PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/14-12:12:50
G02     252.8          78.0                4.5 +/-    0.42       4.6 +/-    0.42  0.160 / 0.410
G05     173.1          16.4                3.4 +/-    2.69       8.1 +/-    2.69  0.140 / 0.370
G06     39.9           54.3                4.5 +/-    0.70       5.4 +/-    0.70  0.040 / 0.040
G12     321.7          57.0                3.8 +/-    0.76       4.5 +/-    0.76  0.040 / 0.040
G17     72.3           21.2                3.8 +/-    1.54       8.1 +/-    1.54  0.090 / 0.130
G19     60.9           34.8                4.4 +/-    1.68       7.0 +/-    1.68  0.060 / 0.080
G24     243.9          33.0                6.0 +/-    2.20       9.9 +/-    2.20  0.110 / 0.100