Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 8 16.  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)
 08/16/2023   18:08:30   (  -0.04, -75.21) (   0.87, -71.04)  473.90                80
 08/18/2023   06:30:17   (   0.03, -75.20) (   0.27, -76.31)  126.51                80
 08/19/2023   06:08:50   (   0.03, -75.20) (  -0.73, -71.77)  390.84                80
 08/20/2023   18:30:45   (  -0.03, -75.22) (  -0.44, -77.07)  211.25                80
 08/21/2023   18:14:38   (  -0.03, -75.23) (   0.56, -72.53)  306.44                80
 08/23/2023   06:36:23   (   0.03, -75.23) (   0.63, -77.79)  293.04                80
 08/24/2023   06:14:58   (   0.03, -75.23) (  -0.43, -73.27)  224.60                80
 08/25/2023   18:36:51   (  -0.02, -75.25) (  -0.79, -78.56)  377.52                80
 08/26/2023   18:20:46   (  -0.00, -75.26) (   0.27, -74.03)  139.94                80
 08/28/2023   06:42:31   (  -0.01, -75.26) (   0.91, -79.29)  459.45                80
 08/29/2023   06:21:05   (  -0.01, -75.27) (  -0.10, -74.75)   58.66                80