PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/31-05:12:40
G03     222.8          63.7                8.0 +/-    0.90       8.8 +/-    0.90  0.120 / 0.470
G07     253.4          14.2                8.4 +/-    3.31      21.3 +/-    3.31  0.140 / 0.450
G09     307.5          24.0                7.1 +/-    1.22      14.1 +/-    1.22  0.140 / 0.350
G14     104.4          11.3                6.2 +/-    1.58      16.8 +/-    1.58  0.140 / 0.390
G16     107.9          62.3                8.8 +/-    0.60       9.8 +/-    0.60  0.090 / 0.110
G22     193.3          48.4                8.3 +/-    0.34      10.7 +/-    0.34  0.100 / 0.110
G23     327.8          57.3                7.4 +/-    0.99       8.7 +/-    0.99  0.040 / 0.050
G26     59.2           46.8                7.5 +/-    1.12       9.9 +/-    1.12  0.040 / 0.040
G31     56.7           12.6                3.6 +/-    2.01       9.4 +/-    2.01  0.040 / 0.050