PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/16-22:58:10
G02     203.2          36.4               11.1 +/-    1.59      17.2 +/-    1.59  0.070 / 0.080
G06     165.1          68.0               10.9 +/-    0.53      11.7 +/-    0.53  0.060 / 0.080
G12     306.9          13.7                8.7 +/-    2.10      22.3 +/-    2.10  0.050 / 0.110
G17     37.6           47.6                9.9 +/-    1.60      12.9 +/-    1.60  0.050 / 0.110
G19     3.6            64.6                9.2 +/-    0.91      10.1 +/-    0.91  0.160 / 0.240
G24     295.4          39.4                9.1 +/-    4.65      13.3 +/-    4.65  0.120 / 0.260
G28     101.2          34.2               11.5 +/-    1.01      18.5 +/-    1.01  0.040 / 0.060