PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/17-22:42:40
G10     254.5          30.0               13.3 +/-    2.09      23.3 +/-    2.09  0.040 / 0.040
G13     49.6           27.1                8.9 +/-    2.18      16.5 +/-    2.18  0.040 / 0.040
G15     82.9           58.5               11.0 +/-    0.60      12.7 +/-    0.60  0.120 / 0.410
G16     289.5          15.6               10.2 +/-    1.87      25.0 +/-    1.87  0.170 / 0.490
G20     258.0          23.3               14.9 +/-    3.26      30.3 +/-    3.26  0.060 / 0.160
G21     337.9          62.6               10.6 +/-    0.60      11.8 +/-    0.60  0.130 / 0.140
G26     262.1          13.8               12.5 +/-    2.62      31.9 +/-    2.62  0.030 / 0.030
G29     166.3          46.2               10.6 +/-    1.05      14.1 +/-    1.05  0.030 / 0.030