Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 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)
 12/26/2022   06:36:06   (  -0.03, -75.20) (   0.57, -77.94)  311.87                80
 12/27/2022   06:20:02   (  -0.02, -75.20) (  -0.45, -73.41)  204.96                80
 12/28/2022   18:39:18   (   0.03, -75.22) (  -0.75, -78.72)  398.25                80
 12/29/2022   18:23:13   (   0.03, -75.23) (   0.28, -74.19)  119.27                80
 12/31/2022   06:42:21   (  -0.03, -75.25) (   0.93, -79.46)  480.07                80
 01/01/2023   06:26:16   (  -0.02, -75.26) (  -0.09, -74.93)   37.83                80
 01/03/2023   18:26:48   (   0.01, -75.31) (  -0.07, -75.71)   45.78                80
 01/04/2023   18:10:44   (   0.01, -75.33) (   0.96, -71.19)  472.58                80
 01/06/2023   06:32:31   (  -0.00, -75.36) (   0.24, -76.46)  125.57                80
 01/07/2023   06:11:06   (   0.01, -75.38) (  -0.79, -71.93)  392.99                80