PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/03-03:57:40
G10     256.2          31.0               12.8 +/-    1.74      22.0 +/-    1.74  0.130 / 0.430
G13     48.4           26.2                7.5 +/-    1.51      14.3 +/-    1.51  0.130 / 0.420
G15     75.0           55.8                8.3 +/-    0.47       9.8 +/-    0.47  0.060 / 0.040
G16     288.5          15.0                7.4 +/-    2.61      18.3 +/-    2.61  0.040 / 0.050
G20     293.4          63.5                9.9 +/-    0.35      11.0 +/-    0.35  0.090 / 0.180
G21     341.2          64.2                9.0 +/-    0.97       9.8 +/-    0.97  0.090 / 0.210
G26     260.6          12.9               10.1 +/-   16.44      26.4 +/-   16.44  0.120 / 0.350
G27     322.1          10.3              -14.9 +/-   22.59     -41.4 +/-   22.59  0.040 / 0.040
G29     166.7          43.6               11.4 +/-    0.87      15.6 +/-    0.87  0.030 / 0.040