PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-10:27:20
G08     307.9          20.2                2.2 +/-    2.02       4.8 +/-    2.02  0.040 / 0.040
G10     335.7          60.6                3.7 +/-    0.75       4.2 +/-    0.75  0.040 / 0.050
G14     218.2          32.6                4.5 +/-    1.35       7.5 +/-    1.35  0.040 / 0.020
G20     39.9           59.8                3.3 +/-    0.43       3.7 +/-    0.43  0.030 / 0.030
G21     135.3          52.7                8.2 +/-    0.57      10.0 +/-    0.57  0.070 / 0.080
G24     70.9           29.0                4.4 +/-    0.49       7.9 +/-    0.49  0.080 / 0.080
G27     276.2          36.9                4.7 +/-    3.04       7.2 +/-    3.04  0.080 / 0.110
G32     223.7          48.7                4.8 +/-    2.27       6.2 +/-    2.27  0.110 / 0.090