Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 6 26.  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)
 06/28/2023   18:25:24   (   0.02, -75.19) (  -0.11, -75.72)   60.48                80
 06/29/2023   18:09:19   (   0.02, -75.19) (   0.94, -71.20)  456.07                80
 07/01/2023   06:31:05   (  -0.02, -75.20) (   0.27, -76.46)  144.01                80
 07/02/2023   06:09:40   (  -0.02, -75.20) (  -0.73, -71.92)  372.51                80
 07/03/2023   18:31:36   (   0.02, -75.19) (  -0.41, -77.24)  232.20                80
 07/04/2023   18:15:31   (   0.01, -75.20) (   0.59, -72.70)  284.70                80
 07/06/2023   06:34:37   (  -0.01, -75.20) (   0.61, -77.96)  314.55                80
 07/07/2023   06:18:32   (  -0.01, -75.21) (  -0.40, -73.43)  202.86                80
 07/08/2023   18:37:47   (   0.01, -75.22) (  -0.78, -78.73)  400.30                80
 07/09/2023   18:21:41   (   0.00, -75.23) (   0.22, -74.20)  117.67                80