PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/23-22:12:30
G01     295.8          38.7                8.5 +/-    2.52      12.7 +/-    2.52  0.070 / 0.090
G03     310.3          13.1               10.1 +/-    2.75      26.4 +/-    2.75  0.060 / 0.120
G10     116.3          32.6               11.2 +/-    1.71      18.7 +/-    1.71  0.070 / 0.080
G11     269.6          27.4                9.8 +/-    1.70      18.2 +/-    1.70  0.090 / 0.060
G14     18.9           60.8                9.3 +/-    1.07      10.5 +/-    1.07  0.020 / 0.020
G22     312.7          33.9                8.5 +/-    1.19      13.8 +/-    1.19  0.030 / 0.020
G25     70.2           18.5                9.1 +/-    1.60      20.8 +/-    1.60  0.090 / 0.160
G31     158.6          74.7               11.5 +/-    0.53      11.9 +/-    0.53  0.080 / 0.170
G32     45.8           46.1                8.9 +/-    0.96      11.9 +/-    0.96  0.040 / 0.050