PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-23:42:50
G02     215.2          60.6               13.5 +/-    0.63      15.2 +/-    0.63  0.050 / 0.090
G06     59.0           74.6               11.2 +/-    0.53      11.5 +/-    0.53  0.040 / 0.090
G12     318.4          35.6               10.5 +/-    1.76      16.5 +/-    1.76  0.070 / 0.080
G17     54.5           36.0                9.1 +/-    1.29      14.1 +/-    1.29  0.070 / 0.090
G19     37.4           50.5                9.4 +/-    0.44      11.8 +/-    0.44  0.170 / 0.410
G24     266.2          41.7               11.7 +/-    1.28      16.5 +/-    1.28  0.140 / 0.400
G28     122.4          13.8               14.2 +/-    1.77      36.3 +/-    1.77  0.030 / 0.060