PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/04-21:43:00
G01     287.2          40.7                9.2 +/-    1.12      13.2 +/-    1.12  0.060 / 0.080
G03     312.8          18.8               15.6 +/-    1.62      35.4 +/-    1.62  0.050 / 0.090
G10     121.8          27.2               18.1 +/-    1.50      33.7 +/-    1.50  0.030 / 0.020
G11     262.6          25.5               17.0 +/-    3.97      32.9 +/-    3.97  0.030 / 0.020
G14     28.7           56.9               14.6 +/-    1.08      17.1 +/-    1.08  0.090 / 0.130
G22     314.0          40.0               14.5 +/-    0.80      21.1 +/-    0.80  0.080 / 0.160
G25     63.5           18.7               15.0 +/-    2.37      34.1 +/-    2.37  0.040 / 0.050
G26     157.0          14.2               19.1 +/-    1.95      48.4 +/-    1.95  0.050 / 0.050
G31     128.2          80.4               17.4 +/-    0.49      17.6 +/-    0.49  0.050 / 0.070
G32     52.6           41.2               13.4 +/-    1.55      19.1 +/-    1.55  0.050 / 0.060