PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/10-17:27:50
G08     319.3          12.2                6.0 +/-    1.64      15.9 +/-    1.64  0.070 / 0.080
G10     307.6          54.6                7.6 +/-    0.77       9.1 +/-    0.77  0.070 / 0.080
G14     212.5          18.7                8.5 +/-    1.79      19.2 +/-    1.79  0.030 / 0.040
G15     45.4           20.6                6.6 +/-    0.65      14.4 +/-    0.65  0.030 / 0.040
G18     18.0           63.6                7.0 +/-    0.60       7.7 +/-    0.60  0.080 / 0.110
G20     75.8           15.5                7.0 +/-    1.39      17.2 +/-    1.39  0.080 / 0.140
G21     118.6          63.4                9.7 +/-    1.00      10.7 +/-    1.00  0.110 / 0.390
G24     90.8           29.0                7.4 +/-    0.72      13.3 +/-    0.72  0.110 / 0.350
G27     290.5          37.3                8.5 +/-    1.25      13.0 +/-    1.25  0.050 / 0.090
G32     214.5          38.1               12.4 +/-    0.82      18.6 +/-    0.82  0.050 / 0.080