PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/22-13:57:50
G03     198.0          39.1               10.0 +/-    1.45      14.8 +/-    1.45  0.260 / 0.410
G07     272.0          25.9                9.9 +/-    1.78      18.9 +/-    1.78  0.250 / 0.320
G08     155.6          11.6                6.8 +/-    7.83      18.2 +/-    7.83  0.220 / 0.200
G09     318.0          44.1                7.9 +/-    0.69      10.8 +/-    0.69  0.130 / 0.170
G16     54.8           54.6                8.1 +/-    0.64       9.7 +/-    0.64  0.130 / 0.200
G22     180.4          20.8                9.3 +/-    3.36      20.1 +/-    3.36  0.100 / 0.180
G23     13.2           78.5                8.1 +/-    0.60       8.2 +/-    0.60  0.040 / 0.040
G26     43.9           26.1                7.2 +/-    2.72      13.8 +/-    2.72  0.030 / 0.040
G27     119.3          23.1                9.2 +/-    1.54      18.8 +/-    1.54  0.030 / 0.030