PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-06:58:00
G03     219.3          60.2                6.6 +/-    2.26       7.5 +/-    2.26  0.050 / 0.060
G07     256.0          14.6                5.8 +/-    3.79      14.7 +/-    3.79  0.060 / 0.070
G09     310.7          29.9                4.2 +/-    1.79       7.3 +/-    1.79  0.140 / 0.250
G16     92.9           63.2                6.1 +/-    0.71       6.8 +/-    0.71  0.130 / 0.210
G22     190.7          44.1                6.7 +/-    1.11       9.1 +/-    1.11  0.040 / 0.040
G23     328.0          58.0                4.4 +/-    0.75       5.1 +/-    0.75  0.040 / 0.040
G26     53.5           42.3                6.1 +/-    1.20       8.6 +/-    1.20  0.040 / 0.040
G31     59.2           9.3                 2.8 +/-    3.53       7.9 +/-    3.53  0.050 / 0.040