PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-05:42:40
G03     192.3          23.8                5.7 +/-    1.76      11.5 +/-    1.76  0.110 / 0.100
G07     289.5          38.5                4.6 +/-    1.82       6.9 +/-    1.82  0.090 / 0.080
G08     145.5          25.0                6.2 +/-    1.46      12.1 +/-    1.46  0.060 / 0.070
G09     321.3          61.8                4.7 +/-    0.94       5.2 +/-    0.94  0.050 / 0.070
G16     43.8           39.0                4.2 +/-    0.95       6.2 +/-    0.95  0.030 / 0.040
G23     109.2          79.3                5.8 +/-    0.66       5.9 +/-    0.66  0.030 / 0.030
G26     43.7           12.6                2.1 +/-    2.88       5.6 +/-    2.88  0.060 / 0.090
G27     102.5          32.5                6.9 +/-    1.10      11.5 +/-    1.10  0.050 / 0.090