Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 6 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)
 06/25/2022   10:13:01   (  -0.11,-128.47) (  -0.77,-125.59)  328.49                80
 06/26/2022   22:32:47   (   0.14,-128.47) (  -0.45,-131.00)  288.82                80
 06/27/2022   22:17:03   (   0.13,-128.48) (   0.56,-126.55)  219.99                80
 06/29/2022   10:36:42   (  -0.17,-128.49) (   0.61,-131.93)  392.80                80
 06/30/2022   10:20:57   (  -0.15,-128.49) (  -0.40,-127.48)  115.52                80
 07/02/2022   22:24:59   (   0.17,-128.47) (   0.20,-128.43)    5.59                80
 07/05/2022   10:26:13   (  -0.18,-128.48) (   0.01,-129.35)   99.49                80
 07/06/2022   10:10:28   (  -0.17,-128.47) (  -0.95,-124.88)  408.40                80
 07/07/2022   22:30:15   (   0.20,-128.45) (  -0.20,-130.31)  211.49                80
 07/08/2022   22:14:29   (   0.19,-128.44) (   0.76,-125.84)  296.15                80