PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/05-21:57:50
G01     219.4          12.3                8.7 +/-    5.11      22.9 +/-    5.11  0.040 / 0.040
G03     273.6          69.6                8.8 +/-    1.17       9.3 +/-    1.17  0.040 / 0.030
G09     299.0          15.6                7.9 +/-    3.16      19.5 +/-    3.16  0.130 / 0.210
G14     89.4           24.3               10.6 +/-    1.45      20.9 +/-    1.45  0.150 / 0.180
G16     137.4          50.8               10.4 +/-    0.77      13.0 +/-    0.77  0.030 / 0.030
G22     208.5          65.4                9.2 +/-    0.70      10.0 +/-    0.70  0.030 / 0.040
G23     311.6          41.4                7.7 +/-    1.26      11.0 +/-    1.26  0.050 / 0.060
G26     86.2           54.3                8.1 +/-    0.60       9.8 +/-    0.60  0.040 / 0.050
G31     47.9           27.2                5.5 +/-    2.23      10.2 +/-    2.23  0.080 / 0.080