PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/09-09:57:10
G02     32.9           54.9                6.5 +/-    0.46       7.8 +/-    0.46  0.030 / 0.050
G05     147.2          59.0                9.5 +/-    0.78      10.8 +/-    0.78  0.030 / 0.070
G06     51.9           17.3                3.7 +/-    1.06       8.6 +/-    1.06  0.050 / 0.050
G12     196.1          69.8                7.9 +/-    1.02       8.4 +/-    1.02  0.050 / 0.060
G25     300.2          51.8                6.4 +/-    1.14       7.9 +/-    1.14  0.040 / 0.050
G29     304.6          25.1                5.9 +/-    1.51      11.5 +/-    1.51  0.030 / 0.050