PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-22:58:00
G01     317.6          20.8                9.7 +/-    3.21      20.9 +/-    3.21  0.160 / 0.290
G08     253.4          11.3               11.9 +/-    3.05      32.3 +/-    3.05  0.130 / 0.260
G10     84.5           52.0               10.1 +/-    0.58      12.5 +/-    0.58  0.160 / 0.430
G11     299.3          25.3               10.3 +/-    1.44      20.0 +/-    1.44  0.080 / 0.060
G14     311.9          71.4                9.9 +/-    0.72      10.4 +/-    0.72  0.040 / 0.060
G18     105.0          26.0               12.8 +/-    0.57      24.5 +/-    0.57  0.100 / 0.260
G22     302.0          12.2               10.6 +/-    2.98      28.2 +/-    2.98  0.110 / 0.220
G25     96.6           10.0              -17.4 +/-   16.10     -48.6 +/-   16.10  0.020 / 0.030
G31     179.2          42.3               14.0 +/-    1.16      19.7 +/-    1.16  0.030 / 0.030
G32     8.3            66.5               10.0 +/-    0.37      10.8 +/-    0.37  0.030 / 0.040