PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/12-03:43:00
G02     231.2          73.8                4.6 +/-    0.30       4.8 +/-    0.30  0.160 / 0.210
G05     172.6          13.0                3.8 +/-    4.08      10.0 +/-    4.08  0.220 / 0.180
G06     42.5           64.7                2.7 +/-    0.56       3.0 +/-    0.56  0.040 / 0.050
G12     321.0          46.1                3.9 +/-    1.03       5.2 +/-    1.03  0.030 / 0.050
G17     65.9           27.3                1.0 +/-    2.16       1.8 +/-    2.16  0.030 / 0.020
G19     52.4           41.6                2.3 +/-    2.00       3.2 +/-    2.00  0.040 / 0.040
G24     251.2          37.3                4.3 +/-    1.14       6.6 +/-    1.14  0.060 / 0.110