Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 25.  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) (   0.33,-129.43)  185.86                80
 11/27/2020   09:50:28   (  -0.05,-127.83) (  -0.71,-124.85)  339.72                80
 11/28/2020   22:14:45   (   0.01,-127.87) (  -0.46,-130.07)  250.13                80
 11/29/2020   21:53:08   (   0.03,-127.90) (   0.58,-125.49)  274.75                80
 12/01/2020   10:17:17   (   0.01,-127.94) (   0.65,-130.66)  310.76                80
 12/02/2020   09:55:41   (  -0.01,-127.97) (  -0.46,-126.09)  213.96                80
 12/03/2020   22:19:57   (  -0.02,-128.00) (  -0.76,-131.30)  376.74                80
 12/04/2020   21:58:21   (  -0.00,-128.01) (   0.28,-126.72)  147.20                80
 12/06/2020   10:22:30   (   0.03,-128.05) (   0.89,-131.91)  439.96                80
 12/07/2020   10:00:54   (   0.01,-128.07) (  -0.16,-127.33)   84.02                80