PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-20:12:40
G10     299.9          52.2               12.4 +/-    0.70      15.2 +/-    0.70  0.070 / 0.090
G14     210.8          14.9               13.5 +/-    3.67      33.6 +/-    3.67  0.060 / 0.090
G15     45.7           25.6               11.7 +/-    0.63      22.6 +/-    0.63  0.040 / 0.040
G18     5.6            65.4               12.0 +/-    0.90      13.0 +/-    0.90  0.030 / 0.040
G20     72.8           17.3               11.3 +/-    1.04      26.7 +/-    1.04  0.080 / 0.260
G21     107.3          69.7               13.3 +/-    0.45      14.1 +/-    0.45  0.150 / 0.280
G24     96.5           27.4               15.2 +/-    1.32      28.1 +/-    1.32  0.070 / 0.150
G27     296.3          36.0               12.8 +/-    1.72      20.0 +/-    1.72  0.070 / 0.130
G32     212.3          31.9               13.8 +/-    0.78      23.3 +/-    0.78  0.060 / 0.110