Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/18/2020   22:04:17   (   0.06,-127.42) (   0.02,-127.57)   17.69                80
 11/19/2020   21:42:41   (   0.08,-127.37) (   1.06,-122.99)  499.08                80
 11/21/2020   10:06:49   (  -0.05,-127.28) (   0.15,-128.17)  101.19                80
 11/22/2020   09:45:13   (  -0.07,-127.24) (  -0.88,-123.59)  415.74                80
 11/23/2020   22:09:30   (   0.04,-127.18) (  -0.30,-128.81)  184.32                80
 11/24/2020   21:47:54   (   0.06,-127.14) (   0.74,-124.23)  332.41                80
 11/26/2020   10:12:02   (  -0.03,-127.04) (   0.48,-129.40)  268.41                80
 11/27/2020   09:50:25   (  -0.05,-126.99) (  -0.56,-124.82)  248.29                80
 11/28/2020   22:14:42   (   0.01,-126.94) (  -0.67,-130.03)  351.97                80
 11/29/2020   21:53:05   (   0.03,-126.88) (   0.37,-125.45)  164.16                80