PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/15-00:42:30
G02     17.3           67.5                9.4 +/-    0.56      10.1 +/-    0.56  0.020 / 0.030
G05     155.0          48.1               15.2 +/-    1.28      19.6 +/-    1.28  0.020 / 0.020
G06     46.5           27.6                8.3 +/-    1.45      15.3 +/-    1.45  0.040 / 0.050
G12     252.5          80.0               11.0 +/-    1.21      11.1 +/-    1.21  0.030 / 0.050
G19     86.6           20.4               12.2 +/-    1.86      26.5 +/-    1.86  0.140 / 0.410
G24     218.4          13.2               15.8 +/-    3.52      40.9 +/-    3.52  0.150 / 0.420
G25     312.7          40.5               10.1 +/-    1.08      14.6 +/-    1.08  0.050 / 0.080
G29     295.9          16.5                9.6 +/-    1.46      23.2 +/-    1.46  0.050 / 0.080