PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-15:42:50
G02     204.5          33.3               11.6 +/-    1.53      19.0 +/-    1.53  0.080 / 0.100
G06     150.8          71.6               10.0 +/-    0.61      10.4 +/-    0.61  0.100 / 0.130
G12     309.6          20.4                6.8 +/-    2.50      14.9 +/-    2.50  0.100 / 0.280
G17     38.3           47.2                8.3 +/-    1.56      10.8 +/-    1.56  0.180 / 0.310
G19     355.1          66.0                7.8 +/-    0.48       8.4 +/-    0.48  0.030 / 0.030
G24     295.0          39.8               10.0 +/-    6.17      14.6 +/-    6.17  0.030 / 0.020
G28     103.5          30.6                8.6 +/-    0.86      14.8 +/-    0.86  0.030 / 0.040