PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/10-21:43:10
G03     264.1          70.0               10.9 +/-    0.90      11.5 +/-    0.90  0.030 / 0.040
G09     300.9          17.9               10.6 +/-    2.36      24.5 +/-    2.36  0.040 / 0.040
G14     92.0           22.3               10.6 +/-    1.49      22.0 +/-    1.49  0.110 / 0.220
G16     133.7          53.2               13.6 +/-    0.48      16.6 +/-    0.48  0.100 / 0.230
G22     204.3          62.6               10.8 +/-    0.58      12.0 +/-    0.58  0.060 / 0.090
G23     313.7          43.5                9.9 +/-    0.93      13.7 +/-    0.93  0.050 / 0.070
G26     81.0           53.9                9.5 +/-    0.68      11.4 +/-    0.68  0.040 / 0.030
G31     49.1           25.0                8.1 +/-    2.01      15.7 +/-    2.01  0.040 / 0.030