Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 2 20.  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)
 02/20/2023   18:26:27   (   0.06, -75.19) (  -0.06, -75.76)   65.28                80
 02/21/2023   18:10:22   (   0.06, -75.19) (   0.96, -71.23)  450.86                80
 02/23/2023   06:32:10   (  -0.05, -75.19) (   0.25, -76.50)  149.99                80
 02/24/2023   06:10:45   (  -0.05, -75.19) (  -0.76, -71.97)  366.51                80
 02/25/2023   18:32:41   (   0.05, -75.20) (  -0.43, -77.28)  237.52                80
 02/26/2023   18:16:37   (   0.05, -75.21) (   0.59, -72.75)  279.39                80
 02/28/2023   06:38:24   (  -0.04, -75.22) (   0.61, -78.02)  320.34                80
 03/01/2023   06:17:00   (  -0.04, -75.22) (  -0.42, -73.49)  196.77                80
 03/02/2023   18:38:56   (   0.03, -75.24) (  -0.76, -78.80)  406.33                80
 03/03/2023   18:20:12   (   0.03, -75.25) (   0.27, -74.28)  111.33                80
 03/05/2023   06:44:39   (  -0.02, -75.27) (   0.93, -79.55)  486.94                80
 03/06/2023   06:23:14   (  -0.01, -75.29) (  -0.05, -75.01)   31.16                80