PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-06:27:40
G07     346.8          62.7                4.6 +/-    0.81       5.1 +/-    0.81  0.030 / 0.030
G08     90.5           53.2                6.1 +/-    0.62       7.4 +/-    0.62  0.040 / 0.040
G09     181.8          65.5                6.1 +/-    0.56       6.6 +/-    0.56  0.050 / 0.150
G11     142.9          18.0                6.0 +/-    2.31      13.8 +/-    2.31  0.070 / 0.120
G23     157.1          33.8                5.9 +/-    0.98       9.7 +/-    0.98  0.030 / 0.030
G27     49.6           28.0                2.6 +/-    1.79       4.7 +/-    1.79  0.030 / 0.030
G28     240.1          27.7                8.1 +/-    1.44      14.8 +/-    1.44  0.070 / 0.090
G30     306.0          38.1                3.5 +/-    1.73       5.3 +/-    1.73  0.080 / 0.070