PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/25-19:57:30
G03     185.3          10.5                9.4 +/-    3.14      26.1 +/-    3.14  0.110 / 0.080
G07     305.2          47.2               10.9 +/-    2.57      14.2 +/-    2.57  0.110 / 0.140
G08     130.2          37.3               12.3 +/-    0.88      18.8 +/-    0.88  0.070 / 0.070
G09     314.2          73.7               10.0 +/-    0.67      10.4 +/-    0.67  0.060 / 0.070
G16     41.9           33.0                8.3 +/-    1.27      13.7 +/-    1.27  0.040 / 0.030
G23     139.2          70.7               11.3 +/-    0.64      11.9 +/-    0.64  0.040 / 0.030
G27     89.0           37.3               10.6 +/-    1.05      16.1 +/-    1.05  0.050 / 0.080
G30     282.0          19.1               10.5 +/-    2.11      23.6 +/-    2.11  0.050 / 0.080