PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-21:42:50
G02     213.5          57.2               14.7 +/-    0.86      17.2 +/-    0.86  0.050 / 0.110
G06     65.3           75.9               12.5 +/-    0.93      12.9 +/-    0.93  0.040 / 0.110
G12     317.9          34.3                9.9 +/-    0.62      15.9 +/-    0.62  0.070 / 0.110
G17     53.3           36.4               10.8 +/-    1.04      16.7 +/-    1.04  0.070 / 0.080
G19     33.4           52.6               11.6 +/-    0.46      14.1 +/-    0.46  0.030 / 0.060
G24     269.1          42.2               11.2 +/-    0.81      15.7 +/-    0.81  0.030 / 0.050
G28     120.6          15.8               12.5 +/-    1.84      30.4 +/-    1.84  0.040 / 0.070