PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-00:58:10
G02     201.4          31.7               11.4 +/-    2.35      19.3 +/-    2.35  0.130 / 0.330
G06     166.0          64.0               12.0 +/-    1.00      13.2 +/-    1.00  0.130 / 0.370
G12     304.9          11.3               -0.7 +/-   20.42      -1.9 +/-   20.42  0.030 / 0.050
G17     27.6           55.5                6.8 +/-    0.80       8.1 +/-    0.80  0.020 / 0.050
G19     349.8          67.8                7.2 +/-    0.67       7.7 +/-    0.67  0.040 / 0.040
G24     302.8          35.4                7.6 +/-    1.20      11.9 +/-    1.20  0.030 / 0.040
G28     98.4           33.6                8.1 +/-    0.74      13.1 +/-    0.74  0.060 / 0.130