Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 3 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/22/2023   09:10:07   (   0.00,-104.75) (   0.44,-106.69)  221.76                80
 03/23/2023   08:49:04   (   0.00,-104.75) (  -0.55,-102.24)  285.62                80
 03/24/2023   21:11:34   (  -0.00,-104.76) (  -0.68,-107.66)  331.15                80
 03/25/2023   20:55:53   (  -0.00,-104.76) (   0.37,-103.22)  176.43                80
 03/27/2023   09:18:14   (  -0.00,-104.76) (   0.88,-108.59)  437.55                80
 03/28/2023   08:57:12   (  -0.00,-104.76) (  -0.11,-104.14)   69.80                80
 03/30/2023   21:01:20   (  -0.00,-104.76) (  -0.10,-105.11)   39.75                80
 03/31/2023   20:45:37   (  -0.00,-104.77) (   0.90,-100.66)  468.08                80
 04/02/2023   09:07:59   (   0.00,-104.77) (   0.32,-106.04)  145.17                80
 04/03/2023   08:46:56   (   0.00,-104.77) (  -0.69,-101.59)  362.55                80