PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/27-14:28:00
G01     319.5          16.7                3.0 +/-    2.12       7.1 +/-    2.12  0.160 / 0.390
G08     261.6          13.8                5.6 +/-    2.27      14.4 +/-    2.27  0.150 / 0.420
G10     77.2           54.3                7.1 +/-    0.66       8.5 +/-    0.66  0.050 / 0.060
G11     306.8          20.2                5.9 +/-    1.78      12.9 +/-    1.78  0.050 / 0.070
G14     288.1          69.0                6.2 +/-    0.73       6.6 +/-    0.73  0.040 / 0.060
G22     300.4          11.2                1.0 +/-    5.78       2.6 +/-    5.78  0.040 / 0.060
G31     175.6          41.3               11.7 +/-    0.65      16.6 +/-    0.65  0.170 / 0.220
G32     6.8            67.9                6.7 +/-    0.97       7.2 +/-    0.97  0.120 / 0.210