PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/31-18:12:50
G01     270.3          40.8               11.5 +/-    2.91      16.5 +/-    2.91  0.040 / 0.050
G03     316.1          31.9                9.1 +/-    1.81      15.3 +/-    1.81  0.040 / 0.050
G10     130.0          17.0               12.1 +/-    1.48      28.8 +/-    1.48  0.050 / 0.060
G11     252.3          20.3               11.0 +/-    3.60      24.1 +/-    3.60  0.040 / 0.060
G14     42.8           50.5                9.3 +/-    0.94      11.7 +/-    0.94  0.030 / 0.040
G22     314.0          52.9                9.9 +/-    0.87      12.0 +/-    0.87  0.030 / 0.030
G25     52.4           16.9                8.6 +/-    1.00      20.3 +/-    1.00  0.050 / 0.060
G26     147.6          25.4               15.4 +/-    1.39      29.7 +/-    1.39  0.060 / 0.080
G31     54.1           73.5               10.6 +/-    0.42      11.0 +/-    0.42  0.130 / 0.200
G32     64.8           31.9                9.1 +/-    1.60      15.4 +/-    1.60  0.100 / 0.210