PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-15:28:10
G02     218.9          62.3               14.8 +/-    1.02      16.5 +/-    1.02  0.080 / 0.100
G06     51.7           72.5               13.1 +/-    0.69      13.7 +/-    0.69  0.080 / 0.070
G12     319.7          39.0               10.0 +/-    1.01      14.7 +/-    1.01  0.080 / 0.060
G17     62.1           27.9                9.2 +/-    1.04      16.9 +/-    1.04  0.050 / 0.080
G19     45.7           45.3                9.5 +/-    0.53      12.8 +/-    0.53  0.060 / 0.090
G24     263.1          40.6               13.4 +/-    0.93      19.3 +/-    0.93  0.060 / 0.120
G28     125.4          10.4               16.4 +/-    5.45      45.5 +/-    5.45  0.040 / 0.050