PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/05-20:42:50
G10     264.1          35.7               18.9 +/-    1.05      29.6 +/-    1.05  0.170 / 0.540
G13     43.9           21.7               15.1 +/-    2.59      31.9 +/-    2.59  0.170 / 0.470
G15     62.0           50.4               18.8 +/-    0.58      23.6 +/-    0.58  0.100 / 0.410
G16     285.8          11.8               18.1 +/-    1.59      48.4 +/-    1.59  0.110 / 0.430
G18     296.1          63.8               18.0 +/-    0.93      19.8 +/-    0.93  0.040 / 0.040
G20     52.7           36.9               16.1 +/-    0.79      24.7 +/-    0.79  0.050 / 0.050
G21     2.4            71.3               18.5 +/-    0.64      19.5 +/-    0.64  0.100 / 0.150
G24     123.6          12.4               13.7 +/-   35.23      36.3 +/-   35.23  0.100 / 0.140
G27     318.9          18.2               15.6 +/-    0.74      35.9 +/-    0.74  0.080 / 0.250
G29     165.6          29.2               19.6 +/-    2.46      35.0 +/-    2.46  0.080 / 0.300