PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-01:27:40
G02     52.7           38.2                8.3 +/-    1.27      12.5 +/-    1.27  0.040 / 0.060
G05     73.7           66.4               10.5 +/-    0.39      11.4 +/-    0.39  0.040 / 0.070
G12     186.1          41.8               12.7 +/-    1.74      17.9 +/-    1.74  0.130 / 0.560
G21     264.1          11.3                7.8 +/-   15.08      21.1 +/-   15.08  0.160 / 0.650
G25     253.6          56.7               11.6 +/-    1.46      13.6 +/-    1.46  0.030 / 0.050
G29     322.0          45.4                9.2 +/-    1.32      12.4 +/-    1.32  0.040 / 0.040