PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/15-16:43:10
G10     258.7          33.3                8.2 +/-    2.31      13.4 +/-    2.31  0.040 / 0.030
G13     46.4           24.0                7.9 +/-    1.56      15.8 +/-    1.56  0.050 / 0.030
G15     72.9           56.0                9.1 +/-    0.59      10.7 +/-    0.59  0.120 / 0.140
G16     287.6          14.3                6.6 +/-    1.04      16.6 +/-    1.04  0.080 / 0.140
G20     283.1          56.2                8.8 +/-    2.30      10.3 +/-    2.30  0.110 / 0.240
G21     350.7          67.5                9.0 +/-    0.84       9.7 +/-    0.84  0.180 / 0.270
G24     123.3          10.0              -11.6 +/-   30.06     -32.3 +/-   30.06  0.250 / 0.480
G26     261.3          11.7                5.2 +/-   23.67      14.0 +/-   23.67  0.030 / 0.030
G29     166.0          39.4                9.8 +/-    0.95      14.4 +/-    0.95  0.030 / 0.030