PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/27-10:57:20
G02     36.7           51.6                3.5 +/-    0.62       4.3 +/-    0.62  0.040 / 0.030
G05     141.2          63.1                5.9 +/-    0.24       6.5 +/-    0.24  0.030 / 0.020
G06     54.6           13.5                1.4 +/-    1.50       3.7 +/-    1.50  0.030 / 0.040
G12     190.1          63.8                5.1 +/-    0.29       5.6 +/-    0.29  0.030 / 0.040
G25     293.5          54.7                4.0 +/-    1.72       4.7 +/-    1.72  0.140 / 0.110
G29     308.0          28.6                2.2 +/-    0.63       3.9 +/-    0.63  0.110 / 0.110