PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-23:28:00
G02     333.2          80.0               10.2 +/-    0.44      10.3 +/-    0.44  0.080 / 0.140
G05     164.6          31.2               16.5 +/-    1.28      28.2 +/-    1.28  0.070 / 0.170
G06     40.0           45.1                9.5 +/-    0.41      12.8 +/-    0.41  0.040 / 0.040
G12     316.1          65.3                8.4 +/-    1.06       9.1 +/-    1.06  0.040 / 0.040
G17     83.4           12.9               13.8 +/-    2.66      36.0 +/-    2.66  0.050 / 0.050
G19     72.2           28.4               11.6 +/-    1.19      21.0 +/-    1.19  0.050 / 0.050
G24     229.9          24.5               12.7 +/-    1.55      25.1 +/-    1.55  0.030 / 0.040
G25     317.3          26.4                8.4 +/-    1.98      15.8 +/-    1.98  0.030 / 0.040