PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-02:28:00
G10     297.2          52.4               10.2 +/-    1.51      12.5 +/-    1.51  0.060 / 0.080
G15     46.1           28.2                8.6 +/-    1.42      15.6 +/-    1.42  0.060 / 0.090
G20     349.3          65.3               11.1 +/-    0.76      12.1 +/-    0.76  0.060 / 0.060
G21     91.5           74.9               11.7 +/-    0.79      12.1 +/-    0.79  0.070 / 0.050
G24     99.2           26.1               10.6 +/-    1.68      20.1 +/-    1.68  0.040 / 0.030
G27     302.6          33.3                7.8 +/-    2.74      12.7 +/-    2.74  0.040 / 0.040
G32     210.2          29.0               14.1 +/-    2.41      25.3 +/-    2.41  0.080 / 0.130