PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/23-23:57:50
G08     300.2          20.9                8.2 +/-    1.71      17.7 +/-    1.71  0.050 / 0.060
G10     5.1            62.7                7.2 +/-    0.93       8.0 +/-    0.93  0.040 / 0.080
G14     226.7          42.2               11.2 +/-    1.91      15.8 +/-    1.91  0.100 / 0.140
G20     61.9           53.4                8.6 +/-    0.62      10.4 +/-    0.62  0.100 / 0.130
G21     145.4          44.2                9.7 +/-    0.72      13.2 +/-    0.72  0.030 / 0.030
G24     59.6           27.3                7.3 +/-    1.02      13.6 +/-    1.02  0.030 / 0.030
G27     257.8          33.5               11.1 +/-    2.53      18.2 +/-    2.53  0.120 / 0.210
G32     239.7          65.4                9.9 +/-    0.72      10.7 +/-    0.72  0.120 / 0.230