Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 1 29.  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   (   0.03,-117.15) (   0.90,-121.07)  447.13                80
 01/30/2023   09:44:12   (   0.03,-116.00) (   0.15,-116.58)   65.64                80
 01/31/2023   09:28:28   (   0.03,-114.84) (  -0.60,-112.08)  315.60                80
 02/01/2023   21:48:14   (  -0.04,-113.08) (  -1.02,-117.42)  495.06                80
 02/02/2023   21:29:49   (  -0.04,-111.92) (  -0.26,-112.92)  113.62                80
 02/03/2023   21:14:05   (  -0.05,-110.77) (   0.50,-108.43)  267.62                80
 02/06/2023   09:15:19   (   0.06,-107.85) (   0.34,-109.24)  157.79                80
 02/07/2023   08:59:33   (   0.06,-106.70) (  -0.37,-104.73)  223.51                80
 02/09/2023   21:00:55   (  -0.06,-103.78) (  -0.45,-105.58)  205.43                80
 02/10/2023   20:45:10   (  -0.06,-102.62) (   0.27,-101.08)  176.02                80