PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-09:27:50
G02     241.1          76.7                6.0 +/-    0.56       6.1 +/-    0.56  0.090 / 0.250
G05     174.3          13.0                4.8 +/-    1.89      12.6 +/-    1.89  0.060 / 0.240
G06     40.8           59.0                5.1 +/-    0.73       5.8 +/-    0.73  0.040 / 0.050
G12     322.1          53.9                5.4 +/-    0.93       6.5 +/-    0.93  0.040 / 0.050
G17     69.4           22.6                0.5 +/-    0.95       1.0 +/-    0.95  0.030 / 0.040
G19     56.8           37.4                3.7 +/-    0.62       5.7 +/-    0.62  0.030 / 0.030
G24     248.2          35.3                5.9 +/-    1.32       9.3 +/-    1.32  0.070 / 0.080
G25     315.9          10.8              -11.4 +/-   29.30     -31.2 +/-   29.30  0.080 / 0.070