PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-01:57:40
G02     63.4           29.3                8.8 +/-    0.95      15.6 +/-    0.95  0.070 / 0.120
G05     52.4           56.0                9.0 +/-    0.52      10.6 +/-    0.52  0.070 / 0.110
G12     183.5          27.6               10.8 +/-    1.15      19.9 +/-    1.15  0.110 / 0.310
G13     124.9          18.1               12.8 +/-    1.16      29.4 +/-    1.16  0.090 / 0.290
G15     161.7          15.4               13.8 +/-    2.06      33.9 +/-    2.06  0.030 / 0.040
G20     220.5          14.9               15.9 +/-    2.10      39.5 +/-    2.10  0.040 / 0.050
G21     274.6          19.4               10.7 +/-    1.71      23.9 +/-    1.71  0.080 / 0.220
G25     231.8          48.9               11.7 +/-    1.84      15.0 +/-    1.84  0.080 / 0.190
G29     330.4          57.9               10.9 +/-    1.19      12.6 +/-    1.19  0.080 / 0.060