PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/29-19:58:10
G01     288.3          40.5                5.2 +/-    1.16       7.5 +/-    1.16  0.080 / 0.090
G03     312.7          19.1                9.5 +/-    1.72      21.3 +/-    1.72  0.050 / 0.090
G10     121.2          27.7               10.8 +/-    1.06      19.8 +/-    1.06  0.050 / 0.090
G11     264.3          25.6               12.5 +/-    4.16      24.0 +/-    4.16  0.060 / 0.080
G14     26.8           57.7                9.1 +/-    1.68      10.5 +/-    1.68  0.030 / 0.010
G22     314.0          39.8                8.5 +/-    1.02      12.4 +/-    1.02  0.030 / 0.020
G25     64.8           18.9                8.6 +/-    2.30      19.5 +/-    2.30  0.120 / 0.140
G26     156.5          14.2               12.6 +/-    1.84      32.0 +/-    1.84  0.070 / 0.150
G31     125.1          80.0               10.9 +/-    0.48      11.0 +/-    0.48  0.060 / 0.040
G32     52.5           41.1                7.7 +/-    0.78      11.0 +/-    0.78  0.050 / 0.050