PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-08:57:40
G02     225.5          68.0                5.5 +/-    0.83       5.9 +/-    0.83  0.050 / 0.050
G06     44.9           68.1                4.1 +/-    0.56       4.3 +/-    0.56  0.040 / 0.040
G12     320.5          43.5                4.8 +/-    0.52       6.6 +/-    0.52  0.040 / 0.040
G17     65.6           24.8                5.2 +/-    2.44      10.2 +/-    2.44  0.040 / 0.050
G19     46.3           45.6                4.8 +/-    0.81       6.5 +/-    0.81  0.160 / 0.280
G24     248.3          38.9                5.4 +/-    2.14       8.0 +/-    2.14  0.200 / 0.260
G25     315.0          11.0              -11.4 +/-   25.33     -31.2 +/-   25.33  0.060 / 0.110