PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-19:12:30
G02     213.0          54.5               15.9 +/-    0.90      19.0 +/-    0.90  0.110 / 0.310
G03     40.0           5.2                10.5 +/-    1.81      31.7 +/-    1.81  0.170 / 0.520
G06     68.5           76.3               14.0 +/-    0.24      14.4 +/-    0.24  0.050 / 0.050
G12     317.9          34.7               11.9 +/-    1.53      19.0 +/-    1.53  0.040 / 0.050
G17     53.4           35.7               11.7 +/-    0.96      18.3 +/-    0.96  0.030 / 0.030
G19     30.6           54.0               12.7 +/-    1.49      15.3 +/-    1.49  0.030 / 0.030
G24     270.0          42.6               14.4 +/-    2.62      20.1 +/-    2.62  0.040 / 0.050
G28     119.6          16.9               14.4 +/-    1.24      34.1 +/-    1.24  0.040 / 0.050