PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/21-18:42:40
G01     277.2          41.3               12.1 +/-    1.24      17.2 +/-    1.24  0.040 / 0.050
G03     315.1          27.0               10.9 +/-    1.51      20.3 +/-    1.51  0.040 / 0.060
G10     127.0          21.1               11.5 +/-    0.86      24.7 +/-    0.86  0.020 / 0.020
G11     256.7          22.5               11.4 +/-    5.52      23.6 +/-    5.52  0.020 / 0.020
G14     37.0           53.3               10.5 +/-    2.28      12.7 +/-    2.28  0.070 / 0.130
G22     314.6          47.9               11.5 +/-    1.25      14.9 +/-    1.25  0.080 / 0.130
G25     56.9           18.1                8.9 +/-    2.60      20.5 +/-    2.60  0.050 / 0.080
G26     151.0          21.1               12.0 +/-    3.55      25.6 +/-    3.55  0.060 / 0.080
G31     69.8           77.9               10.4 +/-    0.41      10.7 +/-    0.41  0.050 / 0.050
G32     60.3           35.2               10.0 +/-    1.45      15.9 +/-    1.45  0.070 / 0.070