Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/24/2020   21:47:55   (   0.06,-127.74) (   0.87,-124.25)  397.94                80
 11/26/2020   10:12:04   (  -0.03,-127.80) (   0.35,-129.42)  185.81                80
 11/27/2020   09:50:27   (  -0.05,-127.83) (  -0.69,-124.84)  339.83                80
 11/28/2020   22:14:45   (   0.01,-127.87) (  -0.48,-130.06)  250.03                80
 11/29/2020   21:53:08   (   0.03,-127.90) (   0.57,-125.48)  274.88                80
 12/01/2020   10:17:17   (   0.01,-127.94) (   0.60,-130.67)  310.50                80
 12/02/2020   09:55:41   (  -0.01,-127.97) (  -0.45,-126.09)  214.25                80
 12/03/2020   22:19:57   (  -0.02,-128.00) (  -0.77,-131.30)  376.43                80
 12/04/2020   21:58:21   (  -0.00,-128.02) (   0.28,-126.72)  147.55                80
 12/06/2020   10:22:30   (   0.03,-128.05) (   0.89,-131.91)  439.49                80
 12/07/2020   10:00:54   (   0.01,-128.07) (  -0.15,-127.33)   84.54                80