PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-16:58:10
G01     275.7          41.3                8.9 +/-    1.19      12.7 +/-    1.19  0.070 / 0.110
G03     315.5          29.3               10.0 +/-    1.63      17.7 +/-    1.63  0.070 / 0.120
G10     127.7          20.1               12.1 +/-    1.24      26.6 +/-    1.24  0.030 / 0.030
G11     256.6          21.9                5.9 +/-    4.65      12.3 +/-    4.65  0.030 / 0.030
G14     37.5           53.2                9.9 +/-    0.42      12.0 +/-    0.42  0.050 / 0.060
G22     314.6          50.0                7.3 +/-    1.28       9.1 +/-    1.28  0.060 / 0.060
G25     56.2           18.0                8.5 +/-    1.01      19.6 +/-    1.01  0.040 / 0.090
G26     149.6          22.4               13.5 +/-    1.29      28.0 +/-    1.29  0.040 / 0.080
G31     63.7           76.2               10.1 +/-    1.05      10.3 +/-    1.05  0.080 / 0.120
G32     61.6           34.1                9.1 +/-    1.13      14.6 +/-    1.13  0.070 / 0.150