PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/22-03:12:50
G08     317.0          14.5                6.6 +/-    1.72      16.6 +/-    1.72  0.040 / 0.040
G10     310.1          55.2                7.2 +/-    0.65       8.6 +/-    0.65  0.040 / 0.050
G14     212.9          21.9               11.0 +/-    1.42      23.0 +/-    1.42  0.030 / 0.050
G15     45.7           23.2                3.6 +/-    1.48       7.3 +/-    1.48  0.040 / 0.060
G18     13.6           64.4                7.1 +/-    1.00       7.8 +/-    1.00  0.150 / 0.320
G20     78.4           10.9                5.3 +/-    4.60      14.6 +/-    4.60  0.100 / 0.410
G21     118.2          67.7                8.2 +/-    1.59       8.8 +/-    1.59  0.080 / 0.110
G24     88.9           29.4                6.1 +/-    0.70      10.9 +/-    0.70  0.090 / 0.120
G27     287.8          37.7                8.5 +/-    1.44      12.8 +/-    1.44  0.080 / 0.080
G32     215.4          40.5               11.8 +/-    1.82      17.1 +/-    1.82  0.060 / 0.080