PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-16:57:40
G01     39.4           14.0                6.9 +/-    2.32      17.6 +/-    2.32  0.050 / 0.070
G06     174.0          41.1               10.1 +/-    1.32      14.4 +/-    1.32  0.040 / 0.060
G13     234.6          21.0                9.5 +/-    2.07      20.4 +/-    2.07  0.170 / 0.310
G15     268.4          11.4                8.3 +/-    2.19      22.4 +/-    2.19  0.260 / 0.420
G17     0.8            70.2                8.6 +/-    0.84       9.1 +/-    0.84  0.030 / 0.040
G19     286.0          71.0                8.3 +/-    1.16       8.7 +/-    1.16  0.020 / 0.040
G24     315.6          20.7                5.4 +/-    2.83      11.7 +/-    2.83  0.060 / 0.080
G28     68.7           50.0                9.5 +/-    1.11      12.0 +/-    1.11  0.060 / 0.080
G30     154.5          23.4               10.5 +/-    1.29      21.2 +/-    1.29  0.110 / 0.220