PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-08:58:00
G01     220.6          12.4                5.4 +/-    1.88      14.2 +/-    1.88  0.040 / 0.050
G03     263.6          71.2                5.8 +/-    0.72       6.1 +/-    0.72  0.030 / 0.040
G09     297.4          10.7              -13.7 +/-   19.49     -37.6 +/-   19.49  0.040 / 0.030
G14     91.7           20.4                5.0 +/-    1.73      10.8 +/-    1.73  0.040 / 0.030
G16     140.6          50.4                8.1 +/-    1.00      10.2 +/-    1.00  0.110 / 0.300
G22     203.5          64.2                7.2 +/-    0.79       7.9 +/-    0.79  0.110 / 0.290
G23     314.6          45.1                4.8 +/-    1.10       6.5 +/-    1.10  0.120 / 0.240
G26     85.9           54.5                7.2 +/-    1.46       8.6 +/-    1.46  0.110 / 0.210
G31     48.4           25.6                4.2 +/-    2.83       8.1 +/-    2.83  0.150 / 0.250