PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/02-08:12:30
G02     203.4          33.5                8.6 +/-    1.58      14.0 +/-    1.58  0.120 / 0.340
G06     162.2          68.1                7.1 +/-    1.02       7.5 +/-    1.02  0.150 / 0.440
G12     307.1          15.0                2.7 +/-    2.10       6.8 +/-    2.10  0.070 / 0.080
G17     38.0           47.2                3.8 +/-    0.59       4.9 +/-    0.59  0.070 / 0.090
G19     353.9          66.4                3.2 +/-    0.57       3.5 +/-    0.57  0.080 / 0.120
G24     293.8          41.2                5.5 +/-    1.15       7.9 +/-    1.15  0.090 / 0.110
G28     101.1          33.1                7.5 +/-    0.86      12.4 +/-    0.86  0.030 / 0.040