Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 8 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)
 08/08/2023   06:15:21   (   0.03, -75.20) (  -0.39, -73.34)  213.00                80
 08/09/2023   18:37:15   (  -0.02, -75.21) (  -0.79, -78.63)  389.96                80
 08/10/2023   18:21:10   (  -0.02, -75.22) (   0.25, -74.10)  127.19                80
 08/12/2023   06:42:56   (  -0.01, -75.22) (   0.90, -79.37)  473.43                80
 08/13/2023   06:21:29   (  -0.01, -75.22) (  -0.09, -74.83)   44.19                80
 08/15/2023   18:24:37   (   0.00, -75.25) (  -0.10, -75.59)   39.55                80
 08/16/2023   18:08:32   (   0.00, -75.26) (   0.95, -71.06)  478.87                80
 08/18/2023   06:30:17   (  -0.00, -75.28) (   0.25, -76.32)  119.06                80
 08/19/2023   06:08:52   (  -0.00, -75.30) (  -0.81, -71.79)  399.65                80
 08/20/2023   18:30:45   (   0.00, -75.33) (  -0.41, -77.08)  200.52                80