PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/16-20:58:00
G02     30.6           57.4               12.0 +/-    0.50      14.0 +/-    0.50  0.030 / 0.050
G05     140.5          61.4               16.2 +/-    0.96      18.2 +/-    0.96  0.030 / 0.050
G06     53.7           15.1                9.0 +/-    3.00      22.4 +/-    3.00  0.040 / 0.070
G12     193.2          66.8               14.0 +/-    0.97      15.1 +/-    0.97  0.040 / 0.070
G19     98.3           12.7               11.8 +/-    1.02      30.9 +/-    1.02  0.160 / 0.270
G25     298.1          53.1               12.0 +/-    0.57      14.6 +/-    0.57  0.170 / 0.300
G29     306.0          26.1               10.1 +/-    2.27      19.3 +/-    2.27  0.030 / 0.050