PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/09-15:43:00
G02     65.6           27.7                8.0 +/-    0.73      14.7 +/-    0.73  0.020 / 0.040
G05     50.9           57.2                9.3 +/-    0.42      10.8 +/-    0.42  0.030 / 0.040
G12     181.4          23.6               10.3 +/-    3.49      20.8 +/-    3.49  0.090 / 0.320
G13     120.1          20.1               13.1 +/-    1.05      28.7 +/-    1.05  0.100 / 0.240
G15     158.8          19.3               12.6 +/-    1.73      28.3 +/-    1.73  0.120 / 0.230
G21     278.0          21.5                8.2 +/-    1.75      17.5 +/-    1.75  0.060 / 0.210
G25     227.5          46.3               10.3 +/-    0.81      13.6 +/-    0.81  0.050 / 0.070
G29     333.5          61.3                8.6 +/-    0.32       9.7 +/-    0.32  0.040 / 0.070