Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/27/2023   08:53:49   (   0.00,-104.72) (  -0.51,-102.52)  251.19                80
 05/28/2023   21:16:16   (  -0.00,-104.71) (  -0.75,-107.92)  366.48                80
 05/29/2023   21:00:32   (  -0.00,-104.71) (   0.29,-103.47)  142.04                80
 05/31/2023   09:22:52   (   0.00,-104.73) (   0.91,-108.84)  468.32                80
 06/01/2023   09:01:47   (   0.01,-104.73) (  -0.06,-104.37)   39.85                80
 06/03/2023   21:05:51   (  -0.01,-104.70) (  -0.14,-105.32)   70.32                80
 06/04/2023   20:50:07   (  -0.02,-104.70) (   0.84,-100.86)  437.77                80
 06/06/2023   09:12:26   (   0.02,-104.71) (   0.36,-106.23)  173.36                80
 06/07/2023   08:51:21   (   0.02,-104.71) (  -0.62,-101.77)  334.24                80
 06/08/2023   21:13:49   (  -0.02,-104.68) (  -0.59,-107.17)  284.85                80
 06/09/2023   20:58:04   (  -0.02,-104.68) (   0.39,-102.71)  223.25                80