PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-16:27:30
G02     65.2           28.2               11.1 +/-    1.75      20.2 +/-    1.75  0.350 / 0.600
G05     50.7           56.6               13.7 +/-    0.91      16.1 +/-    0.91  0.160 / 0.360
G12     181.7          24.0               13.9 +/-    1.04      27.9 +/-    1.04  0.070 / 0.110
G13     120.1          20.1               15.7 +/-    1.82      34.5 +/-    1.82  0.090 / 0.130
G15     159.3          19.0               15.9 +/-    2.68      35.8 +/-    2.68  0.080 / 0.210
G21     277.9          21.4               12.4 +/-    3.03      26.5 +/-    3.03  0.130 / 0.260
G25     227.6          46.3               13.4 +/-    2.85      17.8 +/-    2.85  0.080 / 0.170
G29     333.6          61.4               12.8 +/-    0.93      14.4 +/-    0.93  0.090 / 0.110