PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-18:28:10
G10     281.3          45.1               11.1 +/-    1.19      14.9 +/-    1.19  0.070 / 0.130
G15     49.3           37.3               10.7 +/-    0.77      16.3 +/-    0.77  0.070 / 0.100
G18     334.2          67.1               11.1 +/-    0.75      11.9 +/-    0.75  0.060 / 0.140
G20     62.7           27.0               10.4 +/-    1.31      19.4 +/-    1.31  0.060 / 0.160
G21     64.5           75.6               13.5 +/-    0.88      13.9 +/-    0.88  0.030 / 0.040
G24     110.4          21.1               15.9 +/-    0.91      34.1 +/-    0.91  0.040 / 0.050
G27     309.9          29.1                9.4 +/-    1.68      16.7 +/-    1.68  0.080 / 0.150
G29     166.2          13.4               14.8 +/-    1.78      38.3 +/-    1.78  0.080 / 0.140
G32     207.4          19.3               14.3 +/-    2.40      32.0 +/-    2.40  0.090 / 0.310