PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-09:27:40
G03     204.1          45.0                7.4 +/-    2.25      10.0 +/-    2.25  0.050 / 0.060
G07     270.3          26.8                4.2 +/-    1.06       7.9 +/-    1.06  0.040 / 0.050
G08     153.9          10.8               -6.8 +/-   28.01     -18.6 +/-   28.01  0.030 / 0.030
G09     317.9          43.4                4.5 +/-    0.55       6.2 +/-    0.55  0.030 / 0.030
G16     62.9           60.6                7.3 +/-    0.58       8.2 +/-    0.58  0.100 / 0.140
G22     183.2          26.9                3.6 +/-    1.34       6.8 +/-    1.34  0.110 / 0.130
G23     344.5          71.6                4.0 +/-    0.60       4.2 +/-    0.60  0.090 / 0.160
G26     45.6           33.0              -35.3 +/-   71.56     -58.2 +/-   71.56  0.170 / 0.130
G27     121.2          20.9                5.4 +/-    1.64      11.6 +/-    1.64  0.040 / 0.040