Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 4 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 04/29/2023   06:09:37   (  -0.03, -75.18) (  -0.78, -71.83)  382.46                80
 04/30/2023   18:34:14   (   0.02, -75.18) (  -0.41, -77.14)  222.48                80
 05/01/2023   18:12:50   (   0.02, -75.19) (   0.57, -72.60)  294.05                80
 05/03/2023   06:37:19   (  -0.02, -75.20) (   0.57, -77.89)  305.59                80
 05/04/2023   06:15:55   (  -0.02, -75.21) (  -0.41, -73.35)  211.15                80
 05/05/2023   18:40:32   (   0.02, -75.22) (  -0.76, -78.67)  393.09                80
 05/06/2023   18:19:08   (   0.02, -75.23) (   0.29, -74.15)  123.79                80
 05/08/2023   06:43:37   (  -0.02, -75.24) (   0.90, -79.42)  475.53                80
 05/09/2023   06:22:12   (  -0.02, -75.25) (  -0.10, -74.89)   41.33                80
 05/11/2023   18:28:05   (   0.01, -75.27) (  -0.06, -75.67)   45.47                80