PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-09:28:10
G03     226.6          66.5                4.9 +/-    0.76       5.3 +/-    0.76  0.120 / 0.450
G07     250.6          13.0                4.9 +/-    2.41      12.9 +/-    2.41  0.120 / 0.480
G09     304.5          19.3                4.4 +/-    0.92       9.9 +/-    0.92  0.040 / 0.060
G14     101.5          12.7                3.4 +/-    1.84       9.0 +/-    1.84  0.040 / 0.060
G16     122.1          60.2                7.5 +/-    0.52       8.5 +/-    0.52  0.040 / 0.050
G22     193.1          51.7                7.8 +/-    0.86       9.6 +/-    0.86  0.040 / 0.050
G23     324.6          54.4                5.2 +/-    0.91       6.3 +/-    0.91  0.120 / 0.500
G26     65.7           50.4                4.9 +/-    0.72       6.2 +/-    0.72  0.130 / 0.520
G31     54.2           16.3                2.1 +/-    1.20       5.2 +/-    1.20  0.040 / 0.070