Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 8 9.  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)
 08/09/2023   18:37:14   (  -0.03, -75.21) (  -0.82, -78.63)  389.94                80
 08/10/2023   18:21:09   (  -0.03, -75.21) (   0.22, -74.10)  127.00                80
 08/12/2023   06:42:55   (   0.02, -75.21) (   0.93, -79.37)  473.45                80
 08/13/2023   06:21:30   (  -0.01, -75.21) (  -0.12, -74.84)   42.97                80
 08/15/2023   18:24:38   (   0.01, -75.24) (  -0.07, -75.60)   40.95                80
 08/16/2023   18:08:31   (   0.01, -75.25) (   0.92, -71.06)  477.19                80
 08/18/2023   06:30:17   (  -0.01, -75.26) (   0.21, -76.33)  121.32                80
 08/19/2023   06:08:51   (  -0.00, -75.27) (  -0.78, -71.79)  397.23                80
 08/20/2023   18:30:45   (   0.00, -75.30) (  -0.38, -77.09)  202.98                80
 08/21/2023   18:14:39   (   0.00, -75.32) (   0.62, -72.55)  315.90                80
 08/23/2023   06:36:24   (  -0.00, -75.34) (   0.57, -77.81)  281.70                80