Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 5 7.  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)
 05/08/2023   06:43:37   (  -0.02, -75.20) (   0.92, -79.42)  480.17                80
 05/09/2023   06:22:13   (  -0.02, -75.21) (  -0.08, -74.88)   36.29                80
 05/11/2023   18:25:25   (   0.01, -75.22) (  -0.10, -75.67)   50.93                80
 05/12/2023   18:09:22   (   0.01, -75.23) (   0.95, -71.15)  466.25                80
 05/14/2023   06:31:10   (  -0.01, -75.25) (   0.23, -76.42)  132.91                80
 05/15/2023   06:09:46   (  -0.01, -75.26) (  -0.78, -71.89)  384.72                80
 05/16/2023   18:31:42   (   0.01, -75.29) (  -0.44, -77.19)  217.55                80
 05/17/2023   18:15:39   (   0.01, -75.31) (   0.62, -72.67)  300.58                80
 05/19/2023   06:37:26   (  -0.01, -75.34) (   0.60, -77.94)  297.20                80
 05/20/2023   06:16:02   (  -0.01, -75.35) (  -0.47, -73.42)  221.07                80