PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-06:43:00
G07     320.5          53.7                5.0 +/-    1.01       6.0 +/-    1.01  0.040 / 0.050
G08     120.2          46.7                7.9 +/-    0.72      10.5 +/-    0.72  0.030 / 0.040
G09     228.5          83.1                5.4 +/-    0.22       5.5 +/-    0.22  0.060 / 0.050
G16     44.0           14.5                1.1 +/-    3.54       2.8 +/-    3.54  0.060 / 0.050
G23     150.2          51.7                8.0 +/-    0.32       9.9 +/-    0.32  0.030 / 0.020
G27     67.6           36.0                5.6 +/-    1.42       8.8 +/-    1.42  0.030 / 0.030
G28     228.3          13.9                2.7 +/-    9.05       6.9 +/-    9.05  0.360 / 0.300
G30     292.6          27.0                4.7 +/-    1.80       8.8 +/-    1.80  0.230 / 0.390