PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-19:42:50
G01     320.3          13.7                6.8 +/-    2.10      17.3 +/-    2.10  0.130 / 0.350
G08     262.0          15.6                9.2 +/-    2.72      22.7 +/-    2.72  0.170 / 0.330
G10     70.7           56.4                8.8 +/-    0.52      10.3 +/-    0.52  0.050 / 0.080
G11     307.8          20.2                7.3 +/-    1.55      15.9 +/-    1.55  0.050 / 0.080
G14     282.5          69.2               10.2 +/-    0.40      10.9 +/-    0.40  0.050 / 0.030
G18     98.1           31.1                7.5 +/-    1.21      12.9 +/-    1.21  0.040 / 0.030
G27     226.5          11.6                8.8 +/-    1.41      23.8 +/-    1.41  0.110 / 0.280
G31     178.8          34.8               10.9 +/-    0.87      17.3 +/-    0.87  0.090 / 0.180
G32     352.7          71.3                9.1 +/-    0.69       9.5 +/-    0.69  0.030 / 0.020