Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 8 27.  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)
 08/28/2023   06:42:56   (   0.06, -75.21) (   0.98, -79.38)  474.70                80
 08/29/2023   06:21:31   (   0.06, -75.21) (  -0.01, -74.85)   41.46                80
 08/31/2023   18:24:45   (  -0.05, -75.23) (  -0.12, -75.64)   46.15                80
 09/01/2023   18:08:41   (  -0.05, -75.24) (   0.88, -71.11)  471.05                80
 09/03/2023   06:30:29   (   0.05, -75.25) (   0.31, -76.38)  128.37                80
 09/04/2023   06:09:04   (   0.05, -75.27) (  -0.68, -71.85)  389.05                80
 09/05/2023   18:31:02   (  -0.05, -75.29) (  -0.48, -77.16)  213.79                80
 09/06/2023   18:14:58   (  -0.05, -75.30) (   0.58, -72.64)  303.88                80
 09/08/2023   06:36:47   (   0.04, -75.32) (   0.61, -77.91)  294.80                80
 09/09/2023   06:15:22   (   0.04, -75.34) (  -0.40, -73.38)  223.05                80