Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 7 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/03/2023   01:39:50   (   0.28,-170.32) (   0.00,-172.75)  271.84                80
 07/04/2023   01:18:46   (   0.25,-171.35) (   0.96,-168.29)  349.05                80
 07/05/2023   13:43:54   (  -0.29,-172.92) (  -0.09,-173.75)   94.85                80
 07/08/2023   01:45:29   (   0.29,-175.50) (   0.43,-174.83)   76.54                80
 07/09/2023   14:10:38   (  -0.32,-177.07) (   0.38, 179.70)  367.17                80
 07/10/2023   13:49:38   (  -0.29,-178.09) (  -0.82,-175.89)  251.49                80
 07/12/2023   02:14:52   (   0.33,-179.65) (  -0.09, 178.63)  196.82                80
 07/13/2023   01:53:53   (   0.31, 179.33) (   1.11,-176.96)  421.69                80
 07/14/2023   14:19:01   (  -0.34, 177.77) (  -0.31, 177.57)   23.00                80
 07/16/2023   02:41:36   (   0.37, 176.22) (  -0.59, 172.08)  472.44                80