PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/02-15:13:10
G10     278.3          45.5                8.1 +/-    1.02      10.9 +/-    1.02  0.110 / 0.140
G15     50.2           38.3                5.9 +/-    0.80       8.8 +/-    0.80  0.110 / 0.130
G20     323.7          64.8                5.6 +/-    1.14       6.1 +/-    1.14  0.070 / 0.080
G21     34.9           76.0                7.0 +/-    0.47       7.2 +/-    0.47  0.050 / 0.040
G24     114.5          19.3               10.5 +/-    0.93      23.5 +/-    0.93  0.070 / 0.150
G27     313.9          25.7                5.2 +/-    2.04      10.0 +/-    2.04  0.060 / 0.140
G29     168.2          23.1                8.8 +/-    2.24      18.0 +/-    2.24  0.070 / 0.070
G32     205.0          18.7                7.4 +/-    2.81      16.8 +/-    2.81  0.060 / 0.060