PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/09-21:43:10
G01     273.8          41.2                9.1 +/-    2.20      13.0 +/-    2.20  0.040 / 0.050
G03     315.3          27.3                7.7 +/-    1.67      14.3 +/-    1.67  0.050 / 0.060
G10     128.4          19.3                9.2 +/-    3.22      20.6 +/-    3.22  0.100 / 0.140
G11     252.9          21.7               10.4 +/-    1.42      21.9 +/-    1.42  0.150 / 0.190
G14     41.2           51.1                7.4 +/-    0.62       9.2 +/-    0.62  0.020 / 0.020
G22     314.3          48.9                7.8 +/-    1.16       9.9 +/-    1.16  0.020 / 0.020
G25     54.0           17.2                7.1 +/-    2.85      16.7 +/-    2.85  0.050 / 0.080
G26     151.2          22.2               11.4 +/-    1.76      23.7 +/-    1.76  0.060 / 0.070
G31     65.0           78.1                8.6 +/-    0.73       8.8 +/-    0.73  0.040 / 0.080
G32     61.6           34.8                7.5 +/-    2.03      11.9 +/-    2.03  0.040 / 0.060