Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 5 30.  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)
 05/31/2023   06:12:29   (  -0.02, -75.19) (  -0.77, -71.92)  373.21                80
 06/01/2023   18:31:45   (   0.02, -75.19) (  -0.44, -77.23)  232.12                80
 06/02/2023   18:15:41   (   0.02, -75.19) (   0.58, -72.70)  284.23                80
 06/04/2023   06:34:48   (  -0.03, -75.20) (   0.61, -77.97)  316.14                80
 06/05/2023   06:18:44   (  -0.02, -75.20) (  -0.41, -73.44)  200.21                80
 06/06/2023   18:38:00   (   0.03, -75.19) (  -0.78, -78.74)  405.00                80
 06/07/2023   18:21:55   (   0.02, -75.20) (   0.24, -74.22)  111.70                80
 06/09/2023   06:41:03   (  -0.03, -75.21) (   0.95, -79.48)  487.74                80
 06/10/2023   06:24:58   (  -0.02, -75.22) (  -0.08, -74.96)   29.48                80
 06/12/2023   18:25:30   (   0.02, -75.24) (  -0.08, -75.74)   56.52                80
 06/13/2023   18:09:26   (   0.02, -75.25) (   0.95, -71.21)  461.35                80