Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 8 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/23/2022   10:26:12   (   0.39,-128.04) (   0.42,-128.14)   11.33                80
 08/24/2022   10:05:08   (   0.39,-128.03) (  -0.62,-123.69)  495.27                80
 08/25/2022   22:27:34   (  -0.39,-127.99) (  -0.62,-129.10)  126.15                80
 08/26/2022   22:11:49   (  -0.38,-127.98) (   0.36,-124.63)  381.11                80
 08/28/2022   10:34:06   (   0.38,-127.99) (   0.82,-130.01)  229.69                80
 08/29/2022   10:13:00   (   0.38,-127.97) (  -0.16,-125.54)  276.76                80
 08/30/2022   22:35:27   (  -0.38,-127.91) (  -1.07,-130.95)  346.53                80
 08/31/2022   22:19:41   (  -0.38,-127.90) (  -0.08,-126.49)  160.28                80
 09/02/2022   10:41:58   (   0.37,-127.91) (   1.27,-131.86)  450.58                80
 09/03/2022   10:20:53   (   0.37,-127.88) (   0.29,-127.40)   54.99                80