Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 2 13.  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)
 02/14/2023   18:38:55   (   0.06, -75.19) (  -0.75, -78.76)  406.51                80
 02/15/2023   18:22:51   (   0.05, -75.19) (   0.25, -74.23)  109.48                80
 02/17/2023   06:44:39   (  -0.05, -75.19) (   0.91, -79.51)  492.15                80
 02/18/2023   06:23:14   (  -0.04, -75.19) (  -0.10, -74.98)   24.01                80
 02/20/2023   18:26:26   (   0.03, -75.20) (  -0.09, -75.75)   63.25                80
 02/21/2023   18:10:22   (   0.03, -75.21) (   0.93, -71.23)  453.81                80
 02/23/2023   06:32:09   (  -0.03, -75.22) (   0.28, -76.49)  145.76                80
 02/24/2023   06:10:45   (  -0.03, -75.23) (  -0.75, -71.97)  371.66                80
 02/25/2023   18:32:41   (   0.03, -75.26) (  -0.43, -77.28)  230.68                80
 02/26/2023   18:16:36   (   0.03, -75.27) (   0.60, -72.75)  287.21                80