PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-16:28:00
G02     201.6          20.1               11.6 +/-    3.30      25.4 +/-    3.30  0.080 / 0.160
G06     169.7          56.5               11.5 +/-    1.18      13.5 +/-    1.18  0.080 / 0.130
G13     227.3          11.8                9.0 +/-    2.78      24.0 +/-    2.78  0.100 / 0.440
G17     27.9           55.9                8.9 +/-    0.83      10.5 +/-    0.83  0.090 / 0.450
G19     337.8          70.5                9.7 +/-    0.48      10.3 +/-    0.48  0.130 / 0.330
G24     309.8          29.8                9.4 +/-    1.75      16.6 +/-    1.75  0.120 / 0.290
G28     90.9           38.2                8.9 +/-    0.59      13.3 +/-    0.59  0.040 / 0.030
G30     157.9          14.4                9.2 +/-    2.41      23.3 +/-    2.41  0.030 / 0.040