PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/02-18:27:40
G01     319.0          19.5                7.7 +/-    2.51      17.2 +/-    2.51  0.040 / 0.060
G08     257.9          14.1                6.7 +/-    3.85      17.0 +/-    3.85  0.040 / 0.040
G10     79.3           51.8                9.6 +/-    1.13      11.9 +/-    1.13  0.120 / 0.480
G11     307.1          19.5                7.0 +/-    1.46      15.6 +/-    1.46  0.120 / 0.490
G14     281.6          67.5               10.3 +/-    0.71      11.1 +/-    0.71  0.060 / 0.080
G20     105.8          26.9                8.9 +/-    1.21      16.6 +/-    1.21  0.060 / 0.070
G31     176.3          40.2               10.2 +/-    1.31      14.8 +/-    1.31  0.040 / 0.040
G32     9.2            67.5                8.8 +/-    0.51       9.5 +/-    0.51  0.050 / 0.040