PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/11-05:43:10
G02     55.5           35.4                1.8 +/-    0.86       2.8 +/-    0.86  0.040 / 0.060
G05     66.9           64.7                4.0 +/-    0.40       4.3 +/-    0.40  0.040 / 0.050
G12     187.6          41.1                5.5 +/-    1.26       7.9 +/-    1.26  0.070 / 0.060
G13     131.8          11.2               -2.8 +/-   19.58      -7.6 +/-   19.58  0.080 / 0.060
G21     268.2          16.8                5.4 +/-    3.01      12.9 +/-    3.01  0.030 / 0.030
G25     242.0          55.5                5.0 +/-    0.95       5.9 +/-    0.95  0.030 / 0.040
G29     329.3          54.2                2.8 +/-    0.64       3.3 +/-    0.64  0.040 / 0.040