PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/19-11:27:30
G02     35.3           52.8                4.7 +/-    0.49       5.8 +/-    0.49  0.030 / 0.040
G05     144.4          61.8                7.1 +/-    0.78       7.9 +/-    0.78  0.030 / 0.040
G06     53.9           14.3                1.8 +/-    1.55       4.6 +/-    1.55  0.030 / 0.060
G12     190.1          64.8                6.9 +/-    0.70       7.5 +/-    0.70  0.030 / 0.050
G25     295.6          53.8                4.5 +/-    1.08       5.5 +/-    1.08  0.030 / 0.040
G29     307.2          27.7                1.9 +/-    0.76       3.4 +/-    0.76  0.030 / 0.050