PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-14:58:00
G01     318.0          20.2                5.3 +/-    2.14      11.7 +/-    2.14  0.170 / 0.230
G08     257.6          11.7                5.6 +/-   10.02      14.9 +/-   10.02  0.140 / 0.220
G10     83.8           52.0                5.2 +/-    1.29       6.4 +/-    1.29  0.030 / 0.040
G11     303.0          22.4                6.1 +/-    1.17      12.7 +/-    1.17  0.040 / 0.040
G14     301.4          70.2                5.3 +/-    0.64       5.6 +/-    0.64  0.070 / 0.050
G22     302.5          14.1                5.4 +/-    2.01      13.8 +/-    2.01  0.060 / 0.040
G25     99.5           9.7               -10.1 +/-   30.74     -28.3 +/-   30.74  0.170 / 0.300
G31     174.6          46.0                8.1 +/-    0.83      10.8 +/-    0.83  0.180 / 0.360
G32     14.4           64.8                5.5 +/-    0.59       6.0 +/-    0.59  0.050 / 0.030