PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-00:42:30
G02     203.4          37.3                9.5 +/-    0.89      14.4 +/-    0.89  0.100 / 0.110
G06     167.3          67.8                8.8 +/-    0.43       9.4 +/-    0.43  0.070 / 0.070
G12     307.3          14.4                5.5 +/-    3.08      13.8 +/-    3.08  0.080 / 0.130
G17     38.9           46.5                7.3 +/-    0.98       9.6 +/-    0.98  0.070 / 0.120
G19     4.2            64.3                8.0 +/-    0.66       8.8 +/-    0.66  0.040 / 0.040
G24     294.0          40.1               11.1 +/-    6.60      16.2 +/-    6.60  0.040 / 0.040
G28     102.2          33.3                9.3 +/-    0.96      15.2 +/-    0.96  0.210 / 0.260