Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 10 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/20/2022   10:58:05   (   0.04,-137.33) (  -0.35,-135.64)  193.89                80
 10/21/2022   23:17:49   (  -0.03,-137.33) (  -0.84,-141.04)  421.85                80
 10/22/2022   23:02:03   (  -0.03,-137.33) (   0.13,-136.57)   86.68                80
 10/25/2022   11:03:13   (   0.03,-137.31) (   0.07,-137.47)   18.36                80
 10/26/2022   10:47:27   (   0.04,-137.30) (  -0.91,-133.00)  489.44                80
 10/27/2022   23:07:11   (  -0.03,-137.28) (  -0.28,-138.41)  128.08                80
 10/28/2022   22:51:25   (  -0.03,-137.26) (   0.71,-133.94)  379.07                80
 10/30/2022   11:11:01   (   0.03,-137.23) (   0.52,-139.30)  236.28                80
 10/31/2022   10:55:16   (   0.03,-137.21) (  -0.53,-134.85)  270.31                80
 11/01/2022   23:14:59   (  -0.02,-137.18) (  -0.71,-140.23)  348.83                80
 11/02/2022   22:59:12   (  -0.02,-137.15) (   0.28,-135.77)  157.70                80