PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/29-22:42:50
G10     251.0          26.1               20.4 +/-    1.41      38.8 +/-    1.41  0.110 / 0.390
G13     54.3           31.2               16.2 +/-    1.15      27.7 +/-    1.15  0.120 / 0.310
G15     87.3           57.8               19.3 +/-    0.47      22.3 +/-    0.47  0.090 / 0.330
G16     297.8          14.3               13.8 +/-    2.07      34.9 +/-    2.07  0.080 / 0.330
G18     269.4          55.9               19.9 +/-    1.03      23.4 +/-    1.03  0.090 / 0.150
G20     43.6           47.4               15.4 +/-    0.47      20.1 +/-    0.47  0.070 / 0.130
G21     335.0          61.1               17.1 +/-    0.76      19.2 +/-    0.76  0.040 / 0.050
G26     270.2          15.2               19.8 +/-    2.39      49.0 +/-    2.39  0.040 / 0.060
G29     163.6          46.0               21.3 +/-    1.31      28.3 +/-    1.31  0.050 / 0.070