PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-22:43:10
G02     64.7           29.0               12.2 +/-    1.93      21.8 +/-    1.93  0.030 / 0.040
G05     50.5           54.4               10.9 +/-    0.61      13.1 +/-    0.61  0.030 / 0.040
G12     181.4          23.1               14.0 +/-    1.02      28.7 +/-    1.02  0.160 / 0.360
G13     122.2          20.0               15.2 +/-    1.93      33.5 +/-    1.93  0.170 / 0.330
G15     161.6          16.9               14.8 +/-    2.84      35.2 +/-    2.84  0.080 / 0.240
G21     276.7          20.8               11.0 +/-    2.15      23.7 +/-    2.15  0.120 / 0.290
G25     227.1          46.4               11.9 +/-    3.08      15.7 +/-    3.08  0.080 / 0.110
G29     331.9          60.3               11.8 +/-    0.54      13.4 +/-    0.54  0.120 / 0.140