PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/18-23:13:00
G10     269.9          40.0                8.7 +/-    2.23      12.7 +/-    2.23  0.170 / 0.230
G13     40.7           16.1                8.2 +/-    4.37      19.8 +/-    4.37  0.110 / 0.170
G15     58.9           50.0                6.5 +/-    0.70       8.2 +/-    0.70  0.040 / 0.040
G16     274.8          11.4                7.4 +/-    4.83      20.1 +/-    4.83  0.040 / 0.040
G20     271.1          32.8                4.9 +/-    1.15       8.0 +/-    1.15  0.120 / 0.530
G21     6.1            73.0                8.7 +/-    0.71       9.0 +/-    0.71  0.210 / 0.720
G24     116.5          15.9                9.0 +/-    1.37      21.8 +/-    1.37  0.160 / 0.580
G27     317.5          20.7                6.6 +/-    3.34      14.2 +/-    3.34  0.140 / 0.500
G29     168.6          29.6                8.3 +/-    1.46      14.7 +/-    1.46  0.090 / 0.210
G32     204.2          13.1                9.9 +/-    1.44      25.8 +/-    1.44  0.090 / 0.230