Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/26/2020   10:12:04   (  -0.03,-127.80) (   0.32,-129.43)  185.89                80
 11/27/2020   09:50:28   (  -0.05,-127.83) (  -0.72,-124.85)  339.67                80
 11/28/2020   22:14:45   (   0.01,-127.87) (  -0.45,-130.07)  250.14                80
 11/29/2020   21:53:09   (   0.03,-127.89) (   0.59,-125.49)  274.75                80
 12/01/2020   10:17:17   (   0.01,-127.94) (   0.63,-130.66)  310.88                80
 12/02/2020   09:55:40   (  -0.01,-127.96) (  -0.41,-126.08)  213.79                80
 12/03/2020   22:19:58   (  -0.02,-127.99) (  -0.75,-131.30)  376.88                80
 12/04/2020   21:58:21   (  -0.00,-128.01) (   0.30,-126.72)  147.04                80
 12/06/2020   10:22:31   (   0.03,-128.04) (   0.88,-131.91)  440.22                80
 12/07/2020   10:00:54   (   0.01,-128.06) (  -0.17,-127.33)   83.74                80
 12/09/2020   22:03:34   (  -0.03,-128.10) (   0.01,-127.96)   16.27                80