PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-23:12:30
G10     301.2          53.7                8.6 +/-    1.66      10.4 +/-    1.66  0.140 / 0.410
G14     210.4          11.6                2.1 +/-   33.25       5.7 +/-   33.25  0.150 / 0.610
G15     45.9           27.0                5.5 +/-    1.86      10.2 +/-    1.86  0.060 / 0.080
G20     356.5          65.1                8.5 +/-    0.77       9.3 +/-    0.77  0.060 / 0.090
G21     98.8           74.0                8.0 +/-    0.49       8.3 +/-    0.49  0.050 / 0.050
G24     97.3           27.2               10.5 +/-    1.13      19.5 +/-    1.13  0.050 / 0.050
G27     299.6          34.8                9.2 +/-    0.62      14.7 +/-    0.62  0.040 / 0.040
G32     210.8          33.0               10.1 +/-    2.26      16.7 +/-    2.26  0.040 / 0.040