Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 4 5.  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)
 04/06/2025   08:17:48   (  -0.02,-104.38) (  -0.22,-103.53)   96.82                80
 04/08/2025   20:23:36   (   0.01,-104.41) (   0.02,-104.29)   13.47                80
 04/11/2025   08:26:36   (  -0.01,-104.39) (   0.11,-105.02)   71.36                80
 04/12/2025   08:05:09   (  -0.01,-104.39) (  -0.88,-100.48)  445.80                80
 04/13/2025   20:27:04   (   0.01,-104.42) (  -0.27,-105.78)  154.53                80
 04/14/2025   20:10:57   (   0.02,-104.42) (   0.73,-101.24)  362.80                80
 04/16/2025   08:32:43   (  -0.01,-104.40) (   0.45,-106.50)  239.14                80
 04/17/2025   08:11:16   (  -0.01,-104.40) (  -0.56,-101.96)  277.80                80
 04/18/2025   20:33:09   (   0.01,-104.42) (  -0.63,-107.25)  323.17                80