Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 4 19.  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)
 04/19/2024   08:17:07   (   0.01,-104.70) (  -0.26,-103.64)  120.96                80
 04/20/2024   20:39:03   (  -0.01,-104.69) (  -0.98,-108.93)  484.38                80
 04/21/2024   20:22:58   (  -0.00,-104.69) (   0.05,-104.40)   32.59                80
 04/24/2024   08:26:01   (  -0.00,-104.71) (   0.12,-105.13)   48.72                80
 04/25/2024   08:04:36   (  -0.02,-104.71) (  -0.92,-100.60)  467.80                80
 04/26/2024   20:26:33   (   0.02,-104.70) (  -0.23,-105.91)  137.88                80
 04/27/2024   20:10:27   (   0.01,-104.69) (   0.75,-101.37)  378.91                80
 04/29/2024   08:29:35   (  -0.01,-104.71) (   0.43,-106.63)  219.56                80
 04/30/2024   08:13:29   (  -0.01,-104.70) (  -0.56,-102.09)  297.05                80
 05/01/2024   20:32:44   (   0.01,-104.68) (  -0.62,-107.39)  308.94                80
 05/02/2024   20:16:40   (   0.00,-104.68) (   0.44,-102.86)  207.89                80