PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-14:12:30
G07     18.6           67.4                8.4 +/-    0.88       9.0 +/-    0.88  0.080 / 0.110
G08     71.1           51.0                8.1 +/-    0.87      10.1 +/-    0.87  0.070 / 0.110
G09     181.9          56.1               10.2 +/-    0.71      12.1 +/-    0.71  0.090 / 0.180
G11     133.3          25.4                9.6 +/-    1.62      18.6 +/-    1.62  0.120 / 0.230
G23     158.7          22.0                9.3 +/-    1.69      19.5 +/-    1.69  0.030 / 0.040
G27     43.1           21.5                7.7 +/-    2.39      16.3 +/-    2.39  0.030 / 0.040
G28     250.3          37.4               10.3 +/-    1.76      15.6 +/-    1.76  0.200 / 0.250
G30     318.8          50.1                8.4 +/-    0.51      10.5 +/-    0.51  0.220 / 0.180