Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 7 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/05/2023   21:17:56   (  -0.01,-104.70) (  -0.69,-107.80)  352.25                80
 07/06/2023   21:02:12   (  -0.01,-104.70) (   0.27,-103.33)  155.73                80
 07/08/2023   09:24:35   (   0.01,-104.74) (   0.89,-108.72)  454.25                80
 07/09/2023   09:03:31   (   0.01,-104.74) (  -0.08,-104.26)   53.62                80
 07/11/2023   21:07:37   (  -0.02,-104.71) (  -0.16,-105.21)   57.89                80
 07/12/2023   20:51:54   (  -0.02,-104.72) (   0.87,-100.77)  450.41                80
 07/14/2023   09:14:16   (   0.03,-104.75) (   0.34,-106.15)  159.01                80
 07/15/2023   08:53:13   (   0.03,-104.75) (  -0.69,-101.70)  348.87                80
 07/16/2023   21:15:42   (  -0.04,-104.72) (  -0.57,-107.10)  271.12                80
 07/17/2023   20:59:58   (  -0.04,-104.72) (   0.40,-102.64)  237.15                80