Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 12 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/09/2022   10:38:01   (   0.00,-127.72) (   0.62,-130.58)  325.45                80
 12/10/2022   10:22:22   (   0.01,-127.68) (  -0.35,-126.14)  176.35                80
 12/11/2022   22:42:17   (   0.00,-127.55) (  -0.89,-131.58)  458.67                80
 12/12/2022   22:26:37   (  -0.00,-127.51) (   0.08,-127.13)   42.96                80
 12/15/2022   10:28:04   (  -0.01,-127.48) (   0.15,-128.10)   71.00                80
 12/16/2022   10:12:25   (  -0.00,-127.44) (  -0.83,-123.66)  430.39                80
 12/17/2022   22:32:20   (   0.01,-127.30) (  -0.41,-129.10)  205.28                80
 12/18/2022   22:16:41   (   0.01,-127.26) (   0.57,-124.66)  295.88                80
 12/20/2022   10:36:27   (  -0.02,-127.26) (   0.64,-130.06)  320.47                80
 12/21/2022   10:20:48   (  -0.01,-127.21) (  -0.35,-125.62)  180.11                80