PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-19:43:00
G02     258.8          78.7                9.6 +/-    0.22       9.8 +/-    0.22  0.130 / 0.310
G05     169.5          20.5               11.4 +/-    1.25      24.7 +/-    1.25  0.470 / 0.380
G06     39.6           54.0                9.2 +/-    0.77      11.0 +/-    0.77  0.030 / 0.030
G12     320.7          54.6                8.0 +/-    0.96       9.6 +/-    0.96  0.030 / 0.030
G17     73.4           21.0                8.3 +/-    2.24      17.9 +/-    2.24  0.100 / 0.130
G19     62.1           34.6                8.2 +/-    1.14      13.1 +/-    1.14  0.070 / 0.100
G24     240.6          31.9                9.6 +/-    1.28      16.2 +/-    1.28  0.090 / 0.140
G25     317.0          15.6                6.8 +/-    2.53      16.7 +/-    2.53  0.090 / 0.140