PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/28-16:42:40
G01     317.5          21.2                5.2 +/-    1.63      11.2 +/-    1.63  0.050 / 0.050
G08     255.5          11.1                7.5 +/-    3.90      20.6 +/-    3.90  0.050 / 0.050
G10     85.6           51.3                7.4 +/-    0.63       9.2 +/-    0.63  0.040 / 0.050
G11     301.1          23.5                5.7 +/-    2.69      11.5 +/-    2.69  0.050 / 0.060
G14     307.4          70.7                6.9 +/-    0.63       7.3 +/-    0.63  0.090 / 0.240
G22     302.8          14.0                5.6 +/-    1.61      14.2 +/-    1.61  0.100 / 0.200
G25     98.1           10.3              -13.2 +/-   29.63     -36.6 +/-   29.63  0.050 / 0.050
G31     175.1          46.7               10.6 +/-    1.16      14.0 +/-    1.16  0.050 / 0.050
G32     15.4           64.3                6.3 +/-    0.59       6.9 +/-    0.59  0.110 / 0.210