PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/24-21:27:50
G02     79.5           17.7               11.4 +/-    1.03      26.6 +/-    1.03  0.050 / 0.150
G05     44.5           41.9               11.9 +/-    0.91      16.8 +/-    0.91  0.060 / 0.140
G13     106.3          31.5               14.6 +/-    1.33      24.8 +/-    1.33  0.130 / 0.440
G15     149.5          33.2               15.8 +/-    0.84      25.9 +/-    0.84  0.120 / 0.410
G18     228.4          22.8               16.1 +/-    1.75      33.1 +/-    1.75  0.080 / 0.140
G20     305.2          86.2               11.7 +/-    0.58      11.7 +/-    0.58  0.060 / 0.150
G21     292.7          33.4               12.2 +/-    1.85      20.0 +/-    1.85  0.040 / 0.050
G25     207.9          27.7               15.1 +/-    1.07      27.9 +/-    1.07  0.050 / 0.060
G26     311.7          15.3               11.1 +/-    2.24      27.3 +/-    2.24  0.030 / 0.030
G29     10.0           83.6               13.1 +/-    0.72      13.2 +/-    0.72  0.030 / 0.030