PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/31-06:58:00
G08     264.1          16.4                6.7 +/-    1.85      16.2 +/-    1.85  0.310 / 0.500
G10     70.6           55.2                3.8 +/-    0.60       4.6 +/-    0.60  0.210 / 0.410
G11     308.1          20.0                4.7 +/-    2.13      10.4 +/-    2.13  0.230 / 0.410
G14     278.1          69.0                5.1 +/-    0.60       5.4 +/-    0.60  0.180 / 0.440
G18     309.3          36.9                3.8 +/-    2.30       5.8 +/-    2.30  0.040 / 0.060
G20     99.9           33.5                4.3 +/-    1.31       7.1 +/-    1.31  0.050 / 0.050
G21     155.6          10.9               -0.4 +/-    2.02      -1.1 +/-    2.02  0.030 / 0.030
G27     229.4          13.4                6.3 +/-    7.62      16.2 +/-    7.62  0.030 / 0.030
G31     176.9          35.4                6.8 +/-    1.28      10.8 +/-    1.28  0.050 / 0.090
G32     342.1          72.9                4.9 +/-    0.60       5.1 +/-    0.60  0.050 / 0.110