Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 4 1.  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)
 04/02/2024   08:38:25   (   0.00,-104.68) (   0.80,-108.18)  399.14                80
 04/03/2024   08:17:02   (   0.00,-104.67) (  -0.25,-103.65)  116.29                80
 04/04/2024   20:38:58   (   0.00,-104.64) (  -0.98,-108.95)  490.84                80
 04/05/2024   20:22:55   (   0.00,-104.64) (   0.07,-104.42)   25.00                80
 04/08/2024   08:25:59   (  -0.00,-104.64) (   0.11,-105.16)   59.15                80
 04/09/2024   08:04:34   (  -0.00,-104.63) (  -0.89,-100.62)  456.63                80
 04/10/2024   20:26:31   (   0.00,-104.61) (  -0.27,-105.93)  150.15                80
 04/11/2024   20:10:27   (  -0.00,-104.60) (   0.74,-101.40)  365.70                80
 04/13/2024   08:32:15   (  -0.00,-104.61) (   0.44,-106.67)  234.27                80
 04/14/2024   08:10:51   (  -0.00,-104.60) (  -0.57,-102.14)  281.41                80