PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/25-00:42:50
G08     320.1          11.6                7.5 +/-    2.36      20.1 +/-    2.36  0.030 / 0.040
G10     302.5          53.0                9.3 +/-    0.62      11.3 +/-    0.62  0.040 / 0.050
G14     211.2          17.3               11.5 +/-    2.18      27.1 +/-    2.18  0.070 / 0.110
G15     45.8           25.9               10.1 +/-    0.96      19.3 +/-    0.96  0.060 / 0.140
G18     5.5            65.4               10.1 +/-    0.79      11.0 +/-    0.79  0.040 / 0.040
G20     74.7           14.5                9.2 +/-    1.30      23.1 +/-    1.30  0.040 / 0.040
G21     108.6          70.8               10.9 +/-    0.46      11.5 +/-    0.46  0.060 / 0.090
G24     94.6           28.0               12.3 +/-    1.06      22.5 +/-    1.06  0.050 / 0.080
G27     293.9          36.6               11.2 +/-    1.65      17.3 +/-    1.65  0.100 / 0.280
G32     213.0          34.4               14.5 +/-    2.01      23.4 +/-    2.01  0.170 / 0.350