Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 3 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/29/2022   10:32:26   (   0.11,-128.34) (   0.73,-131.01)  304.65                80
 03/30/2022   10:11:23   (   0.11,-128.36) (  -0.32,-126.57)  204.95                80
 03/31/2022   22:33:53   (  -0.11,-128.41) (  -0.91,-131.99)  408.30                80
 04/01/2022   22:18:09   (  -0.11,-128.43) (   0.08,-127.54)  101.33                80
 04/04/2022   10:19:25   (   0.11,-128.46) (   0.14,-128.46)    3.58                80
 04/06/2022   22:23:32   (  -0.11,-128.51) (  -0.31,-129.45)  106.95                80
 04/07/2022   22:07:48   (  -0.12,-128.52) (   0.69,-124.99)  401.94                80
 04/09/2022   10:30:08   (   0.12,-128.52) (   0.53,-130.38)  211.12                80
 04/10/2022   10:09:04   (   0.12,-128.53) (  -0.47,-125.92)  297.33                80
 04/11/2022   22:31:33   (  -0.12,-128.55) (  -0.74,-131.35)  318.41                80