PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-23:28:00
G02     223.9          68.5               10.0 +/-    0.79      10.6 +/-    0.79  0.050 / 0.050
G06     45.5           66.8               10.4 +/-    0.59      11.3 +/-    0.59  0.040 / 0.050
G12     320.7          43.4                9.5 +/-    0.42      13.1 +/-    0.42  0.060 / 0.100
G17     61.7           30.6                9.0 +/-    0.61      15.6 +/-    0.61  0.080 / 0.120
G19     46.5           45.4               10.4 +/-    0.52      13.9 +/-    0.52  0.030 / 0.030
G24     255.5          39.2               12.9 +/-    1.16      19.1 +/-    1.16  0.030 / 0.030