PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/11-15:43:10
G10     251.5          29.3               11.4 +/-    1.80      20.2 +/-    1.80  0.170 / 0.380
G13     52.0           28.0                9.3 +/-    1.72      17.1 +/-    1.72  0.150 / 0.400
G15     80.4           55.9               11.3 +/-    1.07      13.4 +/-    1.07  0.040 / 0.050
G16     293.9          16.0                8.7 +/-    1.67      21.2 +/-    1.67  0.040 / 0.050
G20     273.9          53.7               13.7 +/-    2.67      16.5 +/-    2.67  0.040 / 0.050
G21     336.0          60.7               10.1 +/-    0.55      11.4 +/-    0.55  0.040 / 0.040
G26     267.4          15.1                7.5 +/-    3.17      18.7 +/-    3.17  0.100 / 0.220
G29     164.1          50.2               15.1 +/-    0.44      19.0 +/-    0.44  0.070 / 0.210