PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/23-01:28:00
G01     257.0          37.7               -4.3 +/-   39.09      -6.5 +/-   39.09  0.150 / 0.400
G03     316.4          37.3               -6.9 +/-   37.42     -10.6 +/-   37.42  0.030 / 0.350
G11     240.4          15.6                5.1 +/-    2.66      12.5 +/-    2.66  0.030 / 0.150
G14     56.0           42.9               -0.3 +/-   26.64      -0.4 +/-   26.64  0.130 / 0.290
G16     168.8          11.2               -6.3 +/-   14.49     -17.0 +/-   14.49  0.140 / 0.330
G23     282.2          15.0               -1.4 +/-   10.56      -3.4 +/-   10.56  0.090 / 0.380
G25     42.3           11.7                3.3 +/-    2.87       8.9 +/-    2.87  0.060 / 0.200
G26     145.7          31.8                6.1 +/-    4.83      10.4 +/-    4.83  0.050 / 0.080
G31     42.2           68.6              -11.1 +/-   38.43     -11.8 +/-   38.43  0.050 / 0.090
G32     71.7           28.4                3.0 +/-    2.38       5.5 +/-    2.38  0.050 / 0.270