Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 4 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/07/2023   09:16:05   (  -0.00,-104.75) (   0.71,-107.93)  363.15                80
 04/08/2023   08:55:03   (  -0.00,-104.74) (  -0.31,-103.48)  144.13                80
 04/09/2023   21:17:32   (   0.00,-104.74) (  -0.95,-108.89)  473.96                80
 04/10/2023   21:01:50   (   0.00,-104.73) (   0.07,-104.44)   33.23                80
 04/13/2023   09:05:48   (   0.00,-104.72) (   0.14,-105.37)   73.81                80
 04/14/2023   08:44:45   (  -0.00,-104.71) (  -0.89,-100.92)  433.03                80
 04/15/2023   21:07:14   (   0.00,-104.70) (  -0.36,-106.33)  185.51                80
 04/16/2023   20:51:31   (   0.00,-104.70) (   0.62,-101.87)  321.93                80
 04/18/2023   09:13:51   (  -0.00,-104.70) (   0.59,-107.25)  290.88                80
 04/19/2023   08:52:49   (  -0.00,-104.70) (  -0.44,-102.80)  216.53                80