PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/08-16:57:30
G03     228.8          67.9                9.1 +/-    0.56       9.8 +/-    0.56  0.080 / 0.230
G07     248.9          11.3               -0.1 +/-   21.63      -0.3 +/-   21.63  0.130 / 0.190
G09     303.4          18.0                9.0 +/-    3.04      20.9 +/-    3.04  0.040 / 0.040
G14     100.2          13.2                7.8 +/-    2.19      20.1 +/-    2.19  0.040 / 0.030
G16     136.0          57.5               10.3 +/-    1.33      11.9 +/-    1.33  0.100 / 0.130
G22     191.4          52.8               10.8 +/-    0.64      13.2 +/-    0.64  0.130 / 0.130
G23     318.7          48.4                8.0 +/-    0.50      10.2 +/-    0.50  0.140 / 0.390
G26     74.4           54.7                8.4 +/-    1.02      10.1 +/-    1.02  0.130 / 0.350
G31     51.9           21.4                6.7 +/-    2.53      14.3 +/-    2.53  0.040 / 0.040