Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 25.  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   06:36:05   (  -0.03, -75.18) (   0.61, -77.93)  313.04                80
 12/27/2022   06:20:01   (  -0.02, -75.18) (  -0.40, -73.40)  202.96                80
 12/28/2022   18:39:18   (   0.03, -75.19) (  -0.73, -78.72)  401.82                80
 12/29/2022   18:23:13   (   0.03, -75.19) (   0.23, -74.18)  114.88                80
 12/31/2022   06:42:21   (  -0.03, -75.20) (   0.92, -79.46)  485.48                80
 01/01/2023   06:26:16   (  -0.03, -75.21) (  -0.10, -74.93)   31.64                80
 01/03/2023   18:26:47   (   0.01, -75.23) (  -0.12, -75.70)   54.49                80
 01/04/2023   18:10:43   (   0.01, -75.24) (   0.91, -71.18)  463.08                80
 01/06/2023   06:32:31   (  -0.00, -75.26) (   0.24, -76.46)  136.12                80
 01/07/2023   06:11:06   (   0.01, -75.27) (  -0.73, -71.92)  381.64                80