PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/28-17:27:50
G01     303.4          35.4                8.0 +/-    0.72      12.5 +/-    0.72  0.040 / 0.080
G03     308.0          10.3              -16.4 +/-   23.02     -45.4 +/-   23.02  0.040 / 0.080
G10     110.1          37.5                8.8 +/-    0.95      13.3 +/-    0.95  0.030 / 0.050
G11     279.6          27.5                7.1 +/-    1.28      13.1 +/-    1.28  0.040 / 0.060
G14     3.2            65.3                6.8 +/-    0.52       7.4 +/-    0.52  0.060 / 0.130
G22     311.2          29.7                6.4 +/-    3.12      11.4 +/-    3.12  0.060 / 0.120
G25     78.6           17.7                8.4 +/-    0.96      19.6 +/-    0.96  0.020 / 0.030
G31     162.0          69.5                8.7 +/-    1.07       9.3 +/-    1.07  0.020 / 0.040
G32     40.7           49.3                7.7 +/-    0.62       9.8 +/-    0.62  0.100 / 0.180