Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 1 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/29/2023   10:02:36   (   0.02,-117.17) (   0.91,-121.07)  444.85                80
 01/30/2023   09:44:12   (   0.02,-116.02) (   0.15,-116.58)   63.74                80
 01/31/2023   09:28:28   (   0.02,-114.86) (  -0.60,-112.08)  317.12                80
 02/01/2023   21:48:14   (  -0.02,-113.09) (  -1.03,-117.42)  493.92                80
 02/02/2023   21:29:49   (  -0.02,-111.94) (  -0.27,-112.92)  112.90                80
 02/03/2023   21:14:05   (  -0.02,-110.78) (   0.49,-108.43)  267.96                80
 02/06/2023   09:15:19   (   0.03,-107.85) (   0.35,-109.24)  158.59                80
 02/07/2023   08:59:34   (   0.03,-106.69) (  -0.42,-104.74)  222.29                80
 02/09/2023   21:00:55   (  -0.03,-103.77) (  -0.46,-105.58)  207.28                80
 02/10/2023   20:45:11   (  -0.03,-102.61) (   0.31,-101.09)  173.77                80