PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/16-03:43:00
G01     321.1          11.3              -13.9 +/-   30.42     -37.6 +/-   30.42  0.080 / 0.120
G08     269.0          17.5                8.4 +/-    2.29      19.5 +/-    2.29  0.070 / 0.090
G10     65.6           56.4                5.6 +/-    0.28       6.6 +/-    0.28  0.030 / 0.030
G14     268.7          66.8                6.4 +/-    1.06       6.9 +/-    1.06  0.030 / 0.030
G18     311.5          34.0                3.5 +/-    0.96       5.7 +/-    0.96  0.250 / 0.580
G20     96.9           35.9                5.3 +/-    0.82       8.3 +/-    0.82  0.310 / 0.470
G21     155.5          14.6                6.6 +/-    2.07      16.7 +/-    2.07  0.050 / 0.050
G27     231.2          15.4                9.3 +/-    1.73      22.9 +/-    1.73  0.040 / 0.050
G31     176.8          32.9                7.3 +/-    1.85      12.0 +/-    1.85  0.020 / 0.020
G32     338.6          73.9                5.0 +/-    0.41       5.2 +/-    0.41  0.020 / 0.030