PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/31-03:28:00
G05     51.7           10.3                6.5 +/-    2.33      18.1 +/-    2.33  0.100 / 0.310
G10     240.8          17.4               18.1 +/-    2.07      42.5 +/-    2.07  0.110 / 0.270
G13     67.2           35.3               11.9 +/-    1.20      18.8 +/-    1.20  0.060 / 0.040
G15     113.1          56.0               14.0 +/-    0.63      16.5 +/-    0.63  0.040 / 0.050
G16     307.1          14.8                9.3 +/-    2.38      23.2 +/-    2.38  0.170 / 0.320
G20     261.6          54.0               14.1 +/-    1.84      17.0 +/-    1.84  0.170 / 0.300
G21     319.2          51.1               12.1 +/-    0.41      15.1 +/-    0.41  0.050 / 0.080
G26     278.8          19.7               13.5 +/-    1.73      29.9 +/-    1.73  0.060 / 0.100
G29     160.7          65.2               13.1 +/-    0.45      14.3 +/-    0.45  0.040 / 0.040