PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/05-22:27:50
G01     257.1          37.7                6.9 +/-    2.28      10.4 +/-    2.28  0.040 / 0.040
G03     316.4          38.5                5.1 +/-    0.89       7.5 +/-    0.89  0.030 / 0.040
G11     241.6          15.5                8.4 +/-    2.07      20.6 +/-    2.07  0.130 / 0.110
G14     55.3           43.5                6.6 +/-    1.55       9.1 +/-    1.55  0.150 / 0.140
G22     310.0          60.6                4.6 +/-    0.99       5.2 +/-    0.99  0.020 / 0.030
G23     282.5          15.5                0.1 +/-    4.99       0.3 +/-    4.99  0.020 / 0.030
G25     43.2           12.5                5.9 +/-    3.27      15.7 +/-    3.27  0.050 / 0.090
G26     143.2          32.8               10.4 +/-    0.99      17.2 +/-    0.99  0.060 / 0.090
G31     42.5           66.3                7.2 +/-    0.37       7.8 +/-    0.37  0.050 / 0.100
G32     72.5           27.0                5.0 +/-    1.71       9.4 +/-    1.71  0.060 / 0.100