Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2020 11 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/02/2020   22:07:36   (   0.11,-128.03) (   0.02,-128.47)   50.94                80
 11/03/2020   21:46:00   (   0.12,-127.99) (   1.06,-123.89)  467.59                80
 11/05/2020   10:10:08   (  -0.10,-127.94) (   0.14,-129.07)  128.99                80
 11/06/2020   09:48:32   (  -0.12,-127.90) (  -0.89,-124.49)  389.23                80
 11/07/2020   22:12:49   (   0.10,-127.85) (  -0.32,-129.71)  211.35                80
 11/08/2020   21:51:13   (   0.11,-127.81) (   0.72,-125.13)  306.36                80
 11/10/2020   10:15:21   (  -0.09,-127.75) (   0.49,-130.30)  291.49                80
 11/11/2020   09:53:44   (  -0.11,-127.71) (  -0.55,-125.72)  226.21                80
 11/12/2020   22:18:02   (   0.08,-127.65) (  -0.65,-130.94)  374.57                80
 11/13/2020   21:56:25   (   0.09,-127.61) (   0.40,-126.36)  142.73                80