PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-22:57:40
G02     71.2           23.9               10.2 +/-    1.42      20.5 +/-    1.42  0.040 / 0.040
G05     46.2           46.7                8.6 +/-    0.75      11.3 +/-    0.75  0.040 / 0.040
G12     179.8          15.3               12.9 +/-    1.06      31.9 +/-    1.06  0.090 / 0.240
G13     115.1          25.1               12.5 +/-    1.40      24.4 +/-    1.40  0.150 / 0.160
G15     157.2          23.7               12.6 +/-    1.61      25.5 +/-    1.61  0.080 / 0.100
G21     283.4          25.7               10.9 +/-    1.38      21.0 +/-    1.38  0.080 / 0.090
G25     219.3          39.5               12.7 +/-    1.56      18.6 +/-    1.56  0.080 / 0.170
G26     316.7          12.9               11.3 +/-    3.85      29.5 +/-    3.85  0.100 / 0.180
G29     337.4          68.6               11.4 +/-    0.49      12.2 +/-    0.49  0.150 / 0.230