PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-04:43:00
G02     49.8           40.3              -17.0 +/-    1.15     -24.6 +/-    1.15  0.250 / 0.360
G05     84.4           68.3                4.3 +/-    0.49       4.6 +/-    0.49  0.300 / 0.520
G12     189.8          49.0                5.4 +/-    0.78       7.0 +/-    0.78  0.040 / 0.040
G21     262.5          11.8                2.1 +/-   11.16       5.7 +/-   11.16  0.030 / 0.060
G25     256.6          58.6                3.5 +/-    1.43       4.1 +/-    1.43  0.040 / 0.050
G29     324.3          48.4                2.2 +/-    0.86       2.8 +/-    0.86  0.040 / 0.040