PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/29-08:12:30
G10     250.1          26.0                6.5 +/-    1.87      12.4 +/-    1.87  0.200 / 0.700
G13     54.4           30.7                4.9 +/-    1.70       8.4 +/-    1.70  0.200 / 0.520
G15     85.5           56.9                6.7 +/-    0.60       7.8 +/-    0.60  0.040 / 0.040
G16     296.4          15.3                1.8 +/-    2.66       4.5 +/-    2.66  0.040 / 0.050
G20     20.5           65.3                4.1 +/-    0.67       4.5 +/-    0.67  0.050 / 0.040
G21     334.1          60.4                4.3 +/-    0.73       4.8 +/-    0.73  0.040 / 0.040
G26     267.5          15.8                6.1 +/-    2.36      14.8 +/-    2.36  0.170 / 0.190
G29     164.5          50.0                8.6 +/-    0.50      10.8 +/-    0.50  0.110 / 0.130