PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/22-19:57:40
G02     10.1           70.3                8.2 +/-    0.55       8.7 +/-    0.55  0.030 / 0.070
G05     157.7          46.0               12.6 +/-    0.84      16.8 +/-    0.84  0.050 / 0.070
G06     46.2           27.5                6.9 +/-    0.38      12.8 +/-    0.38  0.030 / 0.030
G12     241.5          81.1                7.9 +/-    0.82       8.0 +/-    0.82  0.040 / 0.040
G19     84.7           22.4                8.0 +/-    1.17      16.5 +/-    1.17  0.050 / 0.110
G24     218.3          13.7               14.4 +/-    2.33      36.8 +/-    2.33  0.050 / 0.110
G25     313.0          40.5                7.9 +/-    2.01      11.5 +/-    2.01  0.040 / 0.040
G29     294.7          15.2                9.4 +/-    1.55      23.3 +/-    1.55  0.040 / 0.050