Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2023 12 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/19/2023   07:22:19   (  -0.02, -75.24) (   0.08, -75.72)   54.26                80
 12/20/2023   07:01:12   (  -0.02, -75.25) (  -0.92, -71.24)  457.05                80
 12/21/2023   19:23:35   (   0.02, -75.27) (  -0.28, -76.63)  154.16                80
 12/22/2023   19:07:48   (   0.01, -75.29) (   0.72, -72.15)  357.70                80
 12/24/2023   07:30:01   (  -0.01, -75.31) (   0.50, -77.49)  248.79                80
 12/25/2023   07:08:54   (   0.00, -75.33) (  -0.51, -73.02)  263.16                80
 12/26/2023   19:31:17   (  -0.00, -75.35) (  -0.68, -78.40)  347.50                80
 12/27/2023   19:15:29   (  -0.01, -75.37) (   0.33, -73.93)  164.86                80
 12/29/2023   07:37:43   (   0.01, -75.41) (   0.88, -79.27)  440.33                80
 12/30/2023   07:16:35   (   0.00, -75.43) (  -0.14, -74.80)   72.28                80