PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/22-21:57:30
G03     200.2          43.8               10.5 +/-    1.44      14.4 +/-    1.44  0.060 / 0.140
G07     267.9          23.3                7.5 +/-    1.79      15.3 +/-    1.79  0.060 / 0.160
G09     315.9          38.5                9.7 +/-    1.05      14.4 +/-    1.05  0.030 / 0.060
G16     66.1           61.7               11.4 +/-    0.70      12.7 +/-    0.70  0.030 / 0.040
G22     184.0          28.2               11.4 +/-    1.40      20.8 +/-    1.40  0.050 / 0.180
G23     346.7          72.0                9.5 +/-    0.74       9.9 +/-    0.74  0.060 / 0.140
G26     45.8           32.8                8.5 +/-    0.73      14.1 +/-    0.73  0.040 / 0.080
G27     122.7          20.0               13.3 +/-    1.77      29.3 +/-    1.77  0.040 / 0.080