Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 3 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/25/2023   20:55:53   (   0.00,-104.76) (   0.35,-103.21)  176.31                80
 03/27/2023   09:18:15   (  -0.01,-104.76) (   0.83,-108.60)  437.72                80
 03/28/2023   08:57:13   (  -0.01,-104.75) (  -0.16,-104.15)   69.66                80
 03/30/2023   21:01:20   (   0.00,-104.75) (  -0.09,-105.10)   40.31                80
 03/31/2023   20:45:37   (  -0.00,-104.76) (   0.92,-100.65)  467.57                80
 04/02/2023   09:07:58   (   0.00,-104.76) (   0.28,-106.04)  145.42                80
 04/03/2023   08:46:56   (   0.01,-104.76) (  -0.74,-101.59)  362.44                80
 04/04/2023   21:09:25   (   0.02,-104.76) (  -0.50,-107.00)  255.46                80
 04/05/2023   20:53:43   (   0.02,-104.77) (   0.53,-102.55)  252.63                80
 04/07/2023   09:16:03   (  -0.03,-104.77) (   0.69,-107.93)  359.67                80