Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 10 30.  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)
 10/31/2023   06:43:12   (   0.03, -75.21) (   0.97, -79.49)  487.52                80
 11/01/2023   06:21:49   (   0.03, -75.22) (  -0.01, -74.96)   28.60                80
 11/03/2023   18:25:05   (  -0.02, -75.24) (  -0.15, -75.75)   58.60                80
 11/04/2023   18:09:02   (  -0.02, -75.25) (   0.90, -71.24)  458.27                80
 11/06/2023   06:30:51   (   0.01, -75.26) (   0.31, -76.51)  142.43                80
 11/07/2023   06:09:29   (   0.02, -75.28) (  -0.75, -71.99)  374.80                80
 11/08/2023   18:31:27   (  -0.01, -75.31) (  -0.45, -77.30)  227.20                80
 11/09/2023   18:15:24   (  -0.01, -75.33) (   0.56, -72.78)  290.69                80
 11/11/2023   06:37:13   (   0.01, -75.35) (   0.64, -78.05)  308.30                80
 11/12/2023   06:15:51   (   0.01, -75.37) (  -0.43, -73.54)  209.67                80
 11/13/2023   18:37:49   (  -0.01, -75.41) (  -0.75, -78.85)  391.84                80