PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/07-21:12:50
G03     185.7          10.5               10.2 +/-    1.71      28.2 +/-    1.71  0.080 / 0.110
G07     305.3          47.1               10.5 +/-    2.49      13.7 +/-    2.49  0.080 / 0.130
G08     129.3          37.9               12.3 +/-    0.99      18.5 +/-    0.99  0.110 / 0.080
G09     313.2          74.9               10.2 +/-    0.65      10.5 +/-    0.65  0.130 / 0.080
G16     41.9           31.4                8.0 +/-    1.37      13.6 +/-    1.37  0.060 / 0.060
G23     140.0          70.4               11.4 +/-    0.75      12.0 +/-    0.75  0.060 / 0.060
G27     88.5           37.5               11.0 +/-    1.61      16.6 +/-    1.61  0.030 / 0.020
G30     282.2          19.1               10.5 +/-    1.66      23.7 +/-    1.66  0.030 / 0.020