Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 6 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)
 06/03/2025   08:33:13   (   0.00,-104.40) (   0.52,-106.63)  254.59                80
 06/04/2025   08:11:50   (   0.00,-104.40) (  -0.52,-102.11)  261.27                80
 06/05/2025   20:33:47   (  -0.00,-104.41) (  -0.68,-107.41)  342.47                80
 06/06/2025   20:17:43   (   0.00,-104.41) (   0.36,-102.89)  173.77                80
 06/08/2025   08:39:32   (  -0.00,-104.41) (   0.85,-108.16)  428.00                80
 06/09/2025   08:18:08   (  -0.01,-104.40) (  -0.20,-103.64)   87.72                80
 06/11/2025   20:21:21   (   0.01,-104.40) (  -0.01,-104.41)    2.23                80
 06/14/2025   08:27:06   (  -0.01,-104.39) (   0.16,-105.16)   87.01                80
 06/15/2025   08:05:41   (  -0.01,-104.39) (  -0.83,-100.62)  428.51                80