Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 8 10.  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   06:42:54   (   0.03, -75.20) (   0.98, -79.35)  474.38                80
 08/13/2023   06:21:29   (   0.03, -75.20) (  -0.06, -74.83)   42.29                80
 08/15/2023   18:24:38   (   0.01, -75.21) (  -0.07, -75.60)   43.71                80
 08/16/2023   18:08:31   (   0.01, -75.22) (   0.92, -71.06)  473.86                80
 08/18/2023   06:30:18   (  -0.00, -75.22) (   0.22, -76.33)  125.84                80
 08/19/2023   06:08:51   (  -0.00, -75.23) (  -0.77, -71.79)  392.17                80
 08/20/2023   18:30:45   (   0.00, -75.25) (  -0.39, -77.09)  208.61                80
 08/21/2023   18:14:39   (  -0.00, -75.26) (   0.60, -72.55)  309.71                80
 08/23/2023   06:36:25   (  -0.00, -75.27) (   0.54, -77.82)  289.15                80
 08/24/2023   06:14:59   (  -0.00, -75.29) (  -0.46, -73.28)  229.07                80