PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/21-19:58:10
G02     244.5          76.1                9.1 +/-    0.40       9.4 +/-    0.40  0.400 / 0.400
G05     170.9          17.1               14.3 +/-    2.81      33.8 +/-    2.81  0.220 / 0.350
G06     40.1           58.1               10.1 +/-    0.69      11.7 +/-    0.69  0.030 / 0.030
G12     320.9          50.5               10.0 +/-    1.11      12.5 +/-    1.11  0.030 / 0.030
G17     70.4           23.1                7.7 +/-    1.56      15.7 +/-    1.56  0.100 / 0.110
G19     58.2           37.1                8.8 +/-    0.74      13.4 +/-    0.74  0.080 / 0.100
G24     244.4          34.2               14.0 +/-    2.47      22.5 +/-    2.47  0.040 / 0.060
G25     316.4          12.4               -2.2 +/-   30.47      -5.7 +/-   30.47  0.030 / 0.050