PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-04:13:00
G03     192.5          24.0                4.6 +/-    2.28       9.1 +/-    2.28  0.120 / 0.120
G07     289.1          38.0                5.4 +/-    1.98       8.1 +/-    1.98  0.080 / 0.110
G08     144.3          25.5                7.3 +/-    1.51      14.1 +/-    1.51  0.060 / 0.080
G09     321.7          62.8                4.4 +/-    0.59       4.9 +/-    0.59  0.060 / 0.090
G16     43.8           38.7                3.3 +/-    1.07       5.0 +/-    1.07  0.050 / 0.090
G23     107.2          80.1                4.5 +/-    0.26       4.6 +/-    0.26  0.060 / 0.100
G26     43.7           12.6                2.3 +/-    1.76       6.0 +/-    1.76  0.040 / 0.040
G27     102.3          32.4                5.6 +/-    0.79       9.3 +/-    0.79  0.040 / 0.040