PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-13:43:00
G01     289.6          41.0               -2.1 +/-    2.66      -3.0 +/-    2.66  0.060 / 0.060
G03     312.8          20.8                1.4 +/-    1.28       3.0 +/-    1.28  0.050 / 0.060
G10     120.2          27.0                6.4 +/-    1.53      11.9 +/-    1.53  0.070 / 0.110
G11     262.9          25.3                5.2 +/-    4.62      10.0 +/-    4.62  0.070 / 0.080
G14     26.6           57.8                4.9 +/-    1.53       5.7 +/-    1.53  0.120 / 0.320
G18     247.0          47.4               -2.2 +/-   12.71      -2.9 +/-   12.71  0.110 / 0.340
G22     314.7          42.6                4.2 +/-    0.58       5.9 +/-    0.58  0.060 / 0.050
G25     64.4           17.8                5.2 +/-    2.00      12.1 +/-    2.00  0.060 / 0.050
G31     137.4          78.8                5.6 +/-    0.53       5.6 +/-    0.53  0.060 / 0.070
G32     48.1           45.2                3.8 +/-    0.99       5.2 +/-    0.99  0.050 / 0.060