PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-08:42:40
G03     218.6          59.2               -0.1 +/-   13.41      -0.1 +/-   13.41  0.120 / 0.370
G07     257.8          17.7                5.4 +/-    2.33      12.6 +/-    2.33  0.120 / 0.270
G09     311.4          30.8                4.4 +/-    3.55       7.6 +/-    3.55  0.030 / 0.060
G16     99.4           65.4                5.6 +/-    0.41       6.1 +/-    0.41  0.030 / 0.050
G22     187.8          41.9                5.5 +/-    1.68       7.8 +/-    1.68  0.040 / 0.080
G23     328.4          58.3                3.1 +/-    0.63       3.5 +/-    0.63  0.050 / 0.060
G26     54.9           45.2              -24.0 +/-   63.30     -32.2 +/-   63.30  0.040 / 0.050
G27     132.8          11.1               -1.2 +/-   26.44      -3.4 +/-   26.44  0.030 / 0.060
G31     58.9           11.0                4.7 +/-   10.39      12.7 +/-   10.39  0.180 / 0.250