PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-00:58:00
G10     251.9          29.2               13.5 +/-    1.50      24.0 +/-    1.50  0.040 / 0.060
G13     51.6           28.0                9.1 +/-    1.26      16.6 +/-    1.26  0.040 / 0.050
G15     81.7           56.7               11.2 +/-    0.83      13.1 +/-    0.83  0.060 / 0.140
G16     295.4          15.2                9.3 +/-    5.00      23.0 +/-    5.00  0.080 / 0.130
G20     272.1          51.6               12.2 +/-    1.31      15.0 +/-    1.31  0.110 / 0.620
G21     335.9          60.9               11.2 +/-    0.61      12.6 +/-    0.61  0.130 / 0.510
G26     267.5          14.8               10.5 +/-    2.88      26.3 +/-    2.88  0.060 / 0.160
G29     163.3          47.0               11.9 +/-    0.87      15.6 +/-    0.87  0.080 / 0.140