PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/03-18:57:40
G08     295.6          22.7                9.4 +/-    0.81      19.3 +/-    0.81  0.080 / 0.080
G10     0.6            62.9                7.7 +/-    0.74       8.5 +/-    0.74  0.110 / 0.100
G14     228.1          44.7               10.8 +/-    2.26      14.5 +/-    2.26  0.080 / 0.090
G18     62.1           51.2                8.0 +/-    0.68      10.0 +/-    0.68  0.120 / 0.160
G21     144.1          37.6               10.6 +/-    0.64      16.0 +/-    0.64  0.030 / 0.020
G24     59.4           27.4                6.7 +/-    1.62      12.4 +/-    1.62  0.040 / 0.020
G27     255.4          32.6                8.3 +/-    2.15      13.8 +/-    2.15  0.060 / 0.070
G32     241.1          64.4                9.3 +/-    0.70      10.2 +/-    0.70  0.050 / 0.080