PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/17-01:27:40
G08     316.6          14.9                7.0 +/-    2.44      17.5 +/-    2.44  0.060 / 0.060
G10     311.2          55.5                8.1 +/-    1.50       9.6 +/-    1.50  0.050 / 0.070
G14     213.1          22.5               12.6 +/-    2.55      26.2 +/-    2.55  0.060 / 0.060
G15     45.6           21.4                8.1 +/-    3.23      17.2 +/-    3.23  0.070 / 0.050
G18     16.7           63.9                8.8 +/-    0.46       9.7 +/-    0.46  0.040 / 0.030
G20     78.7           10.9                8.9 +/-    1.54      24.3 +/-    1.54  0.040 / 0.030
G21     119.7          66.6               11.1 +/-    0.83      12.0 +/-    0.83  0.070 / 0.090
G24     88.3           29.6               10.7 +/-    1.14      18.9 +/-    1.14  0.060 / 0.090
G27     287.0          37.8                6.6 +/-    1.11      10.0 +/-    1.11  0.140 / 0.370
G32     215.9          40.1               10.8 +/-    0.84      15.6 +/-    0.84  0.180 / 0.240