PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/14-15:42:50
G02     217.9          59.0                9.1 +/-    0.65      10.5 +/-    0.65  0.040 / 0.100
G06     54.1           72.5                9.6 +/-    0.56      10.1 +/-    0.56  0.030 / 0.080
G12     318.3          36.7                6.2 +/-    1.06       9.5 +/-    1.06  0.120 / 0.380
G17     55.8           34.5                6.5 +/-    0.47      10.4 +/-    0.47  0.120 / 0.390
G19     42.2           46.9                8.5 +/-    0.66      11.1 +/-    0.66  0.040 / 0.070
G24     264.5          40.8                9.0 +/-    1.30      13.0 +/-    1.30  0.040 / 0.050
G28     121.7          18.4                8.2 +/-    1.64      18.6 +/-    1.64  0.080 / 0.100