Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 3 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/24/2022   23:03:11   (   0.04,-137.19) (  -0.46,-139.44)  256.66                80
 03/25/2022   22:47:28   (   0.04,-137.18) (   0.53,-134.99)  249.87                80
 03/27/2022   11:09:47   (  -0.03,-137.16) (   0.71,-140.37)  365.78                80
 03/28/2022   10:48:44   (  -0.02,-137.15) (  -0.28,-135.91)  140.57                80
 03/29/2022   23:11:13   (   0.02,-137.14) (  -0.95,-141.33)  478.65                80
 03/30/2022   22:55:29   (   0.02,-137.13) (   0.04,-136.88)   27.82                80
 04/02/2022   10:59:26   (  -0.02,-137.10) (   0.14,-137.82)   82.31                80
 04/03/2022   10:38:23   (  -0.02,-137.08) (  -0.85,-133.37)  423.45                80
 04/04/2022   23:00:52   (   0.02,-137.06) (  -0.37,-138.79)  196.95                80
 04/05/2022   22:45:09   (   0.02,-137.04) (   0.62,-134.34)  308.50                80