PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-01:58:10
G01     317.3          21.3               11.0 +/-    3.51      23.5 +/-    3.51  0.030 / 0.060
G08     252.4          11.0               14.7 +/-    6.51      40.0 +/-    6.51  0.040 / 0.060
G10     85.0           51.8                9.9 +/-    0.80      12.3 +/-    0.80  0.030 / 0.030
G11     298.0          26.2                9.7 +/-    1.56      18.5 +/-    1.56  0.030 / 0.030
G14     315.2          71.6               10.8 +/-    0.56      11.3 +/-    0.56  0.230 / 0.200
G18     105.0          26.6                8.8 +/-    2.40      16.7 +/-    2.40  0.190 / 0.220
G22     302.3          13.0                6.8 +/-    7.06      17.8 +/-    7.06  0.320 / 0.300
G25     94.7           10.2               -0.7 +/-   35.21      -2.1 +/-   35.21  0.150 / 0.260
G31     177.0          44.8               13.2 +/-    0.82      17.9 +/-    0.82  0.040 / 0.050
G32     8.9            66.2               10.1 +/-    0.36      11.0 +/-    0.36  0.050 / 0.040