PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/03-19:42:50
G08     274.3          20.6                9.7 +/-    2.29      21.1 +/-    2.29  0.220 / 0.360
G10     45.8           61.3                7.9 +/-    0.72       8.8 +/-    0.72  0.300 / 0.370
G11     315.9          12.2                7.0 +/-   16.25      18.7 +/-   16.25  0.130 / 0.330
G14     253.2          61.8                9.6 +/-    0.70      10.7 +/-    0.70  0.190 / 0.370
G18     85.6           39.5                8.8 +/-    2.14      12.8 +/-    2.14  0.110 / 0.160
G21     151.7          17.6                9.4 +/-    0.99      22.0 +/-    0.99  0.140 / 0.200
G24     43.6           16.2                7.6 +/-    3.23      18.4 +/-    3.23  0.030 / 0.020
G27     236.1          20.3                9.2 +/-    3.04      20.1 +/-    3.04  0.040 / 0.020
G31     181.3          21.2               12.2 +/-    1.62      26.1 +/-    1.62  0.110 / 0.250
G32     303.9          75.6                8.6 +/-    0.50       8.9 +/-    0.50  0.110 / 0.230