Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 6 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/17/2023   09:10:34   (   0.00,-104.72) (   0.19,-105.63)  103.38                80
 06/18/2023   08:49:32   (   0.01,-104.72) (  -0.80,-101.18)  404.12                80
 06/19/2023   21:12:01   (  -0.01,-104.71) (  -0.43,-106.59)  214.53                80
 06/20/2023   20:56:18   (  -0.02,-104.71) (   0.57,-102.14)  293.34                80
 06/22/2023   09:18:41   (   0.02,-104.73) (   0.62,-107.52)  317.90                80
 06/23/2023   08:57:38   (   0.02,-104.73) (  -0.38,-103.07)  189.85                80
 06/24/2023   21:20:08   (  -0.02,-104.71) (  -0.85,-108.48)  428.90                80
 06/25/2023   21:04:25   (  -0.02,-104.72) (   0.16,-104.03)   79.30                80
 06/28/2023   09:08:24   (   0.03,-104.75) (   0.08,-104.95)   23.32                80
 06/29/2023   08:47:21   (   0.03,-104.75) (  -0.93,-100.50)  484.44                80