PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/09-05:27:10
G02     46.8           42.9                2.7 +/-    1.16       3.7 +/-    1.16  0.040 / 0.040
G05     96.3           69.1                4.3 +/-    0.66       4.6 +/-    0.66  0.030 / 0.040
G06     60.8           9.5                 2.5 +/-    2.24       7.0 +/-    2.24  0.040 / 0.040
G12     191.2          53.0                5.8 +/-    0.97       7.1 +/-    0.97  0.030 / 0.030
G25     263.6          59.4                4.2 +/-    0.91       4.7 +/-    0.91  0.030 / 0.020
G29     321.1          44.6                2.6 +/-    1.28       3.6 +/-    1.28  0.030 / 0.020