PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-00:57:50
G01     79.6           33.3                7.1 +/-    0.50      11.6 +/-    0.50  0.050 / 0.050
G07     132.7          38.0                9.1 +/-    0.95      13.7 +/-    0.95  0.040 / 0.050
G11     62.1           37.6                5.5 +/-    0.37       8.3 +/-    0.37  0.030 / 0.050
G13     284.7          37.3                7.5 +/-    0.84      11.4 +/-    0.84  0.020 / 0.040
G15     308.1          13.9                4.9 +/-    2.25      12.5 +/-    2.25  0.060 / 0.100
G17     222.9          60.3                8.8 +/-    1.75       9.9 +/-    1.75  0.060 / 0.110
G19     219.3          35.5                9.3 +/-    1.33      14.7 +/-    1.33  0.030 / 0.070
G28     7.5            60.6                5.3 +/-    0.47       6.0 +/-    0.47  0.050 / 0.060
G30     126.7          64.4                8.0 +/-    0.81       8.8 +/-    0.81  0.040 / 0.100