PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-11:27:50
G03     185.6          10.4                1.9 +/-    1.72       5.3 +/-    1.72  0.120 / 0.130
G07     306.2          47.9                4.4 +/-    2.20       5.7 +/-    2.20  0.100 / 0.080
G08     134.4          36.6                5.7 +/-    0.88       8.7 +/-    0.88  0.090 / 0.060
G09     313.5          73.5                4.8 +/-    0.40       5.0 +/-    0.40  0.070 / 0.060
G16     42.0           28.3                1.9 +/-    2.46       3.5 +/-    2.46  0.040 / 0.030
G23     139.2          64.5                6.1 +/-    0.68       6.6 +/-    0.68  0.030 / 0.020
G27     86.2           37.0                5.6 +/-    0.79       8.5 +/-    0.79  0.150 / 0.210
G30     283.5          21.5                5.6 +/-    2.96      11.8 +/-    2.96  0.070 / 0.160