PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-02:12:30
G10     253.4          29.0               10.8 +/-    1.50      19.3 +/-    1.50  0.150 / 0.250
G13     50.8           28.0                8.9 +/-    1.18      16.3 +/-    1.18  0.130 / 0.340
G15     82.1           57.6               11.1 +/-    0.73      12.8 +/-    0.73  0.050 / 0.040
G16     291.3          15.5                6.7 +/-    1.04      16.6 +/-    1.04  0.050 / 0.040
G20     271.5          50.0               10.7 +/-    2.82      13.5 +/-    2.82  0.170 / 0.190
G21     336.7          61.9               10.2 +/-    0.71      11.4 +/-    0.71  0.100 / 0.250
G26     263.3          14.3                8.5 +/-    2.59      21.5 +/-    2.59  0.030 / 0.030
G29     166.1          47.2               11.6 +/-    0.86      15.1 +/-    0.86  0.040 / 0.040