PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/06-17:57:50
G08     315.1          15.7                6.0 +/-    2.02      14.6 +/-    2.02  0.050 / 0.060
G10     317.8          57.2                8.8 +/-    0.87      10.3 +/-    0.87  0.060 / 0.070
G14     214.8          24.6               10.9 +/-    1.91      21.6 +/-    1.91  0.130 / 0.190
G15     45.8           15.4                8.8 +/-    1.70      21.6 +/-    1.70  0.170 / 0.240
G18     29.4           61.4               11.8 +/-    1.19      13.3 +/-    1.19  0.050 / 0.080
G20     80.3           11.5                9.6 +/-    1.74      26.0 +/-    1.74  0.060 / 0.100
G21     126.9          58.3               12.8 +/-    0.55      14.8 +/-    0.55  0.250 / 0.280
G24     83.6           30.2               10.8 +/-    1.33      18.9 +/-    1.33  0.080 / 0.240
G27     282.5          38.0               10.4 +/-    0.65      15.7 +/-    0.65  0.030 / 0.040
G32     218.2          44.1               12.4 +/-    1.19      16.9 +/-    1.19  0.030 / 0.040