PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/19-03:42:40
G05     46.6           22.6                2.8 +/-    1.23       5.7 +/-    1.23  0.060 / 0.100
G13     87.0           36.1                6.9 +/-    0.45      10.7 +/-    0.45  0.080 / 0.080
G15     135.4          46.2               10.1 +/-    0.55      13.4 +/-    0.55  0.050 / 0.110
G20     246.0          49.3               11.5 +/-    0.63      14.7 +/-    0.63  0.060 / 0.120
G21     305.1          41.3                8.5 +/-    1.03      12.1 +/-    1.03  0.050 / 0.140
G25     204.3          17.9                7.5 +/-    1.65      17.4 +/-    1.65  0.060 / 0.150
G26     294.7          20.9                7.7 +/-    1.43      16.6 +/-    1.43  0.130 / 0.360
G29     143.3          82.6                6.5 +/-    0.63       6.6 +/-    0.63  0.180 / 0.350