PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-23:28:10
G02     219.9          65.3               14.0 +/-    1.07      15.3 +/-    1.07  0.040 / 0.080
G06     49.3           70.1               12.1 +/-    0.52      12.8 +/-    0.52  0.040 / 0.060
G12     319.9          40.2               10.4 +/-    0.81      15.1 +/-    0.81  0.040 / 0.060
G17     58.9           32.7                9.6 +/-    0.51      16.0 +/-    0.51  0.040 / 0.060
G19     42.9           47.5               10.5 +/-    0.45      13.7 +/-    0.45  0.140 / 0.430
G24     259.7          40.4               13.4 +/-    0.83      19.4 +/-    0.83  0.140 / 0.410
G28     125.5          10.2               13.3 +/-    4.88      36.9 +/-    4.88  0.070 / 0.080