PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/22-03:57:30
G02     231.3          72.6                7.7 +/-    0.58       8.0 +/-    0.58  0.070 / 0.080
G05     173.3          12.3                3.7 +/-    5.74       9.9 +/-    5.74  0.050 / 0.070
G06     42.2           69.2                6.2 +/-    0.34       6.6 +/-    0.34  0.050 / 0.050
G12     320.4          44.7                4.7 +/-    0.48       6.3 +/-    0.48  0.040 / 0.050
G17     67.8           23.3                5.0 +/-    1.74      10.1 +/-    1.74  0.030 / 0.040
G19     51.2           42.2                5.2 +/-    0.90       7.4 +/-    0.90  0.040 / 0.050
G24     247.3          37.2                6.1 +/-    1.28       9.4 +/-    1.28  0.160 / 0.280
G25     315.5          10.7              -14.4 +/-   18.36     -39.5 +/-   18.36  0.290 / 0.430