PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/05-15:58:00
G02     255.4          76.8                7.1 +/-    0.48       7.3 +/-    0.48  0.180 / 0.150
G05     170.3          20.7                9.0 +/-    1.99      19.4 +/-    1.99  0.150 / 0.190
G06     40.5           49.9                8.6 +/-    0.59      10.9 +/-    0.59  0.040 / 0.030
G12     322.4          63.9                7.8 +/-    0.73       8.6 +/-    0.73  0.030 / 0.040
G17     76.7           16.8                7.6 +/-    1.45      18.1 +/-    1.45  0.120 / 0.210
G19     60.0           38.3                8.7 +/-    1.59      13.0 +/-    1.59  0.170 / 0.250
G24     237.0          31.0                8.3 +/-    1.74      14.3 +/-    1.74  0.080 / 0.110
G25     317.4          18.4                5.9 +/-    2.70      13.4 +/-    2.70  0.090 / 0.130