PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-14:42:40
G02     72.4           21.9                6.4 +/-    1.11      13.4 +/-    1.11  0.040 / 0.040
G05     46.3           50.6                6.6 +/-    0.63       8.2 +/-    0.63  0.030 / 0.040
G12     179.2          15.3                7.6 +/-    1.65      18.7 +/-    1.65  0.160 / 0.340
G13     112.8          25.0               11.5 +/-    3.31      22.4 +/-    3.31  0.180 / 0.260
G15     153.4          26.4               10.3 +/-    3.53      19.4 +/-    3.53  0.090 / 0.270
G20     226.5          13.1                4.4 +/-    5.61      11.5 +/-    5.61  0.110 / 0.180
G21     284.8          26.5                6.4 +/-    2.06      12.1 +/-    2.06  0.040 / 0.030
G25     219.5          39.5                7.9 +/-    1.58      11.6 +/-    1.58  0.030 / 0.030
G26     317.0          11.9                1.8 +/-   19.98       4.9 +/-   19.98  0.090 / 0.090
G29     339.4          69.3                6.5 +/-    0.57       6.9 +/-    0.57  0.070 / 0.080