PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/23-04:28:00
G02     23.7           63.6                3.0 +/-    0.68       3.4 +/-    0.68  0.020 / 0.020
G05     151.7          51.8                7.1 +/-    0.43       8.7 +/-    0.43  0.030 / 0.030
G06     47.6           26.1                2.3 +/-    1.96       4.3 +/-    1.96  0.030 / 0.040
G12     239.0          78.6                4.3 +/-    0.22       4.4 +/-    0.22  0.030 / 0.040
G19     90.3           17.3                4.4 +/-    1.51      10.4 +/-    1.51  0.080 / 0.160
G24     216.6          11.0                4.7 +/-   11.61      12.7 +/-   11.61  0.140 / 0.160
G25     310.5          43.5                4.2 +/-    0.80       5.7 +/-    0.80  0.040 / 0.040
G29     299.0          19.8                2.5 +/-    0.85       5.5 +/-    0.85  0.030 / 0.040