PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/31-03:28:00
G10     263.7          37.3                8.7 +/-    0.64      13.3 +/-    0.64  0.130 / 0.440
G13     43.2           19.9                6.1 +/-    1.37      13.5 +/-    1.37  0.130 / 0.370
G15     61.9           50.1                6.7 +/-    0.41       8.5 +/-    0.41  0.040 / 0.050
G16     284.5          13.1                7.1 +/-    1.23      18.5 +/-    1.23  0.050 / 0.040
G20     291.6          58.7                8.0 +/-    0.71       9.1 +/-    0.71  0.080 / 0.240
G21     356.9          69.7               -4.3 +/-    0.81      -4.6 +/-    0.81  0.100 / 0.260
G24     123.2          12.3                5.2 +/-    2.18      13.9 +/-    2.18  0.070 / 0.080
G27     320.6          15.1                4.5 +/-    1.66      11.1 +/-    1.66  0.080 / 0.100
G29     165.6          32.6                9.4 +/-    0.96      15.6 +/-    0.96  0.030 / 0.050