PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-17:27:50
G01     275.5          41.2                9.6 +/-    2.03      13.6 +/-    2.03  0.060 / 0.050
G03     315.5          29.1                7.7 +/-    1.14      13.7 +/-    1.14  0.060 / 0.060
G10     127.8          20.0                7.8 +/-    1.67      17.3 +/-    1.67  0.020 / 0.020
G11     256.2          21.9                8.8 +/-    4.70      18.6 +/-    4.70  0.020 / 0.020
G14     37.9           52.9                8.7 +/-    1.92      10.6 +/-    1.92  0.050 / 0.060
G22     314.6          49.8                7.9 +/-    0.82      10.0 +/-    0.82  0.040 / 0.060
G25     55.9           18.0                6.3 +/-    2.89      14.5 +/-    2.89  0.090 / 0.150
G26     149.7          22.5               10.8 +/-    4.41      22.4 +/-    4.41  0.080 / 0.160
G31     63.6           76.3                8.4 +/-    0.33       8.6 +/-    0.33  0.120 / 0.100
G32     61.7           34.1                7.2 +/-    1.39      11.6 +/-    1.39  0.110 / 0.110