Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 6 1.  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)
 06/01/2023   18:31:46   (   0.02, -75.19) (  -0.41, -77.23)  231.93                80
 06/02/2023   18:15:41   (   0.02, -75.19) (   0.61, -72.70)  284.51                80
 06/04/2023   06:34:48   (  -0.03, -75.20) (   0.59, -77.97)  315.93                80
 06/05/2023   06:18:44   (  -0.02, -75.20) (  -0.44, -73.44)  200.48                80
 06/06/2023   18:38:00   (   0.03, -75.20) (  -0.76, -78.75)  404.49                80
 06/07/2023   18:21:56   (   0.02, -75.20) (   0.26, -74.22)  112.31                80
 06/09/2023   06:41:03   (  -0.03, -75.21) (   0.92, -79.49)  487.20                80
 06/10/2023   06:24:59   (  -0.02, -75.22) (  -0.10, -74.96)   30.18                80
 06/12/2023   18:25:29   (   0.03, -75.25) (  -0.11, -75.73)   55.72                80
 06/13/2023   18:09:25   (   0.02, -75.26) (   0.92, -71.20)  462.30                80