PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-03:13:10
G05     47.0           21.2                6.1 +/-    2.93      13.0 +/-    2.93  0.090 / 0.090
G13     84.7           36.3               10.9 +/-    1.04      17.0 +/-    1.04  0.070 / 0.080
G15     133.8          47.5               12.4 +/-    0.65      16.2 +/-    0.65  0.240 / 0.240
G20     246.2          46.0               14.6 +/-    3.05      19.4 +/-    3.05  0.230 / 0.300
G21     306.5          42.3               11.5 +/-    1.23      16.2 +/-    1.23  0.060 / 0.090
G25     203.4          16.4                8.9 +/-    5.07      21.5 +/-    5.07  0.070 / 0.090
G26     292.9          21.0               11.0 +/-    1.48      23.6 +/-    1.48  0.180 / 0.350
G29     147.7          80.9                9.8 +/-    0.67      10.0 +/-    0.67  0.110 / 0.270