Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 31.  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)
 12/31/2022   06:42:21   (  -0.04, -75.19) (   0.91, -79.46)  487.22                80
 01/01/2023   06:26:16   (  -0.04, -75.19) (  -0.11, -74.93)   29.51                80
 01/03/2023   18:26:47   (   0.03, -75.20) (  -0.11, -75.70)   57.62                80
 01/04/2023   18:10:43   (   0.02, -75.21) (   0.92, -71.18)  459.57                80
 01/06/2023   06:29:50   (  -0.02, -75.22) (   0.27, -76.45)  140.22                80
 01/07/2023   06:11:06   (  -0.01, -75.23) (  -0.76, -71.92)  377.11                80
 01/08/2023   18:33:02   (   0.01, -75.25) (  -0.42, -77.23)  225.93                80
 01/09/2023   18:16:56   (   0.01, -75.26) (   0.56, -72.70)  291.88                80
 01/11/2023   06:38:45   (  -0.02, -75.29) (   0.58, -77.98)  306.56                80
 01/12/2023   06:17:20   (  -0.02, -75.30) (  -0.46, -73.46)  211.54                80
 01/13/2023   18:39:16   (   0.02, -75.33) (  -0.76, -78.75)  390.43                80