Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 9 24.  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)
 09/25/2025   20:33:55   (   0.10,-104.70) (  -0.52,-107.46)  315.42                80
 09/26/2025   20:17:50   (   0.10,-104.70) (   0.49,-102.93)  201.70                80
 09/28/2025   08:39:36   (  -0.10,-104.70) (   0.71,-108.19)  398.38                80
 09/29/2025   08:18:12   (  -0.10,-104.70) (  -0.36,-103.67)  118.23                80
 09/30/2025   20:40:06   (   0.10,-104.70) (  -0.84,-108.96)  485.07                80
 10/01/2025   20:24:01   (   0.11,-104.70) (   0.18,-104.42)   31.91                80
 10/04/2025   08:27:01   (  -0.11,-104.71) (  -0.02,-105.15)   50.59                80
 10/05/2025   08:05:36   (  -0.11,-104.71) (  -1.04,-100.62)  466.21                80
 10/06/2025   20:27:30   (   0.10,-104.71) (  -0.15,-105.91)  136.91                80
 10/07/2025   20:11:25   (   0.11,-104.71) (   0.88,-101.38)  380.27                80