Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 6 17.  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)
 06/17/2025   20:10:10   (  -0.01,-104.73) (   0.75,-101.42)  377.67                 7
 06/19/2025   08:33:25   (   0.01,-104.73) (   0.42,-106.70)  223.49                80
 06/20/2025   08:12:01   (   0.01,-104.73) (  -0.57,-102.16)  292.59                80
 06/21/2025   20:33:58   (  -0.01,-104.73) (  -0.64,-107.47)  311.94                80
 06/22/2025   20:17:54   (  -0.00,-104.73) (   0.41,-102.95)  203.95                80
 06/24/2025   08:39:43   (  -0.00,-104.72) (   0.75,-108.22)  397.76                80
 06/25/2025   08:18:18   (  -0.01,-104.72) (  -0.24,-103.69)  117.96                80
 06/26/2025   20:40:15   (   0.01,-104.72) (  -0.96,-108.99)  486.94                80
 06/27/2025   20:24:12   (   0.01,-104.72) (   0.10,-104.47)   29.45                80
 06/30/2025   08:27:15   (  -0.01,-104.73) (   0.12,-105.20)   54.93                80
 07/01/2025   08:05:51   (  -0.01,-104.73) (  -0.93,-100.68)  461.67                80