PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-18:12:40
G01     236.8          26.3               11.8 +/-    1.41      22.4 +/-    1.41  0.090 / 0.180
G03     307.0          60.6               11.2 +/-    0.89      12.7 +/-    0.89  0.090 / 0.150
G14     73.9           33.4               10.5 +/-    1.01      17.2 +/-    1.01  0.040 / 0.060
G16     156.5          31.8               14.0 +/-    1.52      23.7 +/-    1.52  0.040 / 0.060
G22     260.2          76.2               10.4 +/-    0.78      10.7 +/-    0.78  0.030 / 0.030
G23     298.2          29.6                9.4 +/-    0.81      16.6 +/-    0.81  0.030 / 0.040
G26     118.9          48.9               12.8 +/-    1.43      16.4 +/-    1.43  0.070 / 0.170
G31     41.4           43.5                8.7 +/-    0.95      12.0 +/-    0.95  0.080 / 0.160
G32     89.6           13.4               11.5 +/-    1.62      29.6 +/-    1.62  0.090 / 0.150