Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 1 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/12/2022   23:08:31   (   0.04,-137.20) (  -0.90,-141.26)  463.39                80
 01/13/2022   22:52:49   (   0.03,-137.21) (   0.11,-136.82)   44.75                80
 01/16/2022   10:56:47   (  -0.02,-137.23) (   0.10,-137.76)   60.74                80
 01/17/2022   10:35:45   (  -0.01,-137.23) (  -0.90,-133.32)  446.67                80
 01/18/2022   22:58:14   (   0.00,-137.23) (  -0.33,-138.74)  171.81                80
 01/19/2022   22:42:32   (   0.00,-137.23) (   0.68,-134.29)  335.37                80
 01/21/2022   11:04:53   (  -0.02,-137.23) (   0.55,-139.68)  279.51                80
 01/22/2022   10:43:51   (  -0.02,-137.23) (  -0.46,-135.23)  227.13                80
 01/23/2022   23:06:20   (   0.02,-137.22) (  -0.76,-140.66)  392.56                80
 01/24/2022   22:50:37   (   0.02,-137.21) (   0.25,-136.21)  113.81                80