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)
 01/01/2023   06:26:17   (  -0.04, -75.19) (  -0.12, -74.94)   29.62                80
 01/03/2023   18:26:47   (   0.03, -75.20) (  -0.10, -75.71)   57.66                80
 01/04/2023   18:10:43   (   0.02, -75.21) (   0.93, -71.18)  459.46                80
 01/06/2023   06:32:30   (  -0.02, -75.22) (   0.26, -76.45)  140.31                80
 01/07/2023   06:11:06   (  -0.01, -75.23) (  -0.77, -71.93)  376.98                80
 01/08/2023   18:33:02   (   0.01, -75.25) (  -0.40, -77.24)  226.18                80
 01/09/2023   18:16:57   (   0.01, -75.26) (   0.57, -72.70)  291.61                80
 01/11/2023   06:38:45   (  -0.02, -75.29) (   0.56, -77.98)  306.81                80
 01/12/2023   06:17:19   (  -0.02, -75.30) (  -0.42, -73.45)  211.26                80
 01/13/2023   18:39:16   (   0.02, -75.33) (  -0.74, -78.76)  390.79                80