PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/17-10:43:00
G02     38.1           50.9                4.3 +/-    0.63       5.3 +/-    0.63  0.030 / 0.040
G05     130.6          66.3                4.6 +/-    0.48       5.0 +/-    0.48  0.030 / 0.040
G06     56.4           12.9                2.0 +/-    1.22       5.3 +/-    1.22  0.090 / 0.120
G12     194.2          62.0                5.3 +/-    0.55       5.9 +/-    0.55  0.130 / 0.120
G25     277.0          60.8                4.2 +/-    0.64       4.7 +/-    0.64  0.040 / 0.060
G29     312.3          33.9                3.0 +/-    1.63       4.9 +/-    1.63  0.040 / 0.050