PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-03:42:40
G02     36.7           51.9                5.5 +/-    0.78       6.8 +/-    0.78  0.030 / 0.030
G05     130.4          64.8                8.6 +/-    0.74       9.4 +/-    0.74  0.030 / 0.040
G06     53.9           17.1                4.3 +/-    2.20      10.1 +/-    2.20  0.040 / 0.050
G12     200.5          66.6                7.8 +/-    0.30       8.4 +/-    0.30  0.040 / 0.040
G25     290.0          56.5                6.2 +/-    3.29       7.2 +/-    3.29  0.030 / 0.030
G29     312.4          35.2                5.1 +/-    0.70       8.0 +/-    0.70  0.030 / 0.030