PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-08:28:00
G03     248.0          70.4                5.1 +/-    0.69       5.3 +/-    0.69  0.050 / 0.050
G09     300.4          14.2                3.7 +/-    1.56       9.4 +/-    1.56  0.050 / 0.040
G14     95.7           17.5                3.4 +/-    2.14       7.9 +/-    2.14  0.050 / 0.040
G16     133.8          54.9                5.7 +/-    0.55       6.8 +/-    0.55  0.050 / 0.040
G22     199.0          59.5                6.0 +/-    0.42       6.9 +/-    0.42  0.150 / 0.240
G23     319.0          49.3                3.8 +/-    0.58       4.8 +/-    0.58  0.120 / 0.250
G26     76.7           53.3                5.1 +/-    0.47       6.2 +/-    0.47  0.040 / 0.050
G31     50.7           21.5                4.1 +/-    2.60       8.7 +/-    2.60  0.040 / 0.050