PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-23:12:30
G02     335.9          79.6               11.1 +/-    0.41      11.3 +/-    0.41  0.070 / 0.170
G05     164.3          31.8               18.1 +/-    1.18      30.6 +/-    1.18  0.080 / 0.180
G06     40.1           44.3                9.9 +/-    0.66      13.5 +/-    0.66  0.100 / 0.230
G12     315.5          65.9                9.8 +/-    1.03      10.6 +/-    1.03  0.140 / 0.220
G17     83.8           12.7               11.2 +/-    1.60      29.3 +/-    1.60  0.020 / 0.050
G19     72.8           28.0               10.3 +/-    0.85      18.9 +/-    0.85  0.030 / 0.050
G24     229.5          24.1               16.3 +/-    1.66      32.6 +/-    1.66  0.040 / 0.030
G25     317.2          26.8                8.5 +/-    2.29      16.0 +/-    2.29  0.050 / 0.040