PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-17:58:00
G02     213.1          54.8               10.3 +/-    0.86      12.3 +/-    0.86  0.080 / 0.200
G06     72.7           77.6                8.7 +/-    0.38       8.9 +/-    0.38  0.080 / 0.200
G12     316.1          30.6                9.2 +/-    1.96      15.8 +/-    1.96  0.050 / 0.060
G17     51.8           37.0                7.2 +/-    1.46      11.0 +/-    1.46  0.050 / 0.050
G19     35.3           51.0                8.0 +/-    1.50      10.0 +/-    1.50  0.090 / 0.100
G24     271.5          41.9               24.3 +/-    2.42      34.3 +/-    2.42  0.130 / 0.100
G28     117.7          22.0                9.1 +/-    1.23      19.1 +/-    1.23  0.040 / 0.080