PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-00:27:50
G10     264.1          35.6               11.9 +/-    1.30      18.6 +/-    1.30  0.240 / 0.380
G13     43.9           21.7                8.9 +/-    1.56      18.8 +/-    1.56  0.160 / 0.350
G15     63.9           52.2               10.4 +/-    0.99      12.8 +/-    0.99  0.190 / 0.280
G16     283.5          12.2               11.8 +/-    1.78      31.5 +/-    1.78  0.230 / 0.280
G18     293.4          62.7                9.1 +/-    0.78      10.1 +/-    0.78  0.100 / 0.110
G20     53.4           35.6               10.5 +/-    1.54      16.4 +/-    1.54  0.090 / 0.080
G21     357.1          70.4                9.9 +/-    0.76      10.5 +/-    0.76  0.050 / 0.040
G24     123.6          12.3               15.9 +/-    2.05      42.3 +/-    2.05  0.050 / 0.040
G27     318.9          18.3               10.2 +/-    1.81      23.5 +/-    1.81  0.130 / 0.140
G29     166.8          31.5               13.0 +/-    1.72      22.1 +/-    1.72  0.100 / 0.130