PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-01:43:00
G08     308.4          19.8                8.6 +/-    2.85      19.0 +/-    2.85  0.120 / 0.060
G10     329.5          59.5               10.3 +/-    0.75      11.8 +/-    0.75  0.090 / 0.080
G14     218.0          32.3               12.5 +/-    1.70      20.9 +/-    1.70  0.050 / 0.040
G15     46.7           12.5                9.3 +/-    1.89      24.5 +/-    1.89  0.040 / 0.040
G18     36.4           60.1               10.6 +/-    1.07      12.0 +/-    1.07  0.060 / 0.070
G21     133.6          56.9               13.2 +/-    0.38      15.5 +/-    0.38  0.060 / 0.070
G24     75.9           30.6               10.9 +/-    1.07      18.8 +/-    1.07  0.040 / 0.030
G27     273.2          37.6               11.4 +/-    2.75      17.3 +/-    2.75  0.040 / 0.030
G32     223.3          50.4               11.5 +/-    1.64      14.4 +/-    1.64  0.100 / 0.150