PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/06-17:42:40
G08     319.7          11.9                7.9 +/-    2.78      21.1 +/-    2.78  0.060 / 0.060
G10     306.6          54.3                8.2 +/-    0.93       9.9 +/-    0.93  0.060 / 0.080
G14     212.2          18.3               11.0 +/-    0.74      25.2 +/-    0.74  0.080 / 0.260
G15     45.4           21.2                8.3 +/-    2.52      17.7 +/-    2.52  0.220 / 0.270
G18     16.6           63.9                9.6 +/-    0.34      10.5 +/-    0.34  0.070 / 0.100
G20     75.4           15.8                8.8 +/-    2.03      21.5 +/-    2.03  0.080 / 0.090
G21     117.4          64.2               11.2 +/-    0.78      12.3 +/-    0.78  0.160 / 0.290
G24     91.5           28.8               11.0 +/-    1.78      19.7 +/-    1.78  0.470 / 0.330
G27     291.2          37.1                7.2 +/-    3.39      11.0 +/-    3.39  0.030 / 0.040
G32     214.2          37.4               11.2 +/-    1.62      17.0 +/-    1.62  0.030 / 0.030