Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/22/2020   09:45:14   (  -0.07,-127.66) (  -0.98,-123.61)  462.10                80
 11/23/2020   22:09:31   (   0.04,-127.70) (  -0.20,-128.82)  127.68                80
 11/24/2020   21:47:55   (   0.06,-127.74) (   0.84,-124.24)  397.91                80
 11/26/2020   10:12:04   (  -0.03,-127.80) (   0.32,-129.43)  185.60                80
 11/27/2020   09:50:28   (  -0.05,-127.84) (  -0.72,-124.85)  340.12                80
 11/28/2020   22:14:45   (   0.01,-127.87) (  -0.45,-130.07)  249.73                80
 11/29/2020   21:53:09   (   0.03,-127.90) (   0.59,-125.49)  275.28                80
 12/01/2020   10:17:17   (   0.01,-127.95) (   0.64,-130.66)  309.92                80
 12/02/2020   09:55:41   (  -0.01,-127.98) (  -0.46,-126.10)  214.93                80
 12/03/2020   22:19:58   (  -0.02,-128.01) (  -0.75,-131.31)  375.71                80
 12/04/2020   21:58:21   (  -0.00,-128.03) (   0.30,-126.73)  148.33                80