PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-16:58:10
G10     257.1          33.5               11.6 +/-    2.02      18.9 +/-    2.02  0.110 / 0.000
G13     47.2           24.3                9.9 +/-    1.24      19.8 +/-    1.24  0.050 / 0.050
G15     70.7           53.8               12.1 +/-    0.38      14.7 +/-    0.38  0.060 / 0.060
G16     287.9          15.3                6.1 +/-    4.36      15.1 +/-    4.36  0.190 / 0.570
G20     283.1          56.9               13.3 +/-    0.95      15.6 +/-    0.95  0.170 / 0.530
G21     343.9          64.7               10.9 +/-    0.77      11.9 +/-    0.77  0.040 / 0.060
G26     261.7          12.5               10.4 +/-    1.47      27.5 +/-    1.47  0.050 / 0.070
G27     322.1          10.6              -14.4 +/-   15.51     -39.6 +/-   15.51  0.070 / 0.100
G29     165.7          43.2               14.3 +/-    1.15      19.7 +/-    1.15  0.070 / 0.110