PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-00:27:50
G08     271.7          20.4                6.5 +/-    2.27      14.2 +/-    2.27  0.030 / 0.030
G10     50.5           60.2                6.2 +/-    0.50       7.0 +/-    0.50  0.030 / 0.040
G14     254.2          61.7                6.9 +/-    0.95       7.7 +/-    0.95  0.090 / 0.140
G18     314.7          27.7                5.6 +/-    2.58      10.4 +/-    2.58  0.080 / 0.170
G20     89.4           40.5                6.8 +/-    0.42       9.9 +/-    0.42  0.040 / 0.060
G21     153.7          21.0                9.4 +/-    1.33      20.1 +/-    1.33  0.040 / 0.060
G24     41.1           12.1                5.1 +/-    1.62      13.6 +/-    1.62  0.130 / 0.210
G27     237.1          20.0               10.1 +/-    1.69      22.3 +/-    1.69  0.190 / 0.220
G31     178.9          25.1                9.2 +/-    1.36      18.0 +/-    1.36  0.120 / 0.220
G32     321.4          76.2                6.9 +/-    0.66       7.1 +/-    0.66  0.110 / 0.240