PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-11:27:50
G02     274.2          80.7                4.6 +/-    0.44       4.7 +/-    0.44  0.080 / 0.180
G05     172.3          19.3                4.5 +/-    1.15      10.2 +/-    1.15  0.070 / 0.170
G06     39.7           50.7                4.0 +/-    0.34       5.0 +/-    0.34  0.080 / 0.140
G12     321.2          61.5                4.6 +/-    1.06       5.1 +/-    1.06  0.080 / 0.130
G17     75.6           18.6                3.5 +/-    0.70       7.9 +/-    0.70  0.030 / 0.020
G19     64.5           32.5                4.4 +/-    0.82       7.4 +/-    0.82  0.040 / 0.040
G24     240.2          30.7                6.1 +/-    1.27      10.5 +/-    1.27  0.110 / 0.210
G25     317.1          17.4                4.8 +/-    2.30      11.3 +/-    2.30  0.090 / 0.180