PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-05:12:30
G02     47.3           42.5                4.4 +/-    1.21       6.1 +/-    1.21  0.030 / 0.050
G05     94.1           69.0                7.4 +/-    0.76       7.8 +/-    0.76  0.030 / 0.050
G12     191.0          52.3                8.2 +/-    1.63      10.0 +/-    1.63  0.040 / 0.040
G25     262.6          59.3                3.8 +/-    1.69       4.3 +/-    1.69  0.030 / 0.040
G29     321.7          45.3                3.9 +/-    1.35       5.2 +/-    1.35  0.030 / 0.030