Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 9 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/03/2023   06:03:06   (  -0.38, 126.28) (  -1.22, 122.54)  427.14                80
 09/04/2023   05:42:05   (  -0.39, 125.25) (  -0.01, 126.95)  193.44                80
 09/05/2023   18:07:09   (   0.38, 123.70) (   0.89, 121.51)  250.04                80
 09/06/2023   17:46:09   (   0.39, 122.67) (  -0.32, 125.92)  370.05                80
 09/08/2023   06:11:23   (  -0.37, 121.04) (  -0.54, 120.43)   70.63                80
 09/10/2023   18:12:48   (   0.36, 118.43) (   0.13, 119.38)  109.03                80
 09/12/2023   06:38:02   (  -0.34, 116.80) (  -0.98, 113.90)  331.08                80
 09/13/2023   06:17:02   (  -0.35, 115.75) (   0.24, 118.31)  291.71                80
 09/14/2023   18:42:06   (   0.33, 114.15) (   0.63, 112.86)  147.18                80
 09/15/2023   18:21:06   (   0.35, 113.10) (  -0.59, 117.27)  475.41                80