PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-23:43:00
G10     253.6          28.2               13.1 +/-    1.60      23.8 +/-    1.60  0.110 / 0.200
G13     51.5           29.3               10.3 +/-    0.79      18.3 +/-    0.79  0.110 / 0.230
G15     82.0           57.4               12.0 +/-    0.59      14.0 +/-    0.59  0.080 / 0.120
G16     294.3          14.2                9.4 +/-    1.59      23.8 +/-    1.59  0.080 / 0.120
G18     273.8          57.4               13.0 +/-    0.67      15.2 +/-    0.67  0.030 / 0.050
G20     45.9           44.5                9.6 +/-    0.81      13.0 +/-    0.81  0.030 / 0.050
G21     338.5          63.0               11.1 +/-    0.63      12.3 +/-    0.63  0.030 / 0.060
G26     266.8          14.0               12.3 +/-    3.07      31.3 +/-    3.07  0.030 / 0.060
G29     164.7          43.2               14.4 +/-    1.37      20.0 +/-    1.37  0.050 / 0.070