PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/01-18:58:00
G01     313.6          29.0                7.5 +/-    1.11      13.5 +/-    1.11  0.050 / 0.040
G10     95.2           44.7                9.0 +/-    1.44      12.1 +/-    1.44  0.050 / 0.050
G11     296.3          24.1                8.3 +/-    2.09      16.7 +/-    2.09  0.130 / 0.240
G14     315.4          70.0                7.7 +/-    0.71       8.2 +/-    0.71  0.130 / 0.190
G20     114.8          18.5                9.2 +/-    1.44      21.1 +/-    1.44  0.050 / 0.070
G25     92.1           12.5               10.5 +/-    2.16      27.7 +/-    2.16  0.060 / 0.050
G31     172.7          53.3               10.1 +/-    0.85      12.2 +/-    0.85  0.040 / 0.050
G32     26.7           58.6                7.7 +/-    0.77       8.9 +/-    0.77  0.040 / 0.050