PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/01-03:27:30
G08     294.6          23.3               10.1 +/-    1.94      20.5 +/-    1.94  0.040 / 0.070
G10     358.5          62.8                8.7 +/-    0.44       9.6 +/-    0.44  0.050 / 0.070
G14     227.8          45.6               10.8 +/-    1.72      14.4 +/-    1.72  0.050 / 0.080
G18     57.6           54.0                7.0 +/-    1.22       8.4 +/-    1.22  0.050 / 0.090
G21     144.4          43.3               10.7 +/-    1.64      14.8 +/-    1.64  0.030 / 0.040
G24     60.2           27.8                5.2 +/-    1.18       9.5 +/-    1.18  0.040 / 0.040
G27     255.8          32.9               10.5 +/-    0.96      17.4 +/-    0.96  0.090 / 0.080
G32     240.4          64.3               11.2 +/-    1.13      12.3 +/-    1.13  0.060 / 0.080