Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 7 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/10/2023   07:03:23   (  -0.01, -75.21) (  -0.25, -74.24)  110.74                80
 07/12/2023   19:10:08   (   0.00, -75.23) (   0.01, -75.19)    4.38                80
 07/15/2023   07:14:06   (   0.00, -75.25) (   0.22, -76.11)   98.92                80
 07/16/2023   06:53:04   (   0.00, -75.26) (  -0.81, -71.66)  410.15                80
 07/17/2023   19:15:33   (  -0.00, -75.28) (  -0.39, -77.08)  203.95                80
 07/18/2023   18:59:50   (  -0.00, -75.30) (   0.58, -72.62)  305.56                80
 07/20/2023   07:22:11   (   0.00, -75.32) (   0.61, -78.00)  305.16                80
 07/21/2023   07:01:09   (   0.00, -75.34) (  -0.42, -73.55)  204.78                80
 07/22/2023   19:23:37   (  -0.00, -75.38) (  -0.83, -78.95)  408.03                80
 07/23/2023   19:07:54   (  -0.00, -75.40) (   0.20, -74.51)  102.38                80