PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-23:12:30
G02     214.7          59.8               14.4 +/-    0.61      16.3 +/-    0.61  0.090 / 0.080
G06     60.4           74.9               12.6 +/-    0.51      13.0 +/-    0.51  0.080 / 0.110
G12     318.3          35.3               10.9 +/-    2.49      17.3 +/-    2.49  0.050 / 0.070
G17     54.2           36.1               11.4 +/-    1.15      17.8 +/-    1.15  0.050 / 0.080
G19     36.4           51.0               12.3 +/-    1.77      15.3 +/-    1.77  0.020 / 0.020
G24     266.9          41.9               12.7 +/-    2.61      18.0 +/-    2.61  0.030 / 0.020
G28     121.9          14.3               16.7 +/-    2.18      42.3 +/-    2.18  0.150 / 0.390