PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/27-11:42:50
G02     219.6          61.3                4.4 +/-    0.47       5.0 +/-    0.47  0.060 / 0.090
G06     50.8           71.3                4.3 +/-    0.60       4.5 +/-    0.60  0.060 / 0.080
G12     319.8          40.4                4.0 +/-    0.76       5.7 +/-    0.76  0.050 / 0.070
G17     61.3           28.3                1.5 +/-    0.53       2.8 +/-    0.53  0.040 / 0.070
G19     39.2           49.7                3.0 +/-    1.08       3.8 +/-    1.08  0.030 / 0.030
G24     256.1          41.1                4.9 +/-    1.47       7.0 +/-    1.47  0.030 / 0.030
G28     124.4          12.4                3.8 +/-    2.51      10.2 +/-    2.51  0.040 / 0.040