Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2023 5 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/21/2023   09:06:53   (   0.00,-104.73) (   0.07,-105.12)   44.00                80
 05/22/2023   08:45:48   (  -0.00,-104.72) (  -0.89,-100.65)  463.79                80
 05/23/2023   21:08:17   (   0.01,-104.71) (  -0.32,-106.06)  154.19                80
 05/24/2023   20:52:33   (   0.01,-104.71) (   0.71,-101.61)  353.95                80
 05/26/2023   09:14:53   (  -0.01,-104.72) (   0.49,-106.98)  257.14                80
 05/27/2023   08:53:49   (  -0.02,-104.72) (  -0.54,-102.53)  250.94                80
 05/28/2023   21:16:16   (   0.02,-104.71) (  -0.71,-107.93)  366.87                80
 05/29/2023   21:00:33   (   0.02,-104.71) (   0.32,-103.48)  141.65                80
 05/31/2023   09:22:51   (  -0.02,-104.73) (   0.94,-108.84)  468.70                80
 06/01/2023   09:01:48   (  -0.02,-104.73) (  -0.10,-104.38)   39.38                80
 06/03/2023   21:05:52   (   0.03,-104.71) (  -0.09,-105.34)   71.18                80