PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/03-18:57:50
G02     81.6           16.6                9.4 +/-    1.70      22.6 +/-    1.70  0.110 / 0.130
G05     44.4           35.0                9.6 +/-    0.99      15.3 +/-    0.99  0.090 / 0.130
G13     98.7           31.9               11.9 +/-    0.66      20.1 +/-    0.66  0.080 / 0.140
G15     147.0          36.9               12.5 +/-    2.68      19.2 +/-    2.68  0.080 / 0.140
G20     233.8          22.6               11.6 +/-    1.30      24.0 +/-    1.30  0.080 / 0.080
G21     295.8          34.1                7.8 +/-    1.48      12.6 +/-    1.48  0.040 / 0.080
G25     210.5          27.8               11.4 +/-    1.53      20.9 +/-    1.53  0.040 / 0.070
G26     306.4          17.7                7.7 +/-    0.99      18.0 +/-    0.99  0.040 / 0.060
G29     7.9            83.8               11.2 +/-    0.83      11.3 +/-    0.83  0.120 / 0.210