PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/13-03:13:00
G08     288.2          22.1               10.0 +/-    1.21      20.9 +/-    1.21  0.090 / 0.130
G10     27.7           62.2                6.5 +/-    1.06       7.2 +/-    1.06  0.100 / 0.140
G14     236.8          52.7               10.1 +/-    1.93      12.3 +/-    1.93  0.030 / 0.030
G18     317.6          17.2                7.9 +/-    2.58      18.6 +/-    2.58  0.050 / 0.040
G20     75.5           48.1                9.7 +/-    1.59      12.5 +/-    1.59  0.050 / 0.120
G21     150.4          33.4                9.8 +/-    2.02      16.1 +/-    2.02  0.050 / 0.120
G24     50.0           21.8                6.9 +/-    3.80      14.5 +/-    3.80  0.090 / 0.090
G27     247.2          27.8               10.6 +/-    1.50      19.4 +/-    1.50  0.080 / 0.090
G31     181.3          14.1               10.3 +/-    2.42      26.1 +/-    2.42  0.150 / 0.310
G32     262.3          72.0                7.7 +/-    0.43       8.1 +/-    0.43  0.290 / 0.220