PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/12-12:43:10
G10     293.0          50.0                4.3 +/-    3.01       5.5 +/-    3.01  0.060 / 0.080
G15     46.3           29.1                2.4 +/-    0.75       4.2 +/-    0.75  0.060 / 0.080
G20     67.4           24.6                3.2 +/-    1.28       6.3 +/-    1.28  0.040 / 0.040
G21     92.7           73.5                3.5 +/-    0.64       3.6 +/-    0.64  0.040 / 0.040
G24     101.3          25.4                5.2 +/-    2.07      10.1 +/-    2.07  0.090 / 0.120
G27     302.3          33.6                3.8 +/-    3.16       6.3 +/-    3.16  0.070 / 0.120
G32     209.6          29.9                6.2 +/-    2.06      10.8 +/-    2.06  0.140 / 0.090