PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/24-23:13:10
G02     201.8          31.8               15.6 +/-    2.03      26.2 +/-    2.03  0.140 / 0.400
G06     163.8          65.3               14.9 +/-    0.91      16.2 +/-    0.91  0.150 / 0.350
G12     305.5          12.3                9.9 +/-    1.76      26.1 +/-    1.76  0.070 / 0.130
G17     27.4           55.6               11.5 +/-    0.76      13.6 +/-    0.76  0.080 / 0.140
G19     349.8          67.6               10.3 +/-    0.52      11.0 +/-    0.52  0.060 / 0.120
G24     302.0          36.0               11.6 +/-    0.87      18.1 +/-    0.87  0.060 / 0.130
G28     99.0           33.3               12.2 +/-    0.61      20.0 +/-    0.61  0.070 / 0.110