PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/15-08:27:50
G01     227.9          18.6                5.7 +/-    2.02      12.9 +/-    2.02  0.040 / 0.030
G03     292.9          65.9                4.4 +/-    0.71       4.8 +/-    0.71  0.030 / 0.030
G14     83.6           27.6                4.9 +/-    2.22       9.1 +/-    2.22  0.350 / 0.390
G16     145.3          44.2                5.9 +/-    0.82       8.0 +/-    0.82  0.120 / 0.150
G22     218.9          71.9                5.6 +/-    0.44       5.8 +/-    0.44  0.070 / 0.180
G23     306.5          37.0                4.8 +/-    1.43       7.4 +/-    1.43  0.090 / 0.160
G26     97.4           53.2                5.8 +/-    0.52       7.0 +/-    0.52  0.040 / 0.070
G31     45.1           31.8                4.1 +/-    1.17       6.9 +/-    1.17  0.040 / 0.070