PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-19:28:10
G08     301.6          21.8               12.9 +/-    1.13      27.3 +/-    1.13  0.080 / 0.090
G10     346.9          61.9               12.7 +/-    0.59      14.2 +/-    0.59  0.090 / 0.070
G14     223.3          39.1               16.6 +/-    2.01      24.5 +/-    2.01  0.040 / 0.050
G18     53.2           54.7               14.0 +/-    0.85      16.8 +/-    0.85  0.050 / 0.060
G21     140.5          44.5               17.3 +/-    1.04      23.5 +/-    1.04  0.050 / 0.080
G24     66.0           29.4               13.3 +/-    1.32      23.6 +/-    1.32  0.070 / 0.060
G27     262.7          35.3               15.8 +/-    1.19      25.0 +/-    1.19  0.080 / 0.120
G32     231.9          58.4               15.8 +/-    2.17      18.2 +/-    2.17  0.050 / 0.110