PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-20:43:00
G10     302.5          54.1               10.8 +/-    1.28      13.0 +/-    1.28  0.040 / 0.040
G14     210.8          11.1               -2.3 +/-   30.61      -6.2 +/-   30.61  0.040 / 0.040
G15     45.8           26.1                8.0 +/-    2.56      15.3 +/-    2.56  0.200 / 0.620
G20     0.7            64.9               10.6 +/-    0.59      11.6 +/-    0.59  0.250 / 0.480
G21     101.0          73.4               12.2 +/-    0.84      12.7 +/-    0.84  0.120 / 0.140
G24     97.1           27.5               10.6 +/-    1.38      19.6 +/-    1.38  0.150 / 0.150
G27     298.7          35.2               11.0 +/-    1.18      17.4 +/-    1.18  0.080 / 0.100
G32     210.8          34.5               15.8 +/-    1.85      25.3 +/-    1.85  0.130 / 0.090