PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-21:27:20
G10     296.7          52.4                8.0 +/-    1.94       9.8 +/-    1.94  0.040 / 0.040
G15     46.5           30.5                7.8 +/-    1.24      13.6 +/-    1.24  0.040 / 0.040
G20     350.9          65.3                8.9 +/-    0.45       9.7 +/-    0.45  0.060 / 0.100
G21     88.1           75.6               10.0 +/-    0.70      10.3 +/-    0.70  0.090 / 0.110
G24     100.9          26.0               11.4 +/-    1.38      21.7 +/-    1.38  0.090 / 0.120
G27     302.7          33.5                7.6 +/-    1.78      12.4 +/-    1.78  0.070 / 0.110
G32     209.4          30.6               13.2 +/-    1.36      22.8 +/-    1.36  0.060 / 0.100