PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-23:57:50
G08     307.9          20.0               10.5 +/-    1.18      23.1 +/-    1.18  0.060 / 0.070
G10     330.8          59.7                9.2 +/-    1.78      10.5 +/-    1.78  0.060 / 0.090
G14     218.4          32.8               11.2 +/-    1.27      18.5 +/-    1.27  0.050 / 0.050
G15     46.8           11.1                9.6 +/-    2.46      26.3 +/-    2.46  0.060 / 0.060
G18     38.7           59.4               11.9 +/-    1.53      13.5 +/-    1.53  0.040 / 0.060
G21     134.2          55.5               10.7 +/-    1.43      12.7 +/-    1.43  0.050 / 0.040
G24     75.2           30.6               11.6 +/-    1.20      20.1 +/-    1.20  0.090 / 0.090
G27     272.4          37.5               10.2 +/-    1.38      15.4 +/-    1.38  0.120 / 0.080
G32     223.8          49.9               11.1 +/-    1.60      14.0 +/-    1.60  0.090 / 0.150