PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/18-22:57:30
G10     296.6          52.3               10.1 +/-    1.03      12.4 +/-    1.03  0.060 / 0.100
G15     46.4           29.8                6.9 +/-    0.53      12.1 +/-    0.53  0.060 / 0.090
G20     349.3          65.3                7.7 +/-    0.84       8.3 +/-    0.84  0.040 / 0.040
G21     88.0           75.6               10.2 +/-    0.50      10.5 +/-    0.50  0.040 / 0.040
G24     100.6          26.0               10.6 +/-    0.49      20.3 +/-    0.49  0.040 / 0.060
G27     302.8          33.4               11.1 +/-    1.46      18.2 +/-    1.46  0.040 / 0.070
G32     209.5          30.0               13.8 +/-    2.53      24.1 +/-    2.53  0.080 / 0.160