Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 12 5.  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)
 12/06/2023   18:09:30   (  -0.00, -75.21) (   0.87, -71.34)  440.84                80
 12/08/2023   06:31:19   (  -0.00, -75.20) (   0.31, -76.61)  160.56                80
 12/09/2023   06:09:54   (   0.00, -75.20) (  -0.69, -72.08)  356.05                80
 12/10/2023   18:31:51   (  -0.00, -75.22) (  -0.51, -77.38)  247.32                80
 12/11/2023   18:15:46   (  -0.01, -75.22) (   0.50, -72.85)  269.54                80
 12/13/2023   06:37:34   (   0.01, -75.22) (   0.68, -78.12)  331.25                80
 12/14/2023   06:16:10   (   0.01, -75.22) (  -0.33, -73.59)  185.43                80
 12/15/2023   18:38:06   (  -0.01, -75.23) (  -0.86, -78.89)  417.95                80
 12/16/2023   18:22:02   (  -0.01, -75.24) (   0.16, -74.36)   99.20                80
 12/19/2023   06:22:26   (   0.00, -75.26) (  -0.02, -75.10)   17.14                80