Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 5 30.  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)
 05/31/2025   20:29:58   (   0.00,-101.78) (  -0.91,-105.76)  453.51                80
 06/01/2025   20:08:37   (   0.01,-102.31) (   0.24,-101.26)  119.23                80
 06/03/2025   08:33:08   (  -0.00,-103.10) (   0.81,-106.57)  396.24                80
 06/04/2025   08:11:47   (  -0.00,-103.62) (  -0.35,-102.07)  176.58                80
 06/05/2025   20:36:27   (   0.00,-104.45) (  -0.67,-107.42)  338.74                80
 06/06/2025   20:15:06   (   0.01,-104.97) (   0.48,-102.92)  234.30                80
 06/08/2025   08:39:37   (  -0.00,-105.76) (   0.55,-108.23)  280.95                80
 06/09/2025   08:18:15   (  -0.01,-106.28) (  -0.61,-103.73)  291.72                80
 06/10/2025   20:42:56   (   0.01,-107.10) (  -0.41,-109.08)  224.35                80
 06/11/2025   20:21:33   (   0.01,-107.63) (   0.69,-104.57)  348.43                80
 06/13/2025   08:46:05   (  -0.00,-108.41) (   0.33,-109.88)  167.04                80