PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/14-20:57:50
G07     313.0          50.7               10.9 +/-    0.97      13.6 +/-    0.97  0.260 / 0.180
G08     122.7          42.4               12.5 +/-    0.60      17.5 +/-    0.60  0.150 / 0.200
G09     296.6          80.4               11.4 +/-    0.50      11.6 +/-    0.50  0.050 / 0.060
G16     42.2           26.1                7.5 +/-    3.72      14.3 +/-    3.72  0.060 / 0.060
G23     146.4          63.6               12.2 +/-    0.44      13.4 +/-    0.44  0.060 / 0.050
G27     80.0           38.2               11.5 +/-    0.68      17.2 +/-    0.68  0.050 / 0.050
G30     287.1          23.0               10.7 +/-    1.70      22.0 +/-    1.70  0.030 / 0.030