PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/30-01:58:10
G08     291.2          21.9               10.0 +/-    1.24      20.9 +/-    1.24  0.130 / 0.140
G10     23.5           62.4               10.3 +/-    0.36      11.5 +/-    0.36  0.150 / 0.140
G14     234.5          50.5               11.6 +/-    1.69      14.5 +/-    1.69  0.050 / 0.100
G18     317.8          15.4                4.7 +/-    1.73      11.7 +/-    1.73  0.060 / 0.100
G20     73.0           49.2                9.2 +/-    1.67      11.7 +/-    1.67  0.080 / 0.080
G21     149.6          35.6               11.0 +/-    0.79      17.3 +/-    0.79  0.080 / 0.140
G24     51.7           23.1                7.5 +/-    2.53      15.3 +/-    2.53  0.160 / 0.310
G27     249.0          29.0               10.6 +/-    2.23      18.9 +/-    2.23  0.210 / 0.360
G31     181.7          12.4               10.7 +/-   10.39      28.4 +/-   10.39  0.030 / 0.020
G32     257.5          71.3               10.3 +/-    0.41      10.8 +/-    0.41  0.030 / 0.020