PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-23:12:30
G02     335.9          79.6               11.0 +/-    0.74      11.2 +/-    0.74  0.200 / 0.210
G05     164.3          31.8               17.4 +/-    0.70      29.3 +/-    0.70  0.090 / 0.170
G06     40.1           44.3                9.4 +/-    1.35      12.8 +/-    1.35  0.110 / 0.220
G12     315.5          65.9               11.6 +/-    0.94      12.6 +/-    0.94  0.300 / 0.270
G17     83.8           12.7                9.4 +/-    3.18      24.6 +/-    3.18  0.040 / 0.030
G19     72.8           28.0                9.9 +/-    1.72      18.1 +/-    1.72  0.040 / 0.030
G24     229.5          24.1               16.5 +/-    1.97      32.9 +/-    1.97  0.030 / 0.040
G25     317.2          26.8               10.6 +/-    2.28      19.9 +/-    2.28  0.030 / 0.040