Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 9 5.  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)
 09/05/2023   18:31:01   (  -0.07, -75.21) (  -0.52, -77.15)  220.76                80
 09/06/2023   18:14:58   (  -0.07, -75.22) (   0.53, -72.63)  295.50                80
 09/08/2023   06:36:46   (   0.06, -75.21) (   0.64, -77.90)  306.39                80
 09/09/2023   06:15:21   (   0.06, -75.21) (  -0.36, -73.37)  210.08                80
 09/10/2023   18:37:19   (  -0.05, -75.23) (  -0.80, -78.68)  393.02                80
 09/11/2023   18:21:14   (  -0.04, -75.24) (   0.21, -74.15)  124.02                80
 09/13/2023   06:43:02   (   0.04, -75.25) (   0.96, -79.43)  476.30                80
 09/14/2023   06:21:38   (   0.04, -75.26) (  -0.05, -74.90)   41.21                80
 09/16/2023   18:24:51   (  -0.03, -75.31) (  -0.09, -75.68)   42.47                80
 09/17/2023   18:08:46   (  -0.04, -75.32) (   0.92, -71.16)  475.81                80
 09/19/2023   06:30:34   (   0.03, -75.34) (   0.29, -76.42)  123.09                80