PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-20:42:50
G02     11.1           70.0               11.1 +/-    0.53      11.7 +/-    0.53  0.050 / 0.070
G05     157.4          46.2               13.6 +/-    0.95      18.0 +/-    0.95  0.030 / 0.070
G06     46.2           27.7                8.9 +/-    0.51      16.4 +/-    0.51  0.030 / 0.030
G12     245.0          81.0                9.8 +/-    0.42       9.9 +/-    0.42  0.030 / 0.030
G19     84.9           22.2                9.6 +/-    0.97      20.1 +/-    0.97  0.040 / 0.050
G24     218.4          13.8               15.3 +/-    1.32      39.2 +/-    1.32  0.050 / 0.060
G25     313.1          40.3                9.4 +/-    1.38      13.6 +/-    1.38  0.190 / 0.430
G29     294.7          15.3               10.2 +/-    1.73      25.1 +/-    1.73  0.140 / 0.430