PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-04:43:00
G02     36.9           52.3                4.8 +/-    1.05       5.8 +/-    1.05  0.040 / 0.030
G05     131.4          64.1                6.7 +/-    0.68       7.3 +/-    0.68  0.030 / 0.030
G06     54.7           15.1                3.2 +/-    4.20       8.0 +/-    4.20  0.460 / 0.350
G12     198.9          66.3                5.8 +/-    0.44       6.3 +/-    0.44  0.270 / 0.460
G20     204.8          13.8                3.7 +/-    3.36       9.5 +/-    3.36  0.030 / 0.020
G25     295.0          53.9                4.8 +/-    3.56       5.8 +/-    3.56  0.030 / 0.030
G29     308.9          29.6                3.8 +/-    0.80       6.7 +/-    0.80  0.030 / 0.040