PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/25-16:43:10
G10     247.8          26.2               14.4 +/-    1.23      27.4 +/-    1.23  0.200 / 0.540
G13     56.0           30.3               11.8 +/-    1.59      20.4 +/-    1.59  0.170 / 0.440
G15     90.2           57.2               13.5 +/-    1.85      15.7 +/-    1.85  0.040 / 0.040
G16     298.2          16.0                7.9 +/-    3.56      19.3 +/-    3.56  0.040 / 0.050
G20     267.5          50.6               14.2 +/-    2.57      17.7 +/-    2.57  0.070 / 0.150
G21     330.2          57.5               11.3 +/-    0.65      13.1 +/-    0.65  0.080 / 0.150
G26     271.4          16.7               10.6 +/-    1.59      25.3 +/-    1.59  0.040 / 0.040
G29     162.7          55.0               14.9 +/-    0.83      17.7 +/-    0.83  0.030 / 0.040