PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-16:43:00
G02     64.6           28.8                8.6 +/-    1.74      15.5 +/-    1.74  0.030 / 0.040
G05     51.1           57.0                8.6 +/-    0.72      10.0 +/-    0.72  0.030 / 0.050
G12     181.9          24.7                7.4 +/-    2.86      14.5 +/-    2.86  0.130 / 0.280
G13     120.7          19.7               11.0 +/-    2.22      24.3 +/-    2.22  0.100 / 0.250
G15     159.8          18.4                9.1 +/-    1.49      20.8 +/-    1.49  0.110 / 0.170
G21     277.4          21.0                9.5 +/-    2.14      20.4 +/-    2.14  0.090 / 0.190
G25     228.3          46.8                9.4 +/-    1.47      12.3 +/-    1.47  0.060 / 0.070
G29     333.2          60.9                9.5 +/-    1.33      10.7 +/-    1.33  0.070 / 0.070