PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-13:57:50
G02     205.7          36.1                8.5 +/-    1.08      13.2 +/-    1.08  0.080 / 0.130
G06     146.9          73.8                9.0 +/-    0.41       9.4 +/-    0.41  0.070 / 0.070
G12     309.3          18.7                5.6 +/-    2.52      12.8 +/-    2.52  0.050 / 0.040
G17     37.1           48.4                7.5 +/-    1.48       9.6 +/-    1.48  0.050 / 0.050
G19     13.3           61.6                7.5 +/-    0.72       8.4 +/-    0.72  0.060 / 0.040
G24     293.5          39.1                5.4 +/-    1.28       7.9 +/-    1.28  0.040 / 0.040
G28     103.3          34.1                8.7 +/-    1.11      14.1 +/-    1.11  0.060 / 0.100