Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 3 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 03/24/2023   20:10:35   (  -0.02,-104.76) (   0.74,-101.33)  391.20                80
 03/26/2023   08:32:21   (  -0.00,-104.75) (   0.40,-106.60)  210.15                80
 03/27/2023   08:10:54   (   0.00,-104.75) (  -0.59,-102.06)  306.58                80
 03/28/2023   20:32:49   (   0.00,-104.76) (  -0.57,-107.36)  296.66                80
 03/29/2023   20:16:42   (  -0.00,-104.76) (   0.43,-102.82)  220.50                80
 03/31/2023   08:38:28   (   0.00,-104.75) (   0.73,-108.09)  379.55                80
 04/01/2023   08:17:01   (   0.01,-104.75) (  -0.29,-103.55)  137.64                80
 04/02/2023   20:38:53   (  -0.01,-104.76) (  -0.95,-108.83)  465.30                80
 04/03/2023   20:22:47   (  -0.01,-104.76) (   0.09,-104.30)   52.31                80
 04/06/2023   08:25:45   (  -0.03,-104.77) (   0.05,-105.03)   30.13                80