PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/10-16:57:50
G10     255.9          31.3                9.8 +/-    2.08      16.7 +/-    2.08  0.040 / 0.040
G13     48.5           25.9                9.2 +/-    1.72      17.7 +/-    1.72  0.040 / 0.030
G15     78.6           57.5               10.9 +/-    0.85      12.6 +/-    0.85  0.130 / 0.410
G16     290.3          14.8                4.4 +/-    2.19      10.9 +/-    2.19  0.130 / 0.410
G20     278.5          54.6               10.5 +/-    3.52      12.6 +/-    3.52  0.180 / 0.170
G21     345.3          65.4               10.4 +/-    0.76      11.3 +/-    0.76  0.100 / 0.170
G26     263.8          13.0                7.4 +/-    2.07      19.3 +/-    2.07  0.040 / 0.030
G29     165.5          42.8               12.8 +/-    0.92      17.8 +/-    0.92  0.040 / 0.030