PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/12-17:58:00
G01     315.4          24.6                6.0 +/-    1.74      11.8 +/-    1.74  0.330 / 0.330
G10     91.6           48.7                8.2 +/-    0.91      10.5 +/-    0.91  0.250 / 0.260
G11     296.5          25.5                5.9 +/-    0.76      11.4 +/-    0.76  0.030 / 0.050
G14     322.5          70.7                6.3 +/-    0.48       6.6 +/-    0.48  0.030 / 0.040
G18     109.4          21.2                8.0 +/-    2.27      17.2 +/-    2.27  0.170 / 0.190
G22     304.7          16.7                7.2 +/-    2.83      17.3 +/-    2.83  0.180 / 0.260
G25     94.0           12.2               12.1 +/-    1.91      32.0 +/-    1.91  0.160 / 0.200
G31     174.4          51.0                9.4 +/-    0.81      11.8 +/-    0.81  0.110 / 0.150
G32     21.2           61.4                6.7 +/-    0.59       7.5 +/-    0.59  0.040 / 0.030