Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 8 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/20/2022   22:22:21   (  -0.40,-128.04) (  -0.20,-127.24)   92.28                80
 08/23/2022   10:26:13   (   0.39,-128.05) (   0.40,-128.15)   11.30                80
 08/24/2022   10:05:07   (   0.39,-128.03) (  -0.58,-123.68)  495.45                80
 08/25/2022   22:27:33   (  -0.39,-127.99) (  -0.66,-129.09)  126.19                80
 08/26/2022   22:11:49   (  -0.38,-127.98) (   0.38,-124.64)  381.14                80
 08/28/2022   10:34:05   (   0.38,-127.99) (   0.86,-130.00)  229.30                80
 08/29/2022   10:13:01   (   0.38,-127.98) (  -0.18,-125.55)  277.22                80
 08/30/2022   22:35:27   (  -0.38,-127.91) (  -1.04,-130.96)  346.28                80
 08/31/2022   22:19:42   (  -0.38,-127.90) (  -0.06,-126.49)  160.58                80
 09/02/2022   10:41:59   (   0.37,-127.92) (   1.25,-131.87)  449.90                80