PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-03:58:00
G01     80.2           31.9                6.1 +/-    0.86      10.2 +/-    0.86  0.040 / 0.040
G07     130.2          40.6                7.1 +/-    0.94      10.2 +/-    0.94  0.040 / 0.030
G11     64.9           41.0                5.4 +/-    0.77       7.8 +/-    0.77  0.030 / 0.070
G13     285.9          38.8                6.6 +/-    1.07       9.8 +/-    1.07  0.030 / 0.080
G15     308.3          14.2                2.3 +/-    3.10       5.9 +/-    3.10  0.070 / 0.110
G17     217.8          60.5                9.0 +/-    0.73      10.2 +/-    0.73  0.070 / 0.110
G19     216.3          35.0                9.4 +/-    1.93      14.8 +/-    1.93  0.040 / 0.080
G28     341.4          61.3                5.7 +/-    0.63       6.4 +/-    0.63  0.040 / 0.080
G30     117.6          75.9                7.2 +/-    0.65       7.4 +/-    0.65  0.050 / 0.050