PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-16:42:40
G10     261.9          35.4               10.6 +/-    0.76      16.6 +/-    0.76  0.040 / 0.040
G13     44.4           21.7                8.5 +/-    2.52      18.0 +/-    2.52  0.040 / 0.030
G15     67.6           54.2                9.1 +/-    0.80      10.9 +/-    0.80  0.140 / 0.470
G16     284.5          13.5                6.8 +/-    2.97      17.5 +/-    2.97  0.130 / 0.420
G20     288.6          58.0                9.1 +/-    1.61      10.5 +/-    1.61  0.300 / 0.220
G21     357.2          69.6                8.3 +/-    0.86       8.8 +/-    0.86  0.220 / 0.260
G24     120.7          11.8               10.9 +/-    3.11      29.1 +/-    3.11  0.210 / 0.330
G27     321.3          13.1                4.3 +/-    2.79      11.1 +/-    2.79  0.170 / 0.230
G29     166.6          35.9                9.4 +/-    0.97      14.7 +/-    0.97  0.030 / 0.030