PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-23:28:10
G02     204.0          39.0               12.2 +/-    1.12      18.0 +/-    1.12  0.070 / 0.110
G06     162.8          70.4               11.5 +/-    0.38      12.2 +/-    0.38  0.070 / 0.120
G12     308.2          15.6                6.3 +/-    2.33      15.4 +/-    2.33  0.070 / 0.110
G17     39.9           45.7                8.6 +/-    0.69      11.5 +/-    0.69  0.080 / 0.090
G19     8.3            63.1                9.2 +/-    0.40      10.2 +/-    0.40  0.100 / 0.240
G24     292.3          40.5               14.5 +/-    8.38      20.9 +/-    8.38  0.110 / 0.310
G28     103.7          32.5               11.3 +/-    0.77      18.8 +/-    0.77  0.040 / 0.040