PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/17-00:27:30
G08     300.1          20.8                7.8 +/-    2.21      16.9 +/-    2.21  0.060 / 0.100
G10     6.4            62.7                6.4 +/-    1.02       7.1 +/-    1.02  0.070 / 0.120
G14     227.2          43.0                9.9 +/-    2.05      13.8 +/-    2.05  0.080 / 0.170
G20     62.6           53.2                8.1 +/-    0.67       9.8 +/-    0.67  0.090 / 0.140
G21     145.8          43.5                9.3 +/-    1.27      12.8 +/-    1.27  0.050 / 0.070
G24     58.9           27.0                7.7 +/-    1.10      14.3 +/-    1.10  0.060 / 0.080
G27     257.2          33.2                9.6 +/-    2.80      15.7 +/-    2.80  0.110 / 0.230
G32     240.7          65.7                8.9 +/-    1.05       9.7 +/-    1.05  0.110 / 0.280