Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 5 29.  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)
 05/30/2023   06:28:33   (  -0.01, -75.19) (   0.29, -76.44)  143.05                80
 05/31/2023   06:12:28   (  -0.01, -75.19) (  -0.73, -71.92)  373.17                80
 06/01/2023   18:31:46   (   0.02, -75.19) (  -0.42, -77.23)  232.27                80
 06/02/2023   18:15:41   (   0.02, -75.19) (   0.60, -72.70)  284.06                80
 06/04/2023   06:34:48   (  -0.03, -75.20) (   0.59, -77.97)  316.33                80
 06/05/2023   06:18:44   (  -0.02, -75.20) (  -0.43, -73.44)  199.99                80
 06/06/2023   18:38:00   (   0.03, -75.19) (  -0.76, -78.75)  405.31                80
 06/07/2023   18:21:56   (   0.02, -75.19) (   0.26, -74.22)  111.37                80
 06/09/2023   06:41:03   (  -0.03, -75.21) (   0.93, -79.49)  488.12                80
 06/10/2023   06:24:59   (  -0.02, -75.21) (  -0.10, -74.96)   29.14                80
 06/12/2023   18:25:29   (   0.02, -75.23) (  -0.12, -75.73)   57.13                80