PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/29-18:43:00
G01     317.9          20.2                9.3 +/-    2.59      20.4 +/-    2.59  0.030 / 0.040
G08     255.5          11.7                4.6 +/-   28.22      12.3 +/-   28.22  0.030 / 0.040
G10     83.7           52.1                9.0 +/-    1.17      11.1 +/-    1.17  0.350 / 0.370
G11     301.4          23.7                8.8 +/-    2.87      17.8 +/-    2.87  0.160 / 0.220
G14     305.9          70.9                8.9 +/-    0.76       9.3 +/-    0.76  0.060 / 0.050
G18     105.0          25.3                8.7 +/-    1.72      17.0 +/-    1.72  0.060 / 0.070
G22     301.9          12.3                8.3 +/-    3.60      22.0 +/-    3.60  0.300 / 0.320
G25     98.7           9.7                -8.0 +/-   35.66     -22.3 +/-   35.66  0.360 / 0.360
G31     176.5          44.3               11.1 +/-    0.91      15.1 +/-    0.91  0.040 / 0.040
G32     11.7           65.7                8.7 +/-    0.52       9.5 +/-    0.52  0.040 / 0.040