PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-22:57:50
G02     311.7          81.4                9.7 +/-    1.00       9.8 +/-    1.00  0.040 / 0.040
G05     166.0          28.4               15.5 +/-    0.81      28.0 +/-    0.81  0.030 / 0.050
G06     40.6           44.9                8.4 +/-    0.54      11.4 +/-    0.54  0.090 / 0.170
G12     317.9          66.2                7.5 +/-    1.14       8.1 +/-    1.14  0.090 / 0.160
G17     80.3           17.0               10.4 +/-    1.12      24.7 +/-    1.12  0.070 / 0.120
G19     68.4           32.4               10.4 +/-    0.62      17.3 +/-    0.62  0.060 / 0.110
G24     232.8          26.7               17.9 +/-    1.73      33.6 +/-    1.73  0.080 / 0.170
G25     317.8          22.9                8.5 +/-    2.04      17.5 +/-    2.04  0.140 / 0.250