PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-08:27:50
G01     228.8          20.7                6.6 +/-    1.35      14.4 +/-    1.35  0.080 / 0.180
G03     296.9          66.0                4.4 +/-    0.83       4.8 +/-    0.83  0.090 / 0.180
G14     81.5           27.5                3.2 +/-    1.65       5.8 +/-    1.65  0.030 / 0.040
G16     150.9          39.2                6.9 +/-    1.02      10.2 +/-    1.02  0.030 / 0.040
G22     229.4          73.7                5.3 +/-    0.88       5.5 +/-    0.88  0.030 / 0.040
G23     305.5          36.9                4.1 +/-    1.72       6.3 +/-    1.72  0.030 / 0.040
G26     107.6          52.8                6.2 +/-    0.50       7.6 +/-    0.50  0.090 / 0.180
G31     44.1           35.4                3.1 +/-    0.81       4.9 +/-    0.81  0.080 / 0.170
G32     94.4           10.8                2.9 +/-    2.68       7.9 +/-    2.68  0.060 / 0.100