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                5.5 +/-    1.10       9.0 +/-    1.10  0.030 / 0.040
G07     132.7          38.0                9.3 +/-    0.64      14.0 +/-    0.64  0.040 / 0.030
G11     62.1           37.6                4.7 +/-    0.67       7.1 +/-    0.67  0.060 / 0.090
G13     284.7          37.3                5.4 +/-    0.60       8.2 +/-    0.60  0.060 / 0.090
G15     308.1          13.9                4.3 +/-    2.29      10.9 +/-    2.29  0.060 / 0.050
G17     222.9          60.3                6.8 +/-    1.97       7.7 +/-    1.97  0.060 / 0.060
G19     219.3          35.5                7.8 +/-    1.54      12.2 +/-    1.54  0.030 / 0.060
G28     7.5            60.6                5.1 +/-    1.27       5.8 +/-    1.27  0.040 / 0.060
G30     126.7          64.4                7.4 +/-    0.27       8.2 +/-    0.27  0.050 / 0.080