PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/14-04:42:40
G10     266.3          38.8                9.3 +/-    1.78      13.9 +/-    1.78  0.110 / 0.160
G13     42.0           18.2                5.3 +/-    1.68      12.1 +/-    1.68  0.080 / 0.180
G15     59.1           48.3                6.7 +/-    0.44       8.6 +/-    0.44  0.040 / 0.040
G16     282.9          12.3                9.4 +/-    2.56      24.9 +/-    2.56  0.040 / 0.050
G20     296.2          59.9                8.3 +/-    0.67       9.4 +/-    0.67  0.060 / 0.080
G21     3.8            71.5                8.0 +/-    1.07       8.3 +/-    1.07  0.080 / 0.070
G24     120.9          13.7                8.9 +/-    5.32      22.9 +/-    5.32  0.150 / 0.330
G27     319.7          16.9                5.0 +/-    3.09      11.8 +/-    3.09  0.250 / 0.410
G29     165.6          29.4                9.0 +/-    1.48      15.9 +/-    1.48  0.080 / 0.250