PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/30-23:28:00
G02     38.7           50.1                8.6 +/-    0.46      10.8 +/-    0.46  0.030 / 0.060
G05     122.8          66.7               10.8 +/-    0.68      11.7 +/-    0.68  0.040 / 0.060
G06     56.5           12.2                7.7 +/-    1.89      20.4 +/-    1.89  0.040 / 0.040
G12     196.5          63.0               10.3 +/-    0.97      11.4 +/-    0.97  0.040 / 0.040
G25     286.7          56.7                8.4 +/-    1.29       9.8 +/-    1.29  0.170 / 0.180
G29     312.9          34.8                9.1 +/-    1.26      14.5 +/-    1.26  0.180 / 0.240