PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/01-05:27:10
G02     34.6           53.9                2.4 +/-    1.17       2.9 +/-    1.17  0.020 / 0.030
G05     136.4          62.9                3.8 +/-    0.46       4.2 +/-    0.46  0.030 / 0.020
G12     203.5          69.0                3.1 +/-    0.28       3.3 +/-    0.28  0.040 / 0.040
G19     100.1          9.6                 5.3 +/-    2.23      15.0 +/-    2.23  0.050 / 0.050
G25     293.0          56.0                1.7 +/-    4.25       2.0 +/-    4.25  0.220 / 0.320
G29     310.2          32.7                2.4 +/-    1.41       4.0 +/-    1.41  0.240 / 0.330