6                4.2 +/-    1.40       8.2 +/-    1.40  0.040 / 0.050
G06     177.3          23.0                5.4 +/-    1.43      11.2 +/-    1.43  0.040 / 0.050
G07     145.3          14.6                6.2 +/-    3.13      15.6 +/-    3.13  0.100 / 0.220
G11     46.1           20.9                3.8 +/-    2.51       8.1 +/-    2.51  0.150 / 0.210
G13     250.6          32.3                4.8 +/-    1.20       8.0 +/-    1.20  0.240 / 0.350
G15     282.0          16.7                3.5 +/-    1.05       8.2 +/-    1.05  0.130 / 0.310
G17     309.2          79.7                6.6 +/-    0.88       6.7 +/-    0.88  0.050 / 0.050
G19     243.8          61.0                7.0 +/-    1.24       7.9 +/-    1.24  0.050 / 0.050
G28     35.7           58.6                6.7 +/-    0.94       7.7 +/-    0.94  0.050 / 0.040
G30     150.3          47.5                7.0 +/-    0.82       9.1 +/-    0.82  0.040 / 0.040