PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/04-04:57:50
G01     65.3           31.1                5.2 +/-    0.81       8.8 +/-    0.81  0.030 / 0.030
G07     138.5          28.8                8.3 +/-    1.18      14.9 +/-    1.18  0.030 / 0.030
G11     53.4           32.8                4.5 +/-    1.37       7.4 +/-    1.37  0.130 / 0.260
G13     269.4          38.3                6.3 +/-    2.94       9.5 +/-    2.94  0.140 / 0.250
G15     297.4          16.9                4.4 +/-    2.03      10.5 +/-    2.03  0.050 / 0.050
G17     236.9          72.3                6.8 +/-    0.62       7.1 +/-    0.62  0.050 / 0.060
G19     225.2          46.9                7.0 +/-    2.05       9.2 +/-    2.05  0.030 / 0.030
G28     6.7            61.2                4.8 +/-    1.29       5.4 +/-    1.29  0.030 / 0.030
G30     139.1          63.6                8.0 +/-    0.81       8.8 +/-    0.81  0.120 / 0.110