PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/24-20:27:30
G10     297.7          52.7               11.8 +/-    1.56      14.5 +/-    1.56  0.030 / 0.030
G15     46.2           28.8               10.4 +/-    1.26      18.7 +/-    1.26  0.040 / 0.040
G20     353.5          65.2               12.1 +/-    0.78      13.2 +/-    0.78  0.090 / 0.170
G21     90.7           75.2               13.4 +/-    0.63      13.8 +/-    0.63  0.070 / 0.170
G24     100.4          26.3               11.7 +/-    1.15      22.3 +/-    1.15  0.050 / 0.090
G27     302.0          33.9               10.8 +/-    1.19      17.5 +/-    1.19  0.050 / 0.090
G32     209.5          31.5               12.7 +/-    1.26      21.5 +/-    1.26  0.080 / 0.090