Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 5 24.  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)
 05/24/2023   06:41:03   (  -0.02, -75.19) (   0.90, -79.47)  486.79                80
 05/25/2023   06:24:58   (  -0.02, -75.19) (  -0.11, -74.94)   29.60                80
 05/27/2023   18:25:30   (   0.02, -75.19) (  -0.09, -75.71)   58.99                80
 05/28/2023   18:09:26   (   0.02, -75.20) (   0.93, -71.18)  457.89                80
 05/30/2023   06:28:33   (  -0.02, -75.21) (   0.28, -76.45)  141.37                80
 05/31/2023   06:12:29   (  -0.02, -75.22) (  -0.74, -71.92)  375.81                80
 06/01/2023   18:31:46   (   0.03, -75.23) (  -0.40, -77.24)  228.23                80
 06/02/2023   18:15:41   (   0.03, -75.24) (   0.63, -72.71)  289.04                80
 06/04/2023   06:34:49   (  -0.04, -75.26) (   0.57, -77.98)  309.97                80
 06/05/2023   06:18:44   (  -0.04, -75.27) (  -0.46, -73.45)  207.29                80
 06/06/2023   18:38:00   (   0.04, -75.28) (  -0.73, -78.76)  396.59                80