PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/26-00:58:00
G02     259.4          80.0               11.7 +/-    0.48      11.9 +/-    0.48  0.070 / 0.040
G05     169.1          20.6               17.4 +/-    1.43      37.6 +/-    1.43  0.080 / 0.050
G06     40.0           54.2               11.6 +/-    0.65      13.9 +/-    0.65  0.040 / 0.050
G12     321.3          55.9               11.6 +/-    0.88      13.6 +/-    0.88  0.040 / 0.050
G17     72.3           23.6               11.8 +/-    0.98      23.8 +/-    0.98  0.100 / 0.170
G19     60.5           37.0               12.3 +/-    1.13      18.8 +/-    1.13  0.100 / 0.190
G24     241.2          32.5               12.9 +/-    0.78      21.5 +/-    0.78  0.110 / 0.260
G25     317.3          14.9                8.4 +/-    2.20      20.9 +/-    2.20  0.140 / 0.310