PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-06:57:40
G03     258.7          69.3                4.4 +/-    1.15       4.6 +/-    1.15  0.030 / 0.040
G09     301.4          17.1                5.6 +/-    1.06      13.2 +/-    1.06  0.030 / 0.040
G14     95.3           18.6                2.2 +/-    1.45       5.0 +/-    1.45  0.040 / 0.030
G16     129.5          55.8                6.6 +/-    0.52       7.8 +/-    0.52  0.040 / 0.040
G22     200.9          61.0                6.2 +/-    0.86       6.9 +/-    0.86  0.040 / 0.060
G23     315.3          45.0                4.8 +/-    0.91       6.4 +/-    0.91  0.040 / 0.070
G26     74.1           52.0                5.7 +/-    0.72       7.1 +/-    0.72  0.120 / 0.200
G31     50.5           21.3                2.4 +/-    2.33       5.1 +/-    2.33  0.130 / 0.220