PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-02:13:10
G10     285.6          48.3                9.7 +/-    2.79      12.6 +/-    2.79  0.100 / 0.100
G15     48.3           35.4                7.7 +/-    1.48      12.2 +/-    1.48  0.080 / 0.100
G20     329.7          64.7               10.0 +/-    0.63      11.0 +/-    0.63  0.080 / 0.100
G21     56.7           77.2                9.9 +/-    0.72      10.1 +/-    0.72  0.150 / 0.110
G24     107.5          22.4                7.6 +/-    1.42      15.7 +/-    1.42  0.040 / 0.030
G27     310.1          28.8                7.6 +/-    0.98      13.6 +/-    0.98  0.040 / 0.040
G29     167.4          15.0                8.4 +/-    1.62      20.9 +/-    1.62  0.080 / 0.080
G32     207.5          21.1               12.6 +/-    2.14      26.9 +/-    2.14  0.060 / 0.060