PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/29-21:57:30
G10     256.2          31.3               13.7 +/-    1.36      23.3 +/-    1.36  0.040 / 0.040
G13     48.2           25.8               11.0 +/-    2.38      21.1 +/-    2.38  0.040 / 0.040
G15     80.0           58.3               11.2 +/-    0.72      12.9 +/-    0.72  0.140 / 0.470
G16     287.6          15.3                9.5 +/-    3.26      23.4 +/-    3.26  0.120 / 0.490
G20     257.3          18.4               13.7 +/-    3.19      31.3 +/-    3.19  0.110 / 0.260
G21     340.3          63.8               11.2 +/-    0.73      12.3 +/-    0.73  0.160 / 0.160
G26     260.4          13.0               11.7 +/-    2.39      30.5 +/-    2.39  0.030 / 0.040
G29     166.7          44.2               13.6 +/-    0.64      18.6 +/-    0.64  0.030 / 0.040