Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 4 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/02/2023   09:08:00   (   0.00,-104.76) (   0.27,-106.04)  145.94                80
 04/03/2023   08:46:57   (   0.00,-104.76) (  -0.73,-101.59)  361.80                80
 04/04/2023   21:09:26   (  -0.00,-104.77) (  -0.53,-107.00)  255.21                80
 04/05/2023   20:53:44   (  -0.00,-104.77) (   0.48,-102.55)  252.88                80
 04/07/2023   09:16:05   (   0.00,-104.78) (   0.71,-107.93)  359.49                80
 04/08/2023   08:55:03   (   0.00,-104.78) (  -0.30,-103.48)  148.18                80
 04/09/2023   21:17:32   (  -0.01,-104.77) (  -0.95,-108.89)  469.66                80
 04/10/2023   21:01:50   (  -0.01,-104.77) (   0.07,-104.44)   38.12                80
 04/13/2023   09:05:47   (   0.02,-104.78) (   0.13,-105.37)   67.17                80
 04/14/2023   08:44:44   (   0.02,-104.77) (  -0.84,-100.91)  440.22                80
 04/15/2023   21:07:13   (  -0.02,-104.76) (  -0.40,-106.32)  178.11                80