PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-23:28:00
G10     256.2          31.2               14.2 +/-    1.62      24.2 +/-    1.62  0.040 / 0.040
G13     48.3           25.9               10.2 +/-    2.14      19.5 +/-    2.14  0.040 / 0.050
G15     78.6           57.7               11.1 +/-    1.07      12.9 +/-    1.07  0.130 / 0.590
G16     287.8          15.2                8.6 +/-    2.46      21.2 +/-    2.46  0.130 / 0.640
G20     261.6          29.7                8.2 +/-    3.31      14.4 +/-    3.31  0.080 / 0.200
G21     340.5          63.9               10.4 +/-    0.79      11.4 +/-    0.79  0.130 / 0.200
G26     260.4          13.0               12.9 +/-    2.80      33.8 +/-    2.80  0.040 / 0.040
G29     166.7          44.1               11.7 +/-    0.55      16.0 +/-    0.55  0.030 / 0.040