PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-01:12:30
G02     201.6          30.3                9.6 +/-    1.38      16.7 +/-    1.38  0.080 / 0.110
G06     173.1          59.7                8.7 +/-    0.68       9.9 +/-    0.68  0.080 / 0.110
G17     33.0           51.4                7.5 +/-    1.30       9.3 +/-    1.30  0.060 / 0.080
G19     348.0          68.1                7.2 +/-    0.86       7.7 +/-    0.86  0.060 / 0.090
G24     301.1          37.0                8.1 +/-    1.16      12.4 +/-    1.16  0.040 / 0.030
G28     95.3           37.5                9.4 +/-    1.46      14.3 +/-    1.46  0.040 / 0.030