PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/07-22:27:40
G01     41.9           17.7               10.7 +/-    3.02      25.0 +/-    3.02  0.130 / 0.240
G06     177.7          33.7               14.4 +/-    0.99      23.4 +/-    0.99  0.190 / 0.170
G13     238.7          23.9               14.1 +/-    2.42      28.2 +/-    2.42  0.150 / 0.290
G15     272.1          13.0               10.1 +/-    1.74      26.2 +/-    1.74  0.120 / 0.200
G17     0.2            71.6               12.6 +/-    0.40      13.2 +/-    0.40  0.040 / 0.050
G19     270.2          68.1               13.6 +/-    1.02      14.5 +/-    1.02  0.030 / 0.050
G24     316.6          18.6                9.0 +/-    3.33      20.5 +/-    3.33  0.030 / 0.030
G28     64.1           50.9               11.1 +/-    0.33      13.9 +/-    0.33  0.040 / 0.030
G30     153.6          28.7               15.6 +/-    0.69      28.0 +/-    0.69  0.060 / 0.100