PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/31-21:43:00
G10     253.4          29.2               14.4 +/-    2.28      25.7 +/-    2.28  0.050 / 0.050
G13     50.6           27.8                9.0 +/-    2.15      16.6 +/-    2.15  0.050 / 0.040
G15     86.4           59.1               12.1 +/-    0.89      13.8 +/-    0.89  0.110 / 0.320
G16     290.6          15.8                9.5 +/-    2.13      23.1 +/-    2.13  0.140 / 0.320
G20     254.6          15.4               14.2 +/-    3.32      35.0 +/-    3.32  0.110 / 0.310
G21     336.1          61.6                9.9 +/-    0.76      11.1 +/-    0.76  0.090 / 0.200
G26     263.1          14.4               13.1 +/-    2.13      33.0 +/-    2.13  0.030 / 0.030
G29     166.1          47.6               12.2 +/-    0.74      15.9 +/-    0.74  0.030 / 0.030