PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/20-02:13:00
G02     232.7          73.3                4.9 +/-    0.60       5.1 +/-    0.60  0.090 / 0.080
G05     172.7          13.1                7.6 +/-    2.04      19.7 +/-    2.04  0.060 / 0.090
G06     41.8           67.7                4.2 +/-    0.74       4.5 +/-    0.74  0.150 / 0.220
G12     320.4          45.0                4.2 +/-    0.51       5.6 +/-    0.51  0.040 / 0.050
G17     68.1           23.3                3.4 +/-    1.13       6.9 +/-    1.13  0.040 / 0.050
G19     52.3           41.4                3.5 +/-    0.79       5.0 +/-    0.79  0.040 / 0.040
G24     247.3          36.8                7.1 +/-    1.18      10.9 +/-    1.18  0.030 / 0.040
G25     315.6          10.4              -17.0 +/-    8.23     -47.1 +/-    8.23  0.230 / 0.240