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                4.9 +/-    0.92       4.9 +/-    0.92  0.130 / 0.170
G05     172.3          19.3                4.2 +/-    1.54       9.3 +/-    1.54  0.090 / 0.150
G06     39.7           50.7                4.8 +/-    0.49       6.0 +/-    0.49  0.020 / 0.040
G12     321.2          61.5                4.9 +/-    0.53       5.5 +/-    0.53  0.030 / 0.040
G17     75.6           18.6                3.3 +/-    1.11       7.6 +/-    1.11  0.170 / 0.350
G19     64.5           32.5                3.4 +/-    1.44       5.7 +/-    1.44  0.390 / 0.230
G24     240.2          30.7                5.3 +/-    1.83       9.1 +/-    1.83  0.040 / 0.040
G25     317.1          17.4                2.6 +/-    2.29       6.0 +/-    2.29  0.050 / 0.040