PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-17:58:00
G02     26.7           60.1                8.6 +/-    1.22       9.8 +/-    1.22  0.040 / 0.050
G05     145.3          59.4               10.8 +/-    0.95      12.3 +/-    0.95  0.030 / 0.050
G06     52.9           15.9                7.7 +/-    0.84      18.7 +/-    0.84  0.030 / 0.050
G12     190.7          67.4                7.5 +/-    0.94       8.0 +/-    0.94  0.030 / 0.040
G19     96.4           14.6                9.8 +/-    1.26      24.6 +/-    1.26  0.040 / 0.060
G25     300.0          52.6                8.3 +/-    0.83      10.2 +/-    0.83  0.040 / 0.050
G29     304.6          24.6                9.1 +/-    2.37      18.0 +/-    2.37  0.110 / 0.170