PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/29-01:28:00
G01     244.6          31.8                8.7 +/-    1.07      14.6 +/-    1.07  0.040 / 0.040
G03     314.3          47.9                5.0 +/-    0.72       6.5 +/-    0.72  0.040 / 0.040
G14     67.2           36.3                4.3 +/-    0.55       6.6 +/-    0.55  0.060 / 0.220
G16     164.4          20.9                8.7 +/-    0.86      18.8 +/-    0.86  0.060 / 0.190
G22     295.9          70.1                7.3 +/-    1.00       7.7 +/-    1.00  0.030 / 0.050
G23     290.4          21.7                6.7 +/-    1.72      14.2 +/-    1.72  0.030 / 0.050
G26     136.2          41.4                9.5 +/-    0.97      13.6 +/-    0.97  0.090 / 0.110
G31     38.8           57.3                4.6 +/-    0.73       5.4 +/-    0.73  0.140 / 0.140
G32     81.3           21.4                5.2 +/-    1.14      11.1 +/-    1.14  0.060 / 0.160