PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/02-14:12:30
G02     213.7          52.9                9.2 +/-    1.10      11.2 +/-    1.10  0.040 / 0.060
G06     69.8           76.7                8.2 +/-    0.26       8.4 +/-    0.26  0.040 / 0.040
G12     316.6          32.3                6.0 +/-    2.03      10.0 +/-    2.03  0.060 / 0.090
G17     51.6           37.2                6.5 +/-    1.05      10.0 +/-    1.05  0.080 / 0.130
G19     35.9           50.5                6.0 +/-    1.35       7.5 +/-    1.35  0.090 / 0.200
G24     272.4          41.6                7.7 +/-    2.69      10.9 +/-    2.69  0.090 / 0.250
G28     117.4          22.9                9.1 +/-    1.31      18.6 +/-    1.31  0.030 / 0.030