Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2021 11 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)
 11/26/2021   22:31:45   (  -0.01,-128.27) (  -0.94,-132.40)  470.04                80
 11/27/2021   22:16:04   (  -0.02,-128.25) (   0.03,-127.95)   34.35                80
 11/30/2021   10:17:27   (   0.01,-128.19) (   0.17,-128.91)   82.17                80
 12/01/2021   10:01:46   (   0.03,-128.17) (  -0.83,-124.48)  421.40                80
 12/02/2021   22:21:40   (  -0.00,-128.13) (  -0.39,-129.92)  203.81                80
 12/03/2021   22:06:00   (  -0.02,-128.10) (   0.59,-125.48)  299.20                80
 12/05/2021   10:25:45   (  -0.01,-128.05) (   0.60,-130.89)  323.35                80
 12/06/2021   10:10:05   (   0.01,-128.02) (  -0.35,-126.45)  178.80                80
 12/07/2021   22:30:00   (   0.02,-127.97) (  -0.88,-131.90)  448.64                80
 12/08/2021   22:14:21   (   0.01,-127.93) (   0.10,-127.46)   53.34                80