PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/08-05:42:40
G02     50.7           39.5                4.0 +/-    1.51       5.9 +/-    1.51  0.180 / 0.260
G05     81.4           68.0                5.3 +/-    0.49       5.7 +/-    0.49  0.230 / 0.370
G12     189.3          47.6                7.5 +/-    0.66       9.8 +/-    0.66  0.050 / 0.050
G21     263.6          13.2                1.9 +/-   14.67       4.9 +/-   14.67  0.050 / 0.060
G25     253.1          58.3                6.1 +/-    0.82       7.0 +/-    0.82  0.050 / 0.040
G29     324.6          48.7                3.7 +/-    0.80       4.7 +/-    0.80  0.060 / 0.050