PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-07:12:30
G08     296.6          21.8                5.7 +/-    1.30      12.1 +/-    1.30  0.050 / 0.100
G10     4.9            63.0                3.6 +/-    0.53       4.0 +/-    0.53  0.050 / 0.120
G14     228.7          40.9                6.5 +/-    1.31       9.3 +/-    1.31  0.040 / 0.100
G20     77.5           39.3                5.4 +/-    1.04       7.9 +/-    1.04  0.040 / 0.090
G21     146.1          41.9                6.8 +/-    1.00       9.6 +/-    1.00  0.090 / 0.120
G24     56.7           25.8                4.8 +/-    0.56       9.3 +/-    0.56  0.080 / 0.130
G27     255.1          32.1                6.7 +/-    1.04      11.3 +/-    1.04  0.030 / 0.030
G32     245.7          68.9                6.9 +/-    0.39       7.3 +/-    0.39  0.030 / 0.030