PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-03:27:50
G02     73.7           20.9                6.1 +/-    1.01      13.1 +/-    1.01  0.210 / 0.250
G05     45.6           43.7                6.9 +/-    0.98       9.5 +/-    0.98  0.140 / 0.340
G12     181.2          15.5                9.7 +/-    2.23      23.7 +/-    2.23  0.030 / 0.060
G13     113.8          26.3               10.5 +/-    1.13      20.0 +/-    1.13  0.030 / 0.050
G15     154.0          26.3               11.6 +/-    1.36      21.9 +/-    1.36  0.090 / 0.200
G20     226.8          34.3               13.7 +/-    1.35      22.1 +/-    1.35  0.090 / 0.150
G21     285.1          27.3                9.5 +/-    1.86      17.7 +/-    1.86  0.050 / 0.110
G25     219.0          38.2               12.7 +/-    1.31      19.1 +/-    1.31  0.060 / 0.100
G26     315.6          13.7                7.6 +/-    1.95      19.5 +/-    1.95  0.080 / 0.180
G29     339.6          71.1               10.2 +/-    0.79      10.7 +/-    0.79  0.050 / 0.160