PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/24-01:28:00
G02     326.9          81.0                7.7 +/-    0.48       7.8 +/-    0.48  0.030 / 0.040
G05     165.1          29.8               15.5 +/-    0.79      27.3 +/-    0.79  0.040 / 0.050
G06     40.6           44.6                6.6 +/-    0.80       9.0 +/-    0.80  0.060 / 0.100
G12     317.0          66.1                8.0 +/-    0.62       8.7 +/-    0.62  0.070 / 0.110
G17     80.5           17.9                9.2 +/-    1.12      21.3 +/-    1.12  0.070 / 0.150
G19     70.1           31.0               10.1 +/-    0.93      17.3 +/-    0.93  0.080 / 0.160
G24     232.3          26.0               13.8 +/-    1.94      26.3 +/-    1.94  0.030 / 0.040
G25     317.8          23.7                6.2 +/-    1.88      12.5 +/-    1.88  0.050 / 0.030