PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-03:42:50
G08     298.5          21.8                8.9 +/-    1.34      18.8 +/-    1.34  0.060 / 0.090
G10     4.4            62.7                7.3 +/-    1.11       8.1 +/-    1.11  0.060 / 0.100
G14     226.8          43.6               10.9 +/-    2.28      15.0 +/-    2.28  0.030 / 0.030
G20     61.0           53.9                6.7 +/-    0.35       8.1 +/-    0.35  0.030 / 0.030
G21     145.3          43.7                8.3 +/-    0.91      11.4 +/-    0.91  0.050 / 0.080
G24     59.0           26.8                4.2 +/-    1.30       7.8 +/-    1.30  0.050 / 0.090
G27     258.5          33.4                8.8 +/-    3.29      14.5 +/-    3.29  0.060 / 0.110
G32     238.8          63.5                9.6 +/-    0.94      10.6 +/-    0.94  0.110 / 0.080