PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-13:27:40
G02     270.1          79.6                4.6 +/-    0.72       4.7 +/-    0.72  0.050 / 0.170
G05     171.0          20.8                6.8 +/-    1.38      14.8 +/-    1.38  0.060 / 0.130
G06     39.7           50.0                4.4 +/-    0.56       5.5 +/-    0.56  0.080 / 0.130
G12     320.8          60.6                4.2 +/-    0.62       4.7 +/-    0.62  0.080 / 0.140
G17     75.6           19.2                5.9 +/-    1.02      13.3 +/-    1.02  0.100 / 0.170
G19     65.0           32.2                5.5 +/-    0.53       9.2 +/-    0.53  0.080 / 0.180
G24     239.5          30.4                8.2 +/-    1.28      14.3 +/-    1.28  0.030 / 0.040
G25     317.2          17.6                4.2 +/-    1.81       9.8 +/-    1.81  0.030 / 0.040