PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-21:58:10
G10     280.9          45.5               14.1 +/-    1.16      18.9 +/-    1.16  0.040 / 0.040
G15     52.2           44.5               10.6 +/-    0.46      14.4 +/-    0.46  0.040 / 0.040
G20     322.8          64.3               10.5 +/-    0.61      11.6 +/-    0.61  0.080 / 0.140
G21     43.5           77.0               13.0 +/-    0.46      13.4 +/-    0.46  0.080 / 0.160
G24     107.5          20.9               15.2 +/-    0.99      32.6 +/-    0.99  0.100 / 0.160
G27     312.3          26.7               10.6 +/-    0.63      20.0 +/-    0.63  0.080 / 0.160
G29     168.8          19.7               18.4 +/-    1.03      40.8 +/-    1.03  0.030 / 0.050
G32     206.2          21.2               17.9 +/-    1.44      38.2 +/-    1.44  0.030 / 0.050