PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/04-16:43:00
G01     224.4          15.7                7.6 +/-   13.61      18.6 +/-   13.61  0.110 / 0.210
G03     275.4          70.9               26.7 +/-    0.31      28.0 +/-    0.31  0.100 / 0.240
G14     88.6           22.1                8.0 +/-    1.62      16.8 +/-    1.62  0.030 / 0.040
G16     150.9          44.1               11.1 +/-    1.65      15.2 +/-    1.65  0.030 / 0.040
G22     205.0          67.4                9.5 +/-    0.38      10.2 +/-    0.38  0.440 / 0.280
G23     308.2          37.8                7.2 +/-    1.99      10.8 +/-    1.99  0.180 / 0.260
G26     102.1          55.9                9.1 +/-    1.12      10.8 +/-    1.12  0.040 / 0.060
G31     45.4           32.9                7.3 +/-    1.67      12.0 +/-    1.67  0.040 / 0.070