PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/27-01:28:00
G02     31.6           56.3               10.0 +/-    0.64      11.8 +/-    0.64  0.050 / 0.070
G05     140.3          60.6               12.6 +/-    1.05      14.2 +/-    1.05  0.050 / 0.060
G06     51.4           19.8                7.6 +/-    0.97      16.8 +/-    0.97  0.030 / 0.040
G12     209.7          72.2               12.6 +/-    0.61      13.2 +/-    0.61  0.030 / 0.040
G19     98.0           10.6               10.8 +/-    1.77      29.7 +/-    1.77  0.040 / 0.040
G25     299.5          52.5               10.7 +/-    0.68      13.0 +/-    0.68  0.030 / 0.050
G29     307.5          29.8               10.0 +/-    1.11      17.5 +/-    1.11  0.080 / 0.180