PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/18-01:57:50
G02     202.5          36.4                9.5 +/-    0.96      14.6 +/-    0.96  0.190 / 0.280
G06     162.2          68.5                8.9 +/-    0.46       9.4 +/-    0.46  0.100 / 0.290
G12     307.4          14.4                5.0 +/-    1.64      12.7 +/-    1.64  0.030 / 0.040
G17     33.1           51.7                6.5 +/-    1.36       8.0 +/-    1.36  0.030 / 0.040
G19     1.0            65.3                6.0 +/-    0.47       6.5 +/-    0.47  0.030 / 0.020
G24     298.5          37.7                5.5 +/-    2.96       8.3 +/-    2.96  0.030 / 0.020
G28     102.9          30.7                6.8 +/-    0.81      11.7 +/-    0.81  0.070 / 0.110