PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-12:42:20
G02     33.3           54.6                4.5 +/-    0.75       5.4 +/-    0.75  0.040 / 0.040
G05     148.7          60.1                8.6 +/-    0.48       9.8 +/-    0.48  0.030 / 0.030
G06     53.4           15.0                2.1 +/-    1.72       5.2 +/-    1.72  0.040 / 0.030
G12     192.2          66.6                7.0 +/-    0.33       7.6 +/-    0.33  0.030 / 0.030
G25     297.8          52.8                7.1 +/-    2.26       8.7 +/-    2.26  0.140 / 0.120
G29     306.3          26.8                5.3 +/-    1.06      10.0 +/-    1.06  0.080 / 0.130