PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-15:13:00
G02     59.3           32.6                5.4 +/-    0.96       9.0 +/-    0.96  0.030 / 0.030
G05     60.8           64.3                7.1 +/-    0.54       7.7 +/-    0.54  0.020 / 0.030
G12     182.6          31.5                8.6 +/-    1.22      14.6 +/-    1.22  0.070 / 0.110
G13     126.6          14.9               10.9 +/-    1.90      27.1 +/-    1.90  0.060 / 0.100
G15     163.0          13.0                8.7 +/-   11.00      22.8 +/-   11.00  0.210 / 0.420
G21     271.5          16.7                7.4 +/-    1.98      17.6 +/-    1.98  0.200 / 0.520
G25     237.7          52.2                8.3 +/-    2.87      10.2 +/-    2.87  0.220 / 0.410
G29     328.1          53.7                7.0 +/-    0.53       8.5 +/-    0.53  0.160 / 0.380