PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/03-21:57:50
G01     221.9          14.9                9.2 +/-    1.27      23.0 +/-    1.27  0.050 / 0.040
G03     284.4          68.2                5.4 +/-    0.51       5.8 +/-    0.51  0.040 / 0.050
G09     296.6          13.0                8.8 +/-    3.04      22.9 +/-    3.04  0.120 / 0.190
G14     86.1           26.6                7.9 +/-    1.14      14.9 +/-    1.14  0.130 / 0.200
G16     141.4          47.4               10.3 +/-    1.08      13.4 +/-    1.08  0.070 / 0.100
G22     215.3          68.7                8.7 +/-    1.29       9.3 +/-    1.29  0.050 / 0.110
G23     308.9          38.8                6.9 +/-    1.11      10.2 +/-    1.11  0.030 / 0.040
G26     93.1           54.4                8.2 +/-    0.86       9.9 +/-    0.86  0.030 / 0.050
G31     46.4           30.2                5.7 +/-    1.37      10.0 +/-    1.37  0.050 / 0.090