PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-09:27:30
G03     240.7          67.0               11.5 +/-    3.14      12.4 +/-    3.14  0.090 / 0.210
G07     249.6          11.1               -5.5 +/-    9.69     -15.1 +/-    9.69  0.090 / 0.180
G09     305.2          21.5                4.1 +/-    2.94       8.7 +/-    2.94  0.060 / 0.060
G14     102.0          11.6                1.2 +/-    4.48       3.4 +/-    4.48  0.050 / 0.050
G16     125.0          60.6               11.5 +/-    3.20      12.9 +/-    3.20  0.060 / 0.050
G22     191.9          53.1                6.2 +/-    0.70       7.5 +/-    0.70  0.050 / 0.040
G23     319.7          49.3                4.8 +/-    1.13       6.1 +/-    1.13  0.080 / 0.360
G26     67.8           51.8              -91.4 +/-   65.44    -112.9 +/-   65.44  0.080 / 0.270
G31     53.0           18.3               12.8 +/-   11.48      29.4 +/-   11.48  0.030 / 0.040