PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/03-20:12:30
G01     320.2          14.2                8.2 +/-    1.55      20.7 +/-    1.55  0.170 / 0.370
G08     261.2          15.3                8.7 +/-    1.26      21.6 +/-    1.26  0.270 / 0.320
G10     71.8           56.1                8.7 +/-    0.22      10.2 +/-    0.22  0.050 / 0.080
G11     307.1          20.7                8.7 +/-    2.78      18.8 +/-    2.78  0.050 / 0.060
G14     284.6          69.6                9.6 +/-    0.49      10.2 +/-    0.49  0.030 / 0.020
G18     98.5           30.8                9.0 +/-    1.38      15.4 +/-    1.38  0.030 / 0.020
G27     226.0          11.2               10.7 +/-    1.20      29.1 +/-    1.20  0.170 / 0.300
G31     178.9          35.2               11.5 +/-    1.81      18.2 +/-    1.81  0.120 / 0.310
G32     353.7          71.0                8.3 +/-    0.59       8.7 +/-    0.59  0.070 / 0.040