Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 11 20.  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)
 11/22/2023   06:31:09   (   0.01, -75.20) (   0.29, -76.58)  157.31                80
 11/23/2023   06:09:45   (   0.01, -75.20) (  -0.67, -72.05)  358.76                80
 11/24/2023   18:31:43   (  -0.01, -75.20) (  -0.48, -77.36)  245.64                80
 11/25/2023   18:15:39   (  -0.01, -75.21) (   0.49, -72.82)  270.85                80
 11/27/2023   06:37:28   (   0.01, -75.21) (   0.68, -78.10)  330.06                80
 11/28/2023   06:16:05   (   0.01, -75.21) (  -0.36, -73.58)  186.46                80
 11/29/2023   18:38:02   (  -0.01, -75.22) (  -0.84, -78.88)  417.36                80
 11/30/2023   18:21:58   (  -0.01, -75.23) (   0.19, -74.36)   99.62                80
 12/02/2023   06:43:48   (   0.01, -75.25) (   0.97, -79.64)  499.96                80
 12/03/2023   06:22:23   (   0.00, -75.26) (  -0.01, -75.10)   17.54                80