PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/27-03:57:30
G02     262.2          80.0                4.0 +/-    0.66       4.1 +/-    0.66  0.080 / 0.100
G05     169.6          20.4                5.4 +/-    1.34      11.8 +/-    1.34  0.070 / 0.110
G06     38.2           60.0                3.1 +/-    0.42       3.5 +/-    0.42  0.220 / 0.190
G12     320.7          53.9                3.0 +/-    1.08       3.6 +/-    1.08  0.080 / 0.200
G17     75.3           17.8                2.8 +/-    1.73       6.5 +/-    1.73  0.090 / 0.060
G19     60.8           36.3                3.0 +/-    1.44       4.7 +/-    1.44  0.080 / 0.050
G24     237.8          31.7                4.2 +/-    1.11       7.1 +/-    1.11  0.040 / 0.040
G25     317.1          18.5                1.1 +/-    1.29       2.6 +/-    1.29  0.040 / 0.030