Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 8 12.  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)
 08/12/2023   06:42:55   (   0.03, -75.21) (   0.95, -79.36)  473.35                80
 08/13/2023   06:21:28   (   0.03, -75.21) (  -0.03, -74.82)   43.87                80
 08/15/2023   18:24:37   (   0.00, -75.23) (  -0.10, -75.59)   41.10                80
 08/16/2023   18:08:32   (   0.00, -75.24) (   0.95, -71.06)  476.94                80
 08/18/2023   06:30:17   (  -0.00, -75.25) (   0.25, -76.32)  121.97                80
 08/19/2023   06:08:52   (   0.00, -75.27) (  -0.80, -71.79)  396.52                80
 08/20/2023   18:30:45   (  -0.00, -75.30) (  -0.42, -77.08)  203.64                80
 08/21/2023   18:14:39   (  -0.00, -75.31) (   0.63, -72.55)  315.15                80
 08/23/2023   06:36:25   (  -0.00, -75.33) (   0.56, -77.81)  282.94                80
 08/24/2023   06:14:59   (  -0.00, -75.35) (  -0.49, -73.28)  235.74                80
 08/25/2023   18:36:53   (   0.00, -75.38) (  -0.72, -78.57)  364.33                80