PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-01:57:30
G02     200.7          28.9                8.4 +/-    2.22      15.1 +/-    2.22  0.090 / 0.080
G06     169.2          60.3                7.0 +/-    0.43       7.9 +/-    0.43  0.060 / 0.080
G17     25.5           57.0                5.1 +/-    0.90       5.9 +/-    0.90  0.030 / 0.040
G19     342.9          69.0                4.3 +/-    0.55       4.5 +/-    0.55  0.040 / 0.030
G24     305.6          33.5                3.4 +/-    1.89       5.5 +/-    1.89  0.050 / 0.050
G28     95.5           35.4                6.1 +/-    0.83       9.6 +/-    0.83  0.030 / 0.060