Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2021 11 26.  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) (  -0.93,-132.40)  469.93                80
 11/27/2021   22:16:04   (  -0.02,-128.26) (   0.04,-127.95)   34.50                80
 11/30/2021   10:17:27   (   0.01,-128.20) (   0.16,-128.92)   81.99                80
 12/01/2021   10:01:46   (   0.03,-128.17) (  -0.84,-124.48)  421.64                80
 12/02/2021   22:21:41   (  -0.00,-128.14) (  -0.38,-129.93)  203.42                80
 12/03/2021   22:06:00   (  -0.02,-128.11) (   0.60,-125.48)  299.65                80
 12/05/2021   10:25:44   (  -0.01,-128.06) (   0.65,-130.88)  322.93                80
 12/06/2021   10:10:05   (   0.01,-128.02) (  -0.36,-126.45)  179.27                80
 12/07/2021   22:30:00   (   0.02,-127.97) (  -0.87,-131.90)  447.99                80
 12/08/2021   22:14:21   (   0.01,-127.94) (   0.11,-127.46)   54.02                80