PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-07:27:30
G03     217.9          59.6                5.4 +/-    1.75       6.2 +/-    1.75  0.060 / 0.070
G07     256.4          14.9                4.3 +/-    3.56      10.8 +/-    3.56  0.060 / 0.080
G09     311.0          30.2                4.8 +/-    1.75       8.4 +/-    1.75  0.100 / 0.240
G16     91.5           63.2                6.5 +/-    0.85       7.2 +/-    0.85  0.100 / 0.210
G22     190.0          43.2                5.6 +/-    0.45       7.8 +/-    0.45  0.160 / 0.250
G23     328.9          58.8                4.9 +/-    0.56       5.6 +/-    0.56  0.180 / 0.270
G26     52.9           41.8                4.7 +/-    1.48       6.6 +/-    1.48  0.030 / 0.040
G27     135.0          10.0              -12.8 +/-   16.31     -35.7 +/-   16.31  0.030 / 0.030
G31     59.6           8.9                 3.5 +/-    2.13      10.1 +/-    2.13  0.030 / 0.030