PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/19-18:57:40
G08     317.8          13.7               17.7 +/-    1.34      45.5 +/-    1.34  0.080 / 0.090
G10     310.5          55.4                9.3 +/-    0.85      11.0 +/-    0.85  0.050 / 0.080
G14     213.1          20.9               12.8 +/-    1.03      27.5 +/-    1.03  0.070 / 0.110
G15     45.5           19.3                8.7 +/-    0.88      19.4 +/-    0.88  0.070 / 0.120
G18     20.7           63.2                9.2 +/-    0.59      10.2 +/-    0.59  0.100 / 0.230
G20     77.4           13.7                9.4 +/-    1.40      24.1 +/-    1.40  0.090 / 0.210
G21     120.8          63.1               14.4 +/-    0.67      15.9 +/-    0.67  0.030 / 0.050
G24     88.8           29.4               11.1 +/-    0.60      19.6 +/-    0.60  0.030 / 0.040
G27     288.0          37.6               10.1 +/-    1.10      15.3 +/-    1.10  0.090 / 0.250
G32     215.6          39.3               11.8 +/-    1.15      17.4 +/-    1.15  0.090 / 0.230