Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 3 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)
 03/25/2022   10:03:20   (   0.10,-128.26) (  -0.70,-124.66)  410.27                80
 03/26/2022   22:25:49   (  -0.10,-128.30) (  -0.53,-130.08)  202.64                80
 03/27/2022   22:10:07   (  -0.10,-128.33) (   0.52,-125.64)  307.21                80
 03/29/2022   10:32:26   (   0.11,-128.35) (   0.71,-131.01)  304.25                80
 03/30/2022   10:11:23   (   0.11,-128.37) (  -0.28,-126.56)  205.42                80
 03/31/2022   22:33:52   (  -0.11,-128.41) (  -0.94,-131.98)  407.93                80
 04/01/2022   22:18:10   (  -0.11,-128.43) (   0.11,-127.54)  101.84                80
 04/04/2022   10:19:25   (   0.11,-128.47) (   0.12,-128.47)    0.95                80
 04/06/2022   22:23:31   (  -0.11,-128.52) (  -0.34,-129.44)  105.90                80
 04/07/2022   22:07:48   (  -0.12,-128.53) (   0.66,-124.99)  403.10                80