Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 8 24.  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)
 08/25/2023   18:37:11   (  -0.06, -75.21) (  -0.84, -78.63)  389.64                80
 08/26/2023   18:21:07   (  -0.06, -75.21) (   0.21, -74.11)  126.48                80
 08/28/2023   06:42:56   (   0.05, -75.22) (   0.99, -79.38)  474.37                80
 08/29/2023   06:21:32   (   0.05, -75.22) (  -0.06, -74.86)   42.09                80
 08/31/2023   18:24:45   (  -0.04, -75.24) (  -0.12, -75.64)   45.17                80
 09/01/2023   18:08:40   (  -0.04, -75.25) (   0.88, -71.11)  472.19                80
 09/03/2023   06:30:29   (   0.04, -75.27) (   0.31, -76.38)  126.65                80
 09/04/2023   06:09:05   (   0.04, -75.29) (  -0.74, -71.86)  391.05                80
 09/05/2023   18:31:02   (  -0.04, -75.31) (  -0.48, -77.16)  211.65                80
 09/06/2023   18:14:58   (  -0.04, -75.32) (   0.59, -72.64)  306.27                80