PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/13-02:12:30
G02     328.5          81.0                9.0 +/-    0.41       9.1 +/-    0.41  0.040 / 0.030
G05     165.1          29.8               13.1 +/-    1.96      23.1 +/-    1.96  0.030 / 0.030
G06     40.5           45.0                8.1 +/-    0.84      10.9 +/-    0.84  0.090 / 0.100
G12     317.1          65.8                9.8 +/-    0.79      10.7 +/-    0.79  0.080 / 0.090
G19     70.3           30.8                8.7 +/-    3.10      14.9 +/-    3.10  0.200 / 0.130
G24     232.4          26.1               14.6 +/-    1.72      27.9 +/-    1.72  0.130 / 0.180
G25     317.8          23.6                8.1 +/-    1.90      16.4 +/-    1.90  0.050 / 0.050