Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 27.  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)
 12/27/2022   06:20:02   (  -0.02, -75.18) (  -0.45, -73.41)  202.60                80
 12/28/2022   18:39:18   (   0.03, -75.18) (  -0.75, -78.72)  402.39                80
 12/29/2022   18:23:13   (   0.03, -75.19) (   0.28, -74.19)  114.14                80
 12/31/2022   06:42:21   (  -0.03, -75.19) (   0.93, -79.46)  486.53                80
 01/01/2023   06:26:16   (  -0.03, -75.20) (  -0.10, -74.93)   30.38                80
 01/03/2023   18:26:47   (   0.01, -75.22) (  -0.12, -75.70)   56.08                80
 01/04/2023   18:10:43   (   0.01, -75.23) (   0.90, -71.18)  461.34                80
 01/06/2023   06:32:30   (  -0.00, -75.24) (   0.29, -76.45)  138.13                80
 01/07/2023   06:11:05   (   0.01, -75.25) (  -0.74, -71.92)  379.46                80
 01/08/2023   18:33:02   (  -0.01, -75.27) (  -0.44, -77.23)  223.04                80
 01/09/2023   18:16:56   (  -0.01, -75.29) (   0.54, -72.69)  294.98                80