PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/26-14:42:40
G02     202.9          26.0                7.9 +/-    2.85      15.0 +/-    2.85  0.060 / 0.120
G06     160.9          64.9                8.7 +/-    1.47       9.5 +/-    1.47  0.070 / 0.120
G12     306.0          15.6                5.3 +/-    1.84      12.9 +/-    1.84  0.090 / 0.360
G17     32.7           51.8                7.1 +/-    0.68       8.8 +/-    0.68  0.100 / 0.320
G19     336.5          68.9                7.5 +/-    0.87       8.0 +/-    0.87  0.040 / 0.040
G24     302.0          36.6                5.9 +/-    1.61       9.1 +/-    1.61  0.040 / 0.040
G28     96.7           34.9                6.4 +/-    1.01      10.1 +/-    1.01  0.030 / 0.040