Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2023 4 6.  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)
 04/07/2023   08:04:25   (  -0.00,-104.74) (  -0.92,-100.51)  481.75                80
 04/08/2023   20:26:19   (  -0.00,-104.75) (  -0.24,-105.81)  121.34                80
 04/09/2023   20:10:13   (   0.00,-104.74) (   0.76,-101.27)  395.31                80
 04/11/2023   08:31:58   (  -0.00,-104.73) (   0.42,-106.53)  206.12                80
 04/12/2023   08:10:32   (  -0.00,-104.72) (  -0.59,-102.00)  309.97                80
 04/13/2023   20:32:26   (   0.00,-104.72) (  -0.56,-107.30)  294.20                80
 04/14/2023   20:16:19   (   0.00,-104.71) (   0.44,-102.76)  222.33                80
 04/16/2023   08:38:05   (   0.00,-104.70) (   0.72,-108.03)  378.32                80
 04/17/2023   08:16:38   (   0.00,-104.70) (  -0.29,-103.49)  138.20                80
 04/18/2023   20:38:32   (   0.00,-104.69) (  -0.90,-108.78)  465.69                80
 04/19/2023   20:22:25   (   0.00,-104.69) (   0.11,-104.24)   51.24                80