Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 7 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/11/2023   21:07:38   (  -0.01,-104.72) (  -0.10,-105.23)   57.65                80
 07/12/2023   20:51:54   (  -0.01,-104.72) (   0.87,-100.76)  450.58                80
 07/14/2023   09:14:16   (   0.01,-104.75) (   0.34,-106.14)  159.70                80
 07/15/2023   08:53:13   (   0.02,-104.75) (  -0.69,-101.70)  348.12                80
 07/16/2023   21:15:42   (  -0.02,-104.72) (  -0.57,-107.10)  271.34                80
 07/17/2023   20:59:59   (  -0.02,-104.72) (   0.46,-102.65)  236.83                80
 07/19/2023   09:22:20   (   0.02,-104.76) (   0.73,-108.03)  372.71                80
 07/20/2023   09:01:17   (   0.02,-104.76) (  -0.24,-103.57)  135.35                80
 07/21/2023   21:23:46   (  -0.01,-104.74) (  -0.95,-108.99)  484.18                80
 07/22/2023   21:08:03   (  -0.01,-104.74) (   0.02,-104.53)   24.33                80