Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 3 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/27/2022   22:10:07   (  -0.10,-128.33) (   0.51,-125.63)  307.26                80
 03/29/2022   10:32:26   (   0.11,-128.34) (   0.72,-131.01)  304.45                80
 03/30/2022   10:11:22   (   0.11,-128.36) (  -0.27,-126.56)  205.21                80
 03/31/2022   22:33:53   (  -0.11,-128.41) (  -0.90,-131.99)  407.99                80
 04/01/2022   22:18:09   (  -0.11,-128.43) (   0.10,-127.54)  101.72                80
 04/04/2022   10:19:25   (   0.11,-128.46) (   0.13,-128.47)    1.95                80
 04/06/2022   22:23:31   (  -0.11,-128.51) (  -0.35,-129.44)  106.18                80
 04/07/2022   22:07:47   (  -0.12,-128.52) (   0.65,-124.99)  402.82                80
 04/09/2022   10:30:08   (   0.12,-128.53) (   0.51,-130.38)  210.08                80