PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-17:43:00
G01     232.7          22.9               12.6 +/-    2.18      25.9 +/-    2.18  0.030 / 0.030
G03     299.5          65.4               11.6 +/-    0.64      12.7 +/-    0.64  0.030 / 0.030
G14     78.4           30.7                8.8 +/-    1.36      15.3 +/-    1.36  0.120 / 0.120
G16     153.3          36.8               12.8 +/-    0.62      19.6 +/-    0.62  0.130 / 0.140
G22     236.0          75.6               11.6 +/-    0.56      11.9 +/-    0.56  0.080 / 0.060
G23     302.1          33.2                8.1 +/-    1.60      13.2 +/-    1.60  0.110 / 0.060
G26     110.8          51.5               11.7 +/-    0.75      14.5 +/-    0.75  0.070 / 0.070
G31     42.7           38.7                8.7 +/-    0.97      12.9 +/-    0.97  0.080 / 0.080
G32     93.4           10.3               12.3 +/-    2.36      34.1 +/-    2.36  0.100 / 0.160