Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 12 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/05/2022   10:13:58   (   0.02,-127.86) (  -0.81,-124.17)  420.96                80
 12/06/2022   22:33:53   (  -0.01,-127.74) (  -0.44,-129.61)  212.98                80
 12/07/2022   22:18:14   (  -0.02,-127.71) (   0.53,-125.16)  289.28                80
 12/09/2022   10:38:01   (   0.00,-127.72) (   0.63,-130.58)  325.56                80
 12/10/2022   10:22:22   (   0.01,-127.68) (  -0.35,-126.14)  176.29                80
 12/11/2022   22:42:17   (   0.01,-127.55) (  -0.90,-131.58)  458.73                80
 12/12/2022   22:26:37   (  -0.00,-127.51) (   0.08,-127.14)   42.95                80
 12/15/2022   10:28:04   (  -0.01,-127.48) (   0.16,-128.10)   70.82                80
 12/16/2022   10:12:26   (  -0.00,-127.44) (  -0.88,-123.67)  430.68                80
 12/17/2022   22:32:20   (   0.02,-127.31) (  -0.42,-129.10)  204.98                80
 12/18/2022   22:16:41   (   0.01,-127.26) (   0.57,-124.66)  296.23                80