Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 6 2.  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)
 06/02/2023   18:15:40   (   0.02, -75.20) (   0.55, -72.69)  284.63                80
 06/04/2023   06:34:49   (  -0.03, -75.20) (   0.58, -77.97)  315.85                80
 06/05/2023   06:18:44   (  -0.02, -75.20) (  -0.44, -73.44)  200.61                80
 06/06/2023   18:38:00   (   0.03, -75.20) (  -0.76, -78.75)  404.22                80
 06/07/2023   18:21:56   (   0.02, -75.20) (   0.27, -74.22)  112.64                80
 06/09/2023   06:41:03   (  -0.03, -75.22) (   0.92, -79.49)  486.89                80
 06/10/2023   06:24:58   (  -0.02, -75.22) (  -0.05, -74.95)   30.60                80
 06/12/2023   18:25:30   (   0.03, -75.25) (  -0.10, -75.73)   55.12                80
 06/13/2023   18:09:25   (   0.02, -75.27) (   0.93, -71.20)  462.89                80
 06/15/2023   06:28:32   (  -0.04, -75.29) (   0.25, -76.47)  135.09                80