PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-21:42:30
G02     38.6           50.2                8.5 +/-    1.52      10.7 +/-    1.52  0.060 / 0.060
G05     122.3          67.1               11.4 +/-    0.49      12.2 +/-    0.49  0.040 / 0.050
G06     57.2           11.0                8.3 +/-    1.78      22.7 +/-    1.78  0.050 / 0.060
G12     195.1          62.0               11.1 +/-    0.99      12.4 +/-    0.99  0.050 / 0.060
G25     286.1          56.6               11.2 +/-    2.79      13.1 +/-    2.79  0.030 / 0.040
G29     312.7          34.4                8.6 +/-    1.41      13.8 +/-    1.41  0.040 / 0.040