PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-21:42:50
G10     280.4          46.3               12.8 +/-    0.74      17.0 +/-    0.74  0.060 / 0.040
G15     50.7           40.6               10.9 +/-    0.96      15.7 +/-    0.96  0.060 / 0.040
G20     322.2          64.2               11.7 +/-    0.84      12.9 +/-    0.84  0.060 / 0.060
G21     35.8           76.7               12.8 +/-    1.07      13.1 +/-    1.07  0.070 / 0.070
G24     112.4          20.3               14.0 +/-    1.40      30.5 +/-    1.40  0.150 / 0.320
G27     312.9          26.5               10.7 +/-    1.76      20.2 +/-    1.76  0.130 / 0.200
G29     168.0          20.5               16.9 +/-    2.01      36.7 +/-    2.01  0.080 / 0.060
G32     205.9          19.0               18.9 +/-    2.86      42.6 +/-    2.86  0.080 / 0.060