PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-00:12:30
G02     33.7           55.0               11.4 +/-    0.89      13.6 +/-    0.89  0.040 / 0.040
G05     136.0          62.7               14.1 +/-    0.38      15.6 +/-    0.38  0.020 / 0.040
G06     54.2           14.8                9.6 +/-    1.57      24.1 +/-    1.57  0.040 / 0.030
G12     196.5          66.9               10.7 +/-    0.78      11.6 +/-    0.78  0.030 / 0.040
G19     99.7           11.1               11.8 +/-    1.78      32.2 +/-    1.78  0.040 / 0.060
G25     297.1          53.2               10.6 +/-    0.93      12.9 +/-    0.93  0.050 / 0.050
G29     307.0          27.2               10.6 +/-    1.17      19.7 +/-    1.17  0.090 / 0.380