PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-10:27:40
G10     250.1          25.8                5.3 +/-    1.76      10.1 +/-    1.76  0.100 / 0.380
G13     54.6           30.9                5.0 +/-    1.86       8.6 +/-    1.86  0.130 / 0.330
G15     84.9           56.6                6.6 +/-    0.92       7.7 +/-    0.92  0.040 / 0.040
G16     297.4          14.9                1.8 +/-    3.52       4.6 +/-    3.52  0.040 / 0.040
G20     37.1           54.8                5.3 +/-    0.76       6.3 +/-    0.76  0.040 / 0.040
G21     335.8          61.2                4.3 +/-    0.54       4.8 +/-    0.54  0.040 / 0.050
G26     268.3          15.8                4.5 +/-    1.77      11.0 +/-    1.77  0.090 / 0.140
G29     164.0          49.1                8.1 +/-    0.60      10.3 +/-    0.60  0.080 / 0.100