Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 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)
 04/08/2024   08:25:58   (   0.00,-104.69) (   0.13,-105.15)   53.84                80
 04/09/2024   08:04:35   (   0.00,-104.69) (  -0.92,-100.63)  463.36                80
 04/10/2024   20:26:31   (  -0.00,-104.69) (  -0.30,-105.93)  141.63                80
 04/11/2024   20:10:28   (  -0.00,-104.70) (   0.76,-101.41)  375.56                80
 04/13/2024   08:32:16   (   0.01,-104.72) (   0.42,-106.67)  221.84                80
 04/14/2024   08:10:52   (   0.01,-104.73) (  -0.58,-102.14)  295.35                80
 04/15/2024   20:32:48   (  -0.02,-104.72) (  -0.63,-107.44)  309.51                80
 04/16/2024   20:16:43   (  -0.03,-104.73) (   0.37,-102.90)  207.93                80
 04/18/2024   08:38:32   (   0.03,-104.76) (   0.81,-108.17)  388.86                80
 04/19/2024   08:17:07   (   0.03,-104.77) (  -0.20,-103.64)  128.73                80