Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 2 15.  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)
 02/17/2023   06:44:38   (  -0.06, -75.19) (   0.94, -79.50)  492.34                80
 02/18/2023   06:23:14   (  -0.05, -75.19) (  -0.07, -74.97)   24.13                80
 02/20/2023   18:26:27   (   0.04, -75.21) (  -0.06, -75.76)   62.81                80
 02/21/2023   18:10:22   (   0.04, -75.22) (   0.96, -71.23)  454.42                80
 02/23/2023   06:32:10   (  -0.04, -75.23) (   0.24, -76.50)  145.29                80
 02/24/2023   06:10:45   (  -0.04, -75.24) (  -0.79, -71.98)  372.25                80
 02/25/2023   18:32:41   (   0.04, -75.27) (  -0.39, -77.29)  229.59                80
 02/26/2023   18:16:36   (   0.04, -75.28) (   0.59, -72.75)  288.43                80
 02/28/2023   06:38:23   (  -0.03, -75.30) (   0.60, -78.02)  310.07                80
 03/01/2023   06:16:59   (  -0.03, -75.32) (  -0.44, -73.49)  208.16                80