PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-19:43:00
G02     359.6          74.3                7.7 +/-    0.54       8.0 +/-    0.54  0.080 / 0.120
G05     160.9          39.9               11.6 +/-    1.11      16.9 +/-    1.11  0.100 / 0.110
G06     43.0           34.4                7.9 +/-    0.83      12.7 +/-    0.83  0.040 / 0.030
G12     299.8          75.2                8.6 +/-    0.79       8.9 +/-    0.79  0.040 / 0.030
G17     89.7           9.6                10.9 +/-    0.82      30.8 +/-    0.82  0.100 / 0.210
G19     80.9           22.1                9.3 +/-    1.32      19.5 +/-    1.32  0.120 / 0.420
G24     224.0          18.3                9.0 +/-    2.42      20.6 +/-    2.42  0.150 / 0.240
G25     315.6          33.8                5.4 +/-    1.05       8.7 +/-    1.05  0.210 / 0.350
G29     290.8          13.4                9.8 +/-    1.94      25.3 +/-    1.94  0.070 / 0.100