PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-07:58:10
G01     223.7          14.7                2.8 +/-   16.52       7.0 +/-   16.52  0.120 / 0.220
G03     283.0          67.2                5.7 +/-    3.13       6.2 +/-    3.13  0.210 / 0.230
G09     296.9          12.0                0.4 +/-   19.75       1.0 +/-   19.75  0.060 / 0.080
G14     90.4           20.6                2.5 +/-    3.18       5.4 +/-    3.18  0.040 / 0.080
G16     145.7          48.0                8.1 +/-    2.05      10.4 +/-    2.05  0.040 / 0.040
G22     207.4          67.9               17.2 +/-   27.34      18.4 +/-   27.34  0.040 / 0.030
G23     308.9          38.3                2.7 +/-    1.42       4.1 +/-    1.42  0.250 / 0.430
G26     94.1           55.2              -14.9 +/-   54.68     -17.7 +/-   54.68  0.210 / 0.490
G31     46.1           30.0                5.5 +/-   10.88       9.6 +/-   10.88  0.040 / 0.060