PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/09-21:27:50
G05     49.3           15.5                7.3 +/-    0.74      18.0 +/-    0.74  0.250 / 0.580
G10     237.4          15.6               15.8 +/-    1.79      38.8 +/-    1.79  0.240 / 0.390
G13     71.9           35.1               10.6 +/-    0.44      16.9 +/-    0.44  0.140 / 0.410
G15     121.0          53.8               12.3 +/-    0.79      14.8 +/-    0.79  0.130 / 0.380
G16     312.3          13.1                8.6 +/-    2.51      22.4 +/-    2.51  0.050 / 0.070
G20     250.4          38.7               14.3 +/-    0.90      21.3 +/-    0.90  0.040 / 0.080
G21     315.1          47.6               10.7 +/-    0.70      14.0 +/-    0.70  0.120 / 0.340
G25     198.9          10.1               13.3 +/-    7.84      36.9 +/-    7.84  0.110 / 0.340
G26     285.5          19.9               11.7 +/-    1.43      25.7 +/-    1.43  0.150 / 0.190
G29     154.6          69.8               12.0 +/-    0.81      12.7 +/-    0.81  0.080 / 0.190