PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-15:58:00
G02     5.6            71.2                4.6 +/-    0.38       4.9 +/-    0.38  0.120 / 0.400
G05     160.7          44.9                6.6 +/-    1.02       8.9 +/-    1.02  0.110 / 0.480
G06     46.2           27.6                2.7 +/-    2.35       5.0 +/-    2.35  0.030 / 0.020
G12     238.9          80.8                4.5 +/-    0.71       4.6 +/-    0.71  0.030 / 0.020
G19     84.6           23.2                5.3 +/-    2.41      10.9 +/-    2.41  0.040 / 0.050
G24     216.6          12.8                5.4 +/-    1.82      14.3 +/-    1.82  0.030 / 0.040
G25     311.8          43.0                3.9 +/-    1.43       5.4 +/-    1.43  0.050 / 0.060
G29     295.4          16.2                5.5 +/-    1.81      13.3 +/-    1.81  0.040 / 0.070