Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 6 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 06/03/2025   08:33:09   (   0.00,-103.09) (   0.75,-106.58)  396.54                80
 06/04/2025   08:11:47   (  -0.00,-103.61) (  -0.34,-102.07)  176.11                80
 06/05/2025   20:36:27   (  -0.00,-104.44) (  -0.68,-107.41)  339.36                80
 06/06/2025   20:15:05   (   0.00,-104.96) (   0.48,-102.92)  233.52                80
 06/08/2025   08:39:37   (  -0.00,-105.75) (   0.55,-108.22)  281.97                80
 06/09/2025   08:18:14   (  -0.01,-106.27) (  -0.55,-103.72)  290.51                80
 06/10/2025   20:42:56   (   0.01,-107.09) (  -0.41,-109.08)  225.75                80
 06/11/2025   20:21:33   (   0.01,-107.61) (   0.69,-104.57)  346.85                80
 06/13/2025   08:46:04   (  -0.01,-108.40) (   0.32,-109.88)  168.88                80
 06/14/2025   08:24:42   (  -0.01,-108.91) (  -0.78,-105.37)  403.47                80