PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-00:27:40
G05     51.7           10.2                8.8 +/-    2.59      24.3 +/-    2.59  0.140 / 0.280
G10     241.1          19.5               12.4 +/-    3.99      27.5 +/-    3.99  0.130 / 0.290
G13     65.4           34.0               11.7 +/-    1.16      18.9 +/-    1.16  0.040 / 0.070
G15     109.3          56.3               13.4 +/-    0.50      15.7 +/-    0.50  0.040 / 0.060
G16     308.4          14.0                8.2 +/-    2.47      20.9 +/-    2.47  0.080 / 0.130
G20     255.8          42.5               12.9 +/-    2.14      18.0 +/-    2.14  0.070 / 0.110
G21     320.8          51.7               10.8 +/-    0.92      13.3 +/-    0.92  0.030 / 0.040
G26     280.6          18.9                9.1 +/-    1.42      20.6 +/-    1.42  0.030 / 0.040
G29     157.7          62.3               12.7 +/-    0.46      14.1 +/-    0.46  0.120 / 0.290