PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-16:58:00
G01     261.2          39.0               10.5 +/-    3.02      15.6 +/-    3.02  0.050 / 0.040
G03     316.7          39.4                8.0 +/-    0.94      11.8 +/-    0.94  0.050 / 0.040
G10     133.7          11.4               10.1 +/-    2.56      27.3 +/-    2.56  0.060 / 0.060
G11     247.0          17.0                9.6 +/-    1.76      22.7 +/-    1.76  0.060 / 0.070
G14     50.1           47.0                7.3 +/-    1.36       9.6 +/-    1.36  0.020 / 0.030
G22     311.4          60.4                8.0 +/-    0.72       9.1 +/-    0.72  0.030 / 0.030
G25     46.6           14.6                6.3 +/-    3.74      15.7 +/-    3.74  0.230 / 0.250
G26     142.3          31.4               11.8 +/-    0.77      20.0 +/-    0.77  0.110 / 0.250
G31     44.7           66.0                8.9 +/-    0.39       9.6 +/-    0.39  0.170 / 0.190
G32     70.9           27.2                7.4 +/-    1.56      13.7 +/-    1.56  0.200 / 0.320