PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/28-16:57:50
G01     314.1          26.5                5.9 +/-    1.08      11.2 +/-    1.08  0.090 / 0.140
G10     94.8           47.1                8.0 +/-    0.80      10.5 +/-    0.80  0.080 / 0.160
G11     294.4          25.9                7.2 +/-    3.69      13.8 +/-    3.69  0.050 / 0.040
G14     328.7          70.3                6.6 +/-    0.61       7.0 +/-    0.61  0.040 / 0.040
G22     306.0          19.0                5.5 +/-    1.45      12.5 +/-    1.45  0.030 / 0.030
G25     91.9           13.3                8.7 +/-    2.62      22.6 +/-    2.62  0.050 / 0.040
G31     172.8          54.3               10.8 +/-    0.50      13.0 +/-    0.50  0.130 / 0.170
G32     25.2           59.2                7.4 +/-    0.60       8.5 +/-    0.60  0.090 / 0.260