PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/25-01:12:40
G10     279.3          44.7               11.0 +/-    1.42      15.0 +/-    1.42  0.090 / 0.160
G13     38.2           9.8                 6.8 +/-    1.18      19.1 +/-    1.18  0.130 / 0.120
G15     51.7           42.5                7.3 +/-    0.52      10.3 +/-    0.52  0.040 / 0.030
G20     290.0          50.4                9.0 +/-    0.95      11.2 +/-    0.95  0.040 / 0.040
G21     34.2           76.9                9.3 +/-    0.67       9.5 +/-    0.67  0.110 / 0.200
G24     109.7          20.3               11.5 +/-    3.38      25.2 +/-    3.38  0.090 / 0.170
G27     312.6          26.6                7.9 +/-    1.38      14.9 +/-    1.38  0.110 / 0.420
G29     169.0          21.3               11.5 +/-    2.06      24.4 +/-    2.06  0.120 / 0.320
G32     205.8          20.6               13.5 +/-    2.88      29.3 +/-    2.88  0.050 / 0.040