PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-04:28:00
G07     347.5          62.9                6.1 +/-    0.71       6.8 +/-    0.71  0.060 / 0.080
G08     85.8           52.6                8.9 +/-    0.39      10.9 +/-    0.39  0.050 / 0.080
G09     179.1          62.8                9.8 +/-    1.35      10.9 +/-    1.35  0.130 / 0.390
G11     142.8          18.7                7.5 +/-    2.68      17.1 +/-    2.68  0.120 / 0.420
G23     157.8          33.4                8.8 +/-    1.64      14.5 +/-    1.64  0.060 / 0.080
G27     48.6           27.1                5.5 +/-    1.36      10.3 +/-    1.36  0.080 / 0.090
G28     241.0          28.1                7.2 +/-    1.76      13.1 +/-    1.76  0.040 / 0.040
G30     306.4          38.1                5.1 +/-    0.86       7.6 +/-    0.86  0.040 / 0.050