Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 11 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)
 11/11/2023   06:34:32   (   0.02, -75.21) (   0.67, -78.04)  323.10                80
 11/12/2023   06:18:29   (   0.02, -75.21) (  -0.34, -73.51)  193.32                80
 11/13/2023   18:37:47   (  -0.02, -75.23) (  -0.83, -78.83)  410.41                80
 11/14/2023   18:21:43   (  -0.02, -75.23) (   0.19, -74.30)  106.14                80
 11/16/2023   06:43:33   (   0.02, -75.23) (   0.99, -79.58)  495.24                80
 11/17/2023   06:22:09   (   0.02, -75.24) (  -0.03, -75.05)   21.20                80
 11/19/2023   18:25:23   (  -0.01, -75.26) (  -0.16, -75.83)   65.51                80
 11/20/2023   18:09:20   (  -0.01, -75.27) (   0.87, -71.31)  451.67                80
 11/22/2023   06:31:09   (   0.01, -75.28) (   0.30, -76.58)  148.15                80
 11/23/2023   06:09:45   (   0.01, -75.30) (  -0.74, -72.06)  369.43                80
 11/24/2023   18:31:43   (  -0.01, -75.33) (  -0.46, -77.37)  232.35                80