PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/31-03:27:50
G02     35.7           52.8                5.8 +/-    0.72       7.1 +/-    0.72  0.030 / 0.040
G05     132.9          64.0                7.2 +/-    0.42       8.0 +/-    0.42  0.020 / 0.030
G06     53.3           17.9                4.0 +/-    2.74       9.3 +/-    2.74  0.040 / 0.040
G12     202.1          67.9                6.8 +/-    0.29       7.3 +/-    0.29  0.040 / 0.040
G25     292.2          55.8                5.4 +/-    4.66       6.4 +/-    4.66  0.030 / 0.030
G29     311.4          34.2                3.6 +/-    1.43       5.8 +/-    1.43  0.040 / 0.040